{"id":1755,"date":"2026-04-07T15:54:36","date_gmt":"2026-04-07T07:54:36","guid":{"rendered":"https:\/\/jeez-semicon.com\/?p=1755"},"modified":"2026-04-07T16:27:34","modified_gmt":"2026-04-07T08:27:34","slug":"cmp-polishing-pads-the-complete-guide-for-semiconductor-professionals","status":"publish","type":"post","link":"https:\/\/jeez-semicon.com\/ja\/blog\/cmp-polishing-pads-the-complete-guide-for-semiconductor-professionals\/","title":{"rendered":"CMP Polishing Pads: The Complete Guide for Semiconductor Professionals"},"content":{"rendered":"<!-- ============================================================\n     CMP POLISHING PADS \u2014 PILLAR PAGE\n     Jizhi Electronic Technology Co., Ltd.\n     jeez-semicon.com  |  April 2026\n     Paste into WordPress Gutenberg \u2192 Custom HTML block\n     ============================================================ -->\n\n<style>\n\/* \u2500\u2500 Google Fonts 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*\/\n.jz-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:16px;margin:28px 0}\n.jz-stat{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius);padding:18px 16px;text-align:center;box-shadow:var(--shadow-card)}\n.jz-stat-num{font-size:28px;font-weight:700;color:var(--c-primary);font-family:var(--font-mono);line-height:1}\n.jz-stat-label{font-size:12px;color:var(--c-muted);margin-top:6px;line-height:1.4}\n\n\/* \u2500\u2500 Divider \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500 *\/\n.jz-divider{border:none;border-top:1px solid var(--c-border);margin:40px 0}\n\n\/* \u2500\u2500 Responsive tweaks \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500 *\/\n@media(max-width:640px){\n  .jz-hero{padding:36px 24px 32px}\n  .jz-cta-banner{padding:32px 22px}\n  .jz-related{padding:24px 18px}\n  .jz-btn-outline{margin-left:0;margin-top:10px;display:inline-block}\n}\n<\/style>\n\n<div class=\"jz-pillar\">\n\n<!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\n     HERO\n\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 -->\n<div class=\"jz-hero\">\n  <div class=\"jz-hero-kicker\">Jizhi Electronic Technology \u2014 Semiconductor Materials<\/div>\n  <p class=\"jz-hero-lead\">Everything you need to know about chemical mechanical planarization pads \u2014 from material science and groove design to SiC applications, defect control, and selecting the right pad for your process node.<\/p>\n  <div class=\"jz-hero-meta\">\n    <span>\ud83d\udcc5 Last updated: April 2026<\/span>\n    <span>\u23f1 22 min read<\/span>\n    <span>\ud83c\udfed By Jizhi Electronic Technology Co., Ltd.<\/span>\n  <\/div>\n<\/div>\n\n<!-- Tags -->\n<div class=\"jz-tags\">\n  <span class=\"jz-tag\">CMP Polishing Pads<\/span>\n  <span class=\"jz-tag\">Semiconductor Fabrication<\/span>\n  <span class=\"jz-tag\">Wafer Planarization<\/span>\n  <span class=\"jz-tag\">IC Manufacturing<\/span>\n  <span class=\"jz-tag\">SiC Polishing<\/span>\n  <span class=\"jz-tag\">Hard Pad<\/span>\n  <span class=\"jz-tag\">Soft Subpad<\/span>\n  <span class=\"jz-tag\">Pad Conditioning<\/span>\n<\/div>\n\n<!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\n     TABLE OF CONTENTS\n\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 -->\n<div class=\"jz-toc\">\n  <div class=\"jz-toc-title\">\u76ee\u6b21<\/div>\n  <ol>\n    <li><a href=\"#what-is-cmp-pad\">What Is a CMP Polishing Pad?<\/a><\/li>\n    <li><a href=\"#how-cmp-pads-work\">How CMP Pads Work<\/a><\/li>\n    <li><a href=\"#materials\">Pad Materials &amp; Construction<\/a><\/li>\n    <li><a href=\"#hard-vs-soft\">Hard vs. Soft Pads: Selection Guide<\/a><\/li>\n    <li><a href=\"#groove-design\">Groove Design &amp; Slurry Distribution<\/a><\/li>\n    <li><a href=\"#sic-pads\">SiC &amp; Advanced Semiconductor Applications<\/a><\/li>\n    <li><a href=\"#conditioning\">Pad Conditioning &amp; Lifespan<\/a><\/li>\n    <li><a href=\"#mrr\">Material Removal Rate (MRR) &amp; Key Parameters<\/a><\/li>\n    <li><a href=\"#defect-control\">Defect Control: Scratches &amp; Uniformity<\/a><\/li>\n    <li><a href=\"#poreless\">Poreless vs. Porous Pad Structures<\/a><\/li>\n    <li><a href=\"#brands\">Brands, Specifications &amp; Sourcing<\/a><\/li>\n    <li><a href=\"#buying-guide\">Buying Guide: Price Factors &amp; Procurement<\/a><\/li>\n    <li><a href=\"#faq\">FAQ<\/a><\/li>\n  <\/ol>\n<\/div>\n\n<!-- Trust bar -->\n<div class=\"jz-trust\">\n  <div class=\"jz-trust-badge\">ISO<br>Certified<br>\u30b5\u30d7\u30e9\u30a4\u30e4\u30fc<\/div>\n  <div class=\"jz-trust-text\">\n    <strong>Written and verified by Jizhi Electronic Technology Co., Ltd.<\/strong> \u2014 a dedicated manufacturer and supplier of CMP consumables serving wafer fabs, equipment OEMs, research institutes, and consumer electronics manufacturers worldwide. All technical data in this guide reflects current (April 2026) industry standards and our in-house R&amp;D findings.\n  <\/div>\n<\/div>\n\n<!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\n     INTRO\n\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 -->\n<p>Chemical mechanical planarization (CMP) has evolved from a niche planarization technique into one of the most critical and process-sensitive steps in modern semiconductor manufacturing. Whether a fab is producing leading-edge logic at 3 nm, power devices on 8-inch SiC wafers, or DRAM stacks requiring sub-nanometer topography control, the performance of the CMP polishing pad directly determines yield, throughput, and cost-per-wafer.<\/p>\n\n<p>This guide is the most comprehensive resource available on CMP polishing pads. It covers every aspect of pad science and engineering \u2014 from raw material selection and groove geometry to advanced defect mitigation and next-generation poreless architectures. Whether you are a process engineer optimizing an existing recipe, a procurement manager evaluating suppliers, or a researcher designing a custom planarization process, you will find actionable, technically grounded information here.<\/p>\n\n<div class=\"jz-stats\">\n  <div class=\"jz-stat\"><div class=\"jz-stat-num\">&gt;60%<\/div><div class=\"jz-stat-label\">of all CMP pads are polyurethane-based (IC1000 family)<\/div><\/div>\n  <div class=\"jz-stat\"><div class=\"jz-stat-num\">1\u20135 nm<\/div><div class=\"jz-stat-label\">Surface roughness (Ra) achieved with optimized soft-pad stacks<\/div><\/div>\n  <div class=\"jz-stat\"><div class=\"jz-stat-num\">500\u20132000<\/div><div class=\"jz-stat-label\">Wafers per pad lifetime under typical oxide CMP conditions<\/div><\/div>\n  <div class=\"jz-stat\"><div class=\"jz-stat-num\">9.5<\/div><div class=\"jz-stat-label\">Mohs hardness of SiC \u2014 requiring specialized pad formulations<\/div><\/div>\n<\/div>\n\n<!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\n     SECTION 1 \u2014 WHAT IS A CMP POLISHING PAD\n\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 -->\n<h2 id=\"what-is-cmp-pad\">1. What Is a CMP Polishing Pad?<\/h2>\n\n<p>A CMP polishing pad is a precisely engineered consumable that serves as the working surface in chemical mechanical planarization equipment. Mounted on a rotating platen, the pad contacts the front surface of a semiconductor wafer \u2014 held face-down by a carrier head \u2014 while an abrasive slurry is continuously delivered between the two surfaces. The combination of chemical attack (from the slurry chemistry) and mechanical abrasion (from pad asperities and slurry particles) removes material from elevated topographic features on the wafer surface, progressively flattening it to the nanometer-level planarity required for subsequent lithography and deposition steps.<\/p>\n\n<p>For a deeper technical overview of the process context, see our dedicated article: <a class=\"jz-link-chip\" href=\"https:\/\/jeez-semicon.com\/ja\/blog\/What-Is-a-CMP-Polishing-Pad-The-Ultimate-Guide\/\" target=\"_blank\">What Is a CMP Polishing Pad? The Ultimate Guide<\/a>.<\/p>\n\n<h3>Why Does Pad Choice Matter So Much?<\/h3>\n<p>The pad is not passive. Its surface micro-texture, porosity, hardness, compressibility, groove geometry, and chemical compatibility with the slurry all directly control:<\/p>\n\n<div class=\"jz-card-grid\">\n  <div class=\"jz-card\">\n    <div class=\"jz-card-icon\">\ud83d\udcd0<\/div>\n    <h4>Planarization Efficiency<\/h4>\n    <p>How effectively the pad removes material from high points while preserving low-lying features \u2014 the core metric of CMP quality.<\/p>\n  <\/div>\n  <div class=\"jz-card\">\n    <div class=\"jz-card-icon\">\u26a1<\/div>\n    <h4>Material Removal Rate<\/h4>\n    <p>The volumetric rate (\u00c5\/min) at which the target film is removed, which governs throughput and process window width.<\/p>\n  <\/div>\n  <div class=\"jz-card\">\n    <div class=\"jz-card-icon\">\ud83c\udfaf<\/div>\n    <h4>Within-Wafer Uniformity<\/h4>\n    <p>Radial and azimuthal variation in removal across a 200 mm or 300 mm wafer, critical for yield at tight nodes.<\/p>\n  <\/div>\n  <div class=\"jz-card\">\n    <div class=\"jz-card-icon\">\ud83d\udd2c<\/div>\n    <h4>Surface Defect Levels<\/h4>\n    <p>Scratch density, micro-scratch depth, and particle contamination on the post-CMP surface, affecting downstream electrical performance.<\/p>\n  <\/div>\n<\/div>\n\n<div class=\"jz-callout info\">\n  <div class=\"jz-callout-icon\">\u2139\ufe0f<\/div>\n  <div class=\"jz-callout-body\">\n    <strong>\u696d\u754c\u306e\u80cc\u666f<\/strong>\n    The global CMP consumables market was valued at approximately USD 3.2 billion in 2025 and is projected to exceed USD 5.1 billion by 2030, driven by 3D NAND layer scaling, heterogeneous integration, and rapid growth in SiC power device manufacturing. CMP polishing pads represent roughly 35\u201340% of total CMP consumable spend at a typical fab.\n  <\/div>\n<\/div>\n\n<!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\n     SECTION 2 \u2014 HOW CMP PADS WORK\n\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 -->\n<h2 id=\"how-cmp-pads-work\">2. How CMP Polishing Pads Work<\/h2>\n\n<p>The mechanics of CMP material removal are governed by three interacting phenomena: pad-wafer contact mechanics, slurry hydrodynamics, and surface chemistry. Understanding how these interact helps process engineers dial in recipes and diagnose yield excursions. Our detailed article on <a class=\"jz-link-chip\" href=\"https:\/\/jeez-semicon.com\/ja\/blog\/How-CMP-Polishing-Pads-Work\/\" target=\"_blank\">How CMP Polishing Pads Work<\/a> provides an in-depth look at each mechanism.<\/p>\n\n<h3>The Three-Body Contact Model<\/h3>\n<p>At the microscale, the pad surface is not flat. It is covered with asperities \u2014 micro-scale protrusions that constitute the actual contact points with the wafer. Real contact occurs at the tips of these asperities and at abrasive particles trapped between pad and wafer. This three-body contact (pad asperity \u2192 slurry particle \u2192 wafer surface) is the primary locus of mechanical material removal.<\/p>\n\n<div class=\"jz-steps\">\n  <div class=\"jz-step\">\n    <div class=\"jz-step-num\">1<\/div>\n    <div class=\"jz-step-body\">\n      <h4>Slurry Delivery &amp; Transport<\/h4>\n      <p>Slurry is dispensed onto the pad surface and transported radially inward by centrifugal force and groove channels. Pad groove geometry determines how uniformly the slurry is distributed under the wafer at any given moment.<\/p>\n    <\/div>\n  <\/div>\n  <div class=\"jz-step\">\n    <div class=\"jz-step-num\">2<\/div>\n    <div class=\"jz-step-body\">\n      <h4>Chemical Passivation Layer Formation<\/h4>\n      <p>Reactive species in the slurry (oxidizers, complexing agents, pH buffers) react with the wafer surface to form a thin, softer passivation layer on the target film \u2014 for example, converting Cu to Cu\u2082O or SiO\u2082 to a silanol-rich gel.<\/p>\n    <\/div>\n  <\/div>\n  <div class=\"jz-step\">\n    <div class=\"jz-step-num\">3<\/div>\n    <div class=\"jz-step-body\">\n      <h4>Mechanical Removal of Passivation Layer<\/h4>\n      <p>Abrasive particles (ceria, silica, alumina) borne by the pad asperities abrade away the weakened passivation layer, exposing fresh material for the next chemical cycle. The pad&#8217;s hardness controls how aggressively asperities penetrate the slurry film.<\/p>\n    <\/div>\n  <\/div>\n  <div class=\"jz-step\">\n    <div class=\"jz-step-num\">4<\/div>\n    <div class=\"jz-step-body\">\n      <h4>Byproduct Removal<\/h4>\n      <p>Removal products (dissolved ions, spent particles, detached film fragments) are swept away by fresh slurry through groove channels and pad pores, preventing re-deposition defects.<\/p>\n    <\/div>\n  <\/div>\n  <div class=\"jz-step\">\n    <div class=\"jz-step-num\">5<\/div>\n    <div class=\"jz-step-body\">\n      <h4>Pad Conditioning (In-Situ or Ex-Situ)<\/h4>\n      <p>A diamond disk dresser periodically abrades the pad surface, removing glazed and clogged material, restoring asperity height and porosity, and maintaining a stable removal rate over many wafer passes.<\/p>\n    <\/div>\n  <\/div>\n<\/div>\n\n<div class=\"jz-callout tip\">\n  <div class=\"jz-callout-icon\">\ud83d\udca1<\/div>\n  <div class=\"jz-callout-body\">\n    <strong>Preston&#8217;s Equation \u2014 The Governing Relationship<\/strong>\n    The empirical Preston equation (MRR = Kp \u00d7 P \u00d7 V) states that material removal rate is proportional to the product of applied pressure (P) and relative velocity (V), with the Preston coefficient (Kp) capturing pad and slurry material properties. Pad compressibility, surface roughness, and porosity all contribute to Kp, making pad selection central to process window engineering.\n  <\/div>\n<\/div>\n\n<!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\n     SECTION 3 \u2014 MATERIALS\n\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 -->\n<h2 id=\"materials\">3. Pad Materials &amp; Construction<\/h2>\n\n<p>The material composition of a CMP polishing pad determines its mechanical response under polishing conditions, its chemical compatibility with aggressive slurries, and its ability to maintain stable surface texture over thousands of wafer passes. For a thorough comparison of all major pad materials, read: <a class=\"jz-link-chip\" href=\"https:\/\/jeez-semicon.com\/ja\/blog\/CMP-Pad-Materials-Polyurethane-vs-Other-Options\/\" target=\"_blank\">CMP Pad Materials: Polyurethane vs Other Options<\/a>.<\/p>\n\n<div class=\"jz-table-wrap\">\n  <table class=\"jz-table\">\n    <thead>\n      <tr>\n        <th>\u7d20\u6750<\/th>\n        <th>Hardness (Shore D)<\/th>\n        <th>\u591a\u5b54\u6027<\/th>\n        <th>Key Advantage<\/th>\n        <th>\u4ee3\u8868\u7684\u306a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3<\/th>\n      <\/tr>\n    <\/thead>\n    <tbody>\n      <tr>\n        <td><strong>Polyurethane (PU) \u2014 filled<\/strong><\/td>\n        <td>55\u201365<\/td>\n        <td>Closed-cell micro-pores<\/td>\n        <td>High planarization efficiency, tunable hardness<\/td>\n        <td>Oxide, W, STI CMP at all nodes<\/td>\n      <\/tr>\n      <tr>\n        <td><strong>Polyurethane \u2014 poreless<\/strong><\/td>\n        <td>60\u201370<\/td>\n        <td>Near-zero<\/td>\n        <td>Ultra-low defect density, advanced nodes<\/td>\n        <td>Gate-last, EUV-layer CMP<\/td>\n      <\/tr>\n      <tr>\n        <td><strong>Polyurethane \u2014 soft (subpad)<\/strong><\/td>\n        <td>30\u201345<\/td>\n        <td>Open-cell foam<\/td>\n        <td>High global uniformity, gentle on fragile films<\/td>\n        <td>Cu BEOL, low-k dielectric, subpad layer<\/td>\n      <\/tr>\n      <tr>\n        <td><strong>Composite (felt + PU)<\/strong><\/td>\n        <td>20-35<\/td>\n        <td>High, fibrous<\/td>\n        <td>Excellent slurry retention, large-area contact<\/td>\n        <td>Legacy oxide, substrate lapping<\/td>\n      <\/tr>\n      <tr>\n        <td><strong>Diamond-impregnated<\/strong><\/td>\n        <td>N\/A (rigid)<\/td>\n        <td>\u4f4e\u3044<\/td>\n        <td>Extreme hardness for ultra-hard materials<\/td>\n        <td>SiC, GaN, sapphire, diamond substrates<\/td>\n      <\/tr>\n      <tr>\n        <td><strong>Non-woven fiber<\/strong><\/td>\n        <td>15-25<\/td>\n        <td>\u975e\u5e38\u306b\u9ad8\u3044<\/td>\n        <td>High slurry uptake, cost-effective<\/td>\n        <td>Pre-lapping, glass, optics polishing<\/td>\n      <\/tr>\n    <\/tbody>\n  <\/table>\n<\/div>\n\n<h3>Polyurethane: The Dominant Choice<\/h3>\n<p>Polyurethane dominates the CMP pad landscape for compelling reasons. The polymer matrix can be formulated across a wide hardness range by adjusting isocyanate-to-polyol ratios, cross-link density, and filler content. Closed-cell micro-pores \u2014 typically 20\u201350 \u00b5m in diameter, introduced by hollow microspheres or CO\u2082 blowing \u2014 serve as slurry reservoirs that replenish the contact interface during polishing. The pore size distribution, density, and uniformity are among the most tightly controlled parameters in pad manufacturing, directly impacting both removal rate consistency and defect levels.<\/p>\n\n<p>Jizhi Electronic Technology manufactures its polyurethane pad series using proprietary formulation chemistry developed through in-house R&amp;D, enabling us to offer pore density and hardness profiles tailored to specific process nodes \u2014 from mature 28 nm production to leading-edge FinFET and gate-all-around (GAA) technologies.<\/p>\n\n<!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\n     SECTION 4 \u2014 HARD VS SOFT\n\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 -->\n<h2 id=\"hard-vs-soft\">4. Hard vs. Soft CMP Polishing Pads: Selection Guide<\/h2>\n\n<p>The single most impactful pad specification decision is hardness. Hard pads and soft pads make fundamentally different trade-offs between planarization efficiency and surface conformance. Our detailed selection guide covers this topic in depth: <a class=\"jz-link-chip\" href=\"https:\/\/jeez-semicon.com\/ja\/blog\/Hard-vs-Soft-CMP-Polishing-Pads-Selection-Guide\/\" target=\"_blank\">Hard vs. Soft CMP Polishing Pads: Selection Guide<\/a>.<\/p>\n\n<div class=\"jz-two-col\">\n  <div class=\"jz-col-box\">\n    <h4 style=\"color:#0b3d91\">\ud83d\udd37 Hard Pads (Shore D 55\u201370)<\/h4>\n    <ul>\n      <li>High planarization efficiency \u2014 preferentially removes high topography<\/li>\n      <li>Stable removal rate across extended polishing campaigns<\/li>\n      <li>Better step-height reduction for STI and pre-metal dielectric<\/li>\n      <li>Lower conformance \u2014 risk of edge exclusion on warped wafers<\/li>\n      <li>Typical example: IC1000\u2122-style pads<\/li>\n      <li>Best for: oxide, W plug, STI, inter-layer dielectric (ILD)<\/li>\n    <\/ul>\n  <\/div>\n  <div class=\"jz-col-box\">\n    <h4 style=\"color:#0a5db5\">\ud83d\udd39 Soft Pads \/ Subpads (Shore D 30\u201345)<\/h4>\n    <ul>\n      <li>High within-wafer uniformity \u2014 conforms to local topography<\/li>\n      <li>Lower shear forces \u2014 protects fragile low-k and ultra-thin films<\/li>\n      <li>Often used as the lower layer in a stacked (hard + soft) configuration<\/li>\n      <li>Lower step-height reduction than hard pads<\/li>\n      <li>Best for: Cu BEOL, low-k dielectric, barrier, final surface finishing<\/li>\n      <li>Critical for 300 mm wafers where edge-center uniformity is demanding<\/li>\n    <\/ul>\n  <\/div>\n<\/div>\n\n<h3>The Stacked Pad Stack Strategy<\/h3>\n<p>Modern high-volume manufacturing frequently employs a two-layer pad stack: a hard polyurethane top pad bonded to a soft foam subpad. The hard upper layer delivers the planarization efficiency of a rigid surface, while the compliant lower layer absorbs wafer-scale bow and warp, dramatically improving edge-to-center removal uniformity. The compressibility of the combined stack can be tuned by varying subpad thickness and foam density, giving process engineers an additional process knob. For a complete overview of how these pad types are matched to specific device manufacturing steps \u2014 from front-end STI through Cu BEOL \u2014 see our guide to <a class=\"jz-link-chip\" href=\"https:\/\/jeez-semicon.com\/ja\/blog\/Semiconductor-CMP-Polishing-Pads\/\" target=\"_blank\">Semiconductor CMP Polishing Pads<\/a>.<\/p>\n\n<div class=\"jz-callout warn\">\n  <div class=\"jz-callout-icon\">\u26a0\ufe0f<\/div>\n  <div class=\"jz-callout-body\">\n    <strong>Hardness vs. Compressibility \u2014 Don&#8217;t Confuse Them<\/strong>\n    Shore D hardness measures resistance to surface indentation, while compressibility (%) measures the bulk deformation of the pad under a standardized load. A pad can be hard but compressible if its pore structure allows bulk compression without surface indentation. Both parameters must be specified and matched to the application.\n  <\/div>\n<\/div>\n\n<!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\n     SECTION 5 \u2014 GROOVE DESIGN\n\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 -->\n<h2 id=\"groove-design\">5. Groove Design &amp; Slurry Distribution<\/h2>\n\n<p>The surface of a CMP polishing pad is not flat \u2014 it is precisely machined with a network of grooves whose geometry profoundly affects slurry transport, heat dissipation, and polishing stability. Deep-dive analysis of groove geometry and its process impacts is covered in: <a class=\"jz-link-chip\" href=\"https:\/\/jeez-semicon.com\/ja\/blog\/CMP-Pad-Groove-Design-and-Slurry-Distribution\/\" target=\"_blank\">CMP Pad Groove Design and Slurry Distribution<\/a>.<\/p>\n\n<div class=\"jz-table-wrap\">\n  <table class=\"jz-table\">\n    <thead>\n      <tr>\n        <th>\u30b0\u30eb\u30fc\u30f4\u30fb\u30d1\u30bf\u30fc\u30f3<\/th>\n        <th>Geometry<\/th>\n        <th>Slurry Distribution<\/th>\n        <th>Best Application<\/th>\n      <\/tr>\n    <\/thead>\n    <tbody>\n      <tr>\n        <td><strong>Concentric (K-groove)<\/strong><\/td>\n        <td>Concentric rings, constant pitch<\/td>\n        <td>Uniform radial, excellent retention<\/td>\n        <td>Oxide, W, general purpose<\/td>\n      <\/tr>\n      <tr>\n        <td><strong>XY Cartesian Grid<\/strong><\/td>\n        <td>Orthogonal grid, equal pitch<\/td>\n        <td>Good bi-directional flow, easy to characterize<\/td>\n        <td>Cu BEOL, barrier metal<\/td>\n      <\/tr>\n      <tr>\n        <td><strong>Spiral (Archimedean)<\/strong><\/td>\n        <td>Single or multi-arm spiral<\/td>\n        <td>Centrifugal pumping effect enhances radial transport<\/td>\n        <td>High-throughput, slurry-sensitive applications<\/td>\n      <\/tr>\n      <tr>\n        <td><strong>Perforated (hole array)<\/strong><\/td>\n        <td>Through-holes in addition to grooves<\/td>\n        <td>Maximum slurry uptake, excellent for endpoint detection windows<\/td>\n        <td>Optical endpoint, in-situ metrology<\/td>\n      <\/tr>\n      <tr>\n        <td><strong>Asymmetric \/ Custom<\/strong><\/td>\n        <td>Variable pitch, depth, or angle by zone<\/td>\n        <td>Tunable radial profile \u2014 center-fast or edge-fast correction<\/td>\n        <td>Non-uniform incoming wafer topography, advanced node<\/td>\n      <\/tr>\n    <\/tbody>\n  <\/table>\n<\/div>\n\n<p>Groove width (typically 0.25\u20131.0 mm), depth (0.3\u20130.8 mm), and pitch (1.5\u20136 mm) are the primary design variables. Narrower, deeper grooves increase slurry retention time and can improve removal rate at the cost of reduced contact area and slightly higher defect risk. Shallower grooves reduce the risk of abrasive particle packing but require more frequent re-dressing to maintain transport efficiency.<\/p>\n\n<p>Jizhi&#8217;s application engineering team designs groove patterns using computational fluid dynamics (CFD) modeling to predict slurry film thickness and uniformity before pad fabrication, reducing process development cycles for new applications.<\/p>\n\n<!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\n     SECTION 6 \u2014 SiC\n\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 -->\n<h2 id=\"sic-pads\">6. SiC, GaN &amp; Advanced Semiconductor Applications<\/h2>\n\n<p>Silicon carbide (SiC) and gallium nitride (GaN) are the defining materials of the power electronics revolution \u2014 enabling EV inverters, industrial motor drives, fast-charging infrastructure, and 5G power amplifiers to operate at voltages, temperatures, and switching frequencies that silicon cannot sustain. Both materials impose extreme demands on CMP processes, and by extension, on polishing pads. Our specialist resource on this topic: <a class=\"jz-link-chip\" href=\"https:\/\/jeez-semicon.com\/ja\/blog\/SiC-CMP-Polishing-Pads-for-Third-Generation-Semiconductors\/\" target=\"_blank\">SiC CMP Polishing Pads for Third-Generation Semiconductors<\/a>.<\/p>\n\n<h3>Why SiC CMP Is So Difficult<\/h3>\n<p>SiC has a Mohs hardness of 9.5 \u2014 approaching that of diamond (10) and far exceeding Si (6.5) or SiO\u2082 (7). The chemical inertness of SiC is equally formidable: its oxidation rate under conventional oxidizing slurries is orders of magnitude slower than silicon, severely constraining the chemical component of the CMP mechanism. The result is that material removal rates on SiC with standard oxide CMP recipes are below 50 \u00c5\/min \u2014 commercially unacceptable for wafer production.<\/p>\n\n<div class=\"jz-callout tip\">\n  <div class=\"jz-callout-icon\">\u26a1<\/div>\n  <div class=\"jz-callout-body\">\n    <strong>Jizhi SiC Pad Technology<\/strong>\n    Jizhi Electronic Technology has developed a dedicated SiC CMP pad series using a modified polyurethane matrix reinforced with hard micro-filler phases. Combined with high-oxidation-potential slurries (e.g., H\u2082O\u2082-based colloidal ceria or Fenton-type reagents), our SiC pads achieve removal rates exceeding 500 \u00c5\/min on 4H-SiC while maintaining Ra &lt; 0.5 nm on 150 mm and 200 mm substrates. Contact our team for application-specific data sheets.\n  <\/div>\n<\/div>\n\n<h3>Key Pad Requirements for SiC CMP<\/h3>\n<div class=\"jz-card-grid\">\n  <div class=\"jz-card\">\n    <div class=\"jz-card-icon\">\ud83d\udc8e<\/div>\n    <h4>High Hardness &amp; Abrasion Resistance<\/h4>\n    <p>The pad must resist accelerated mechanical wear from the SiC surface and hard abrasive particles (diamond, ceria) used in SiC slurries.<\/p>\n  <\/div>\n  <div class=\"jz-card\">\n    <div class=\"jz-card-icon\">\ud83e\uddea<\/div>\n    <h4>\u5316\u5b66\u7684\u9069\u5408\u6027<\/h4>\n    <p>Strong oxidizers (KMnO\u2084, H\u2082O\u2082 at high concentrations, Fenton reagents) are used in SiC slurries. The pad polymer must maintain mechanical integrity under aggressive chemical environments.<\/p>\n  <\/div>\n  <div class=\"jz-card\">\n    <div class=\"jz-card-icon\">\ud83c\udf21\ufe0f<\/div>\n    <h4>Thermal Stability<\/h4>\n    <p>SiC polishing generates more frictional heat than silicon. Pads must maintain stable hardness and modulus up to 60\u201380\u00b0C process temperatures.<\/p>\n  <\/div>\n  <div class=\"jz-card\">\n    <div class=\"jz-card-icon\">\ud83c\udfaf<\/div>\n    <h4>Low Sub-Surface Damage<\/h4>\n    <p>For power device SiC, sub-surface crystal damage from prior lapping steps must be removed during CMP without introducing new dislocation damage \u2014 demanding precisely controlled pad compliance.<\/p>\n  <\/div>\n<\/div>\n\n<!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\n     SECTION 7 \u2014 CONDITIONING\n\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 -->\n<h2 id=\"conditioning\">7. Pad Conditioning &amp; Lifespan Management<\/h2>\n\n<p>A new pad removed from its packaging is not ready to polish. Nor does a pad maintain a consistent surface state over its useful life without active intervention. Pad conditioning \u2014 the process of mechanically abrading the pad surface with a diamond disk dresser \u2014 is arguably the most impactful process variable that fabs control during ongoing CMP operations. Full conditioning protocols and pad life monitoring strategies are detailed in: <a class=\"jz-link-chip\" href=\"https:\/\/jeez-semicon.com\/ja\/blog\/CMP-Pad-Conditioning-and-Lifespan-Management\/\" target=\"_blank\">CMP Pad Conditioning and Lifespan Management<\/a>.<\/p>\n\n<h3>Why Conditioning Is Essential<\/h3>\n<p>During polishing, three degradation mechanisms simultaneously reduce pad performance:<\/p>\n\n<div class=\"jz-steps\">\n  <div class=\"jz-step\">\n    <div class=\"jz-step-num\">1<\/div>\n    <div class=\"jz-step-body\">\n      <h4>Glazing (Surface Vitrification)<\/h4>\n      <p>Mechanical friction and heat partially melt and re-solidify the polyurethane surface, collapsing asperities and reducing the contact area available for slurry-mediated abrasion. Removal rate drops 20\u201340% in just 10\u201320 wafer passes on an unconditioned pad.<\/p>\n    <\/div>\n  <\/div>\n  <div class=\"jz-step\">\n    <div class=\"jz-step-num\">2<\/div>\n    <div class=\"jz-step-body\">\n      <h4>Pore Clogging<\/h4>\n      <p>Spent slurry particles, reaction byproducts, and polymer debris pack into pad pores and grooves, reducing slurry uptake capacity and causing non-uniform transport across the pad surface.<\/p>\n    <\/div>\n  <\/div>\n  <div class=\"jz-step\">\n    <div class=\"jz-step-num\">3<\/div>\n    <div class=\"jz-step-body\">\n      <h4>Asperity Height Loss (Wear)<\/h4>\n      <p>Over the pad&#8217;s full lifetime, cumulative material loss from both conditioning and polishing progressively reduces pad thickness, eventually reaching a minimum usable thickness that defines end-of-life.<\/p>\n    <\/div>\n  <\/div>\n<\/div>\n\n<h3>Break-In Protocol<\/h3>\n<p>A new pad requires a structured break-in (also called &#8220;seasoning&#8221;) before production polishing. Standard practice involves 30\u2013100 conditioning sweeps on a wet, freshly slurried pad surface before the first production wafer is polished. This process micro-fractures the surface skin, opens pores to slurry access, and establishes a stable, reproducible asperity distribution. Skipping break-in leads to a high-variance &#8220;run-in&#8221; region at the start of the pad&#8217;s life curve that can account for dozens of yield-risk wafers.<\/p>\n\n<div class=\"jz-callout info\">\n  <div class=\"jz-callout-icon\">\ud83d\udcca<\/div>\n  <div class=\"jz-callout-body\">\n    <strong>Pad Life Metrics \u2014 What to Track<\/strong>\n    Effective pad life management requires monitoring: (1) average removal rate per 10-wafer batch; (2) within-wafer non-uniformity (WIWNU) trend; (3) pad thickness (measured optically or by contact gauge); and (4) post-CMP scratch density from defect review. A removal rate decline of &gt;15% from the stable-state baseline or a WIWNU increase &gt;2% (1\u03c3) are typical end-of-life indicators.\n  <\/div>\n<\/div>\n\n<!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\n     SECTION 8 \u2014 MRR\n\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 -->\n<h2 id=\"mrr\">8. Material Removal Rate (MRR) &amp; Key Process Parameters<\/h2>\n\n<p>Material removal rate is the primary productivity metric of any CMP process. It determines how long each polish step takes and, in high-volume manufacturing, directly translates to cost-per-wafer. Understanding what controls MRR and how to optimize it without sacrificing surface quality is central to CMP process engineering. Our dedicated analysis: <a class=\"jz-link-chip\" href=\"https:\/\/jeez-semicon.com\/ja\/blog\/CMP-Material-Removal-Rate-and-Pad-Parameters\/\" target=\"_blank\">CMP Material Removal Rate and Pad Parameters<\/a>.<\/p>\n\n<h3>The Preston Framework and Its Limits<\/h3>\n<p>The Preston equation (MRR = Kp \u00d7 P \u00d7 V) provides a first-order model: removal rate scales linearly with down-force pressure (P, typically 1\u20136 psi on 300 mm tools) and relative velocity (V, determined by platen and carrier RPM, typically 50\u2013120 rpm). The Preston coefficient Kp encapsulates pad and slurry material properties. In practice, MRR deviates from Preston linearity at both very low pressures (where the hydrodynamic slurry film becomes load-bearing, reducing contact) and very high pressures (where pad deformation reduces asperity effectiveness and defect generation increases).<\/p>\n\n<div class=\"jz-table-wrap\">\n  <table class=\"jz-table\">\n    <thead>\n      <tr>\n        <th>\u30d1\u30e9\u30e1\u30fc\u30bf<\/th>\n        <th>\u5178\u578b\u7684\u306a\u7bc4\u56f2<\/th>\n        <th>Effect on MRR<\/th>\n        <th>Effect on Defects<\/th>\n      <\/tr>\n    <\/thead>\n    <tbody>\n      <tr>\n        <td>Down-force pressure<\/td>\n        <td>1\u20136 psi<\/td>\n        <td>\u2191 with pressure (Preston)<\/td>\n        <td>\u2191 scratch risk at high P<\/td>\n      <\/tr>\n      <tr>\n        <td>Platen \/ carrier RPM<\/td>\n        <td>30\u2013120 rpm<\/td>\n        <td>\u2191 with velocity<\/td>\n        <td>Neutral at moderate V<\/td>\n      <\/tr>\n      <tr>\n        <td>Slurry flow rate<\/td>\n        <td>100\u2013300 mL\/min<\/td>\n        <td>Plateau above saturation flow<\/td>\n        <td>\u2193 with higher flow (dilution)<\/td>\n      <\/tr>\n      <tr>\n        <td>Pad hardness (Shore D)<\/td>\n        <td>35\u201365<\/td>\n        <td>\u2191 Kp with harder pad<\/td>\n        <td>\u2191 with harder pad<\/td>\n      <\/tr>\n      <tr>\n        <td>Conditioner down-force<\/td>\n        <td>2\u20138 lbf<\/td>\n        <td>\u2191 with harder conditioning<\/td>\n        <td>\u2191 micro-scratch at high force<\/td>\n      <\/tr>\n      <tr>\n        <td>Slurry particle size<\/td>\n        <td>60\u2013200 nm (d50)<\/td>\n        <td>\u2191 with larger particles<\/td>\n        <td>\u2191 strongly with large particles<\/td>\n      <\/tr>\n    <\/tbody>\n  <\/table>\n<\/div>\n\n<!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\n     SECTION 9 \u2014 DEFECT CONTROL\n\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 -->\n<h2 id=\"defect-control\">9. Defect Control: Scratches, Uniformity &amp; Surface Quality<\/h2>\n\n<p>Post-CMP surface defects represent one of the top yield loss mechanisms in advanced semiconductor manufacturing. Micro-scratches, pits, slurry particle residues, and edge exclusion non-uniformities from the CMP pad-wafer interaction can cause dielectric breakdown, contact resistance shifts, and reliability failures in finished devices. Our complete defect analysis guide: <a class=\"jz-link-chip\" href=\"https:\/\/jeez-semicon.com\/ja\/blog\/CMP-Pad-Defect-Control-Scratches-and-Uniformity\/\" target=\"_blank\">CMP Pad Defect Control: Scratches and Uniformity<\/a>.<\/p>\n\n<h3>Primary Defect Types and Their Pad-Related Origins<\/h3>\n\n<div class=\"jz-card-grid\">\n  <div class=\"jz-card\">\n    <div class=\"jz-card-icon\">\ud83d\udd34<\/div>\n    <h4>Micro-Scratches<\/h4>\n    <p>Caused by over-conditioned pad asperities, agglomerated slurry particles, or pad debris embedding in the polishing interface. Harder pads pose greater scratch risk at equivalent pressure.<\/p>\n  <\/div>\n  <div class=\"jz-card\">\n    <div class=\"jz-card-icon\">\ud83d\udfe0<\/div>\n    <h4>Pitting &amp; Corrosion<\/h4>\n    <p>Aggressive slurry chemistry combined with pad surface channeling can create locally high chemical exposure, particularly on Cu and low-k surfaces. Groove geometry affects local chemical concentration.<\/p>\n  <\/div>\n  <div class=\"jz-card\">\n    <div class=\"jz-card-icon\">\ud83d\udfe1<\/div>\n    <h4>Edge Exclusion (EE) Non-Uniformity<\/h4>\n    <p>Insufficient pad conformance at the 300 mm wafer edge causes higher removal at the edge (edge-fast) or lower removal (edge-slow). Stacked pad design and retaining ring pressure are the primary controls.<\/p>\n  <\/div>\n  <div class=\"jz-card\">\n    <div class=\"jz-card-icon\">\ud83d\udfe2<\/div>\n    <h4>Particle Residues<\/h4>\n    <p>Spent slurry particles, pad debris, and reaction byproducts re-deposited on the wafer surface. Linked to inadequate groove drainage and post-CMP cleaning process compatibility.<\/p>\n  <\/div>\n<\/div>\n\n<h3>Within-Wafer Non-Uniformity (WIWNU) Metrics<\/h3>\n<p>WIWNU \u2014 expressed as the standard deviation (1\u03c3) of remaining film thickness across the wafer after CMP, normalized to mean thickness \u2014 is the primary pad performance uniformity metric. Sub-1% WIWNU (1\u03c3) is expected for oxide CMP at 28 nm and below. Achieving this requires matched pad compressibility, retaining ring geometry, and slurry delivery system design. Jizhi&#8217;s pad characterization laboratory measures WIWNU on sample wafers from every production lot as a quality release criterion.<\/p>\n\n<!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\n     SECTION 10 \u2014 PORELESS\n\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 -->\n<h2 id=\"poreless\">10. Poreless vs. Porous Pad Structures: Next-Generation Technology<\/h2>\n\n<p>The transition from macro-porous to micro-porous to poreless pad structures represents the most significant architectural evolution in CMP pad technology over the past decade. For a detailed technology comparison, see: <a class=\"jz-link-chip\" href=\"https:\/\/jeez-semicon.com\/ja\/blog\/Poreless-CMP-Pads-vs-Porous-Structure\/\" target=\"_blank\">Poreless CMP Pads vs. Porous Structure<\/a>.<\/p>\n\n<div class=\"jz-two-col\">\n  <div class=\"jz-col-box\">\n    <h4 style=\"color:#0b3d91\">Conventional Porous Pads<\/h4>\n    <ul>\n      <li>Micro-pores (20\u201350 \u00b5m) serve as slurry reservoirs<\/li>\n      <li>Proven performance across all major CMP applications<\/li>\n      <li>Variable pore size distribution \u2014 source of lot-to-lot MRR variation<\/li>\n      <li>Pore collapse risk under high conditioner force<\/li>\n      <li>Excellent slurry retention, forgiving to slurry flow interruptions<\/li>\n      <li>Lower cost \u2014 commodity availability from multiple suppliers<\/li>\n    <\/ul>\n  <\/div>\n  <div class=\"jz-col-box\">\n    <h4 style=\"color:#0a5db5\">Poreless \/ Near-Poreless Pads<\/h4>\n    <ul>\n      <li>Slurry transport via groove network only \u2014 no pad-internal reservoir<\/li>\n      <li>Ultra-consistent surface texture \u2014 near-zero lot variation in Kp<\/li>\n      <li>Dramatically lower defect density \u2014 no pore-related debris<\/li>\n      <li>Requires precise, stable slurry flow \u2014 no flow interruption tolerance<\/li>\n      <li>Ideal for EUV-layer, gate-all-around, and 3D NAND step-height CMP<\/li>\n      <li>Higher unit cost, but higher wafer-per-pad yield can offset premium<\/li>\n    <\/ul>\n  <\/div>\n<\/div>\n\n<p>Jizhi Electronic Technology offers both poreless and conventional porous pad series, allowing customers to select the optimal balance of performance, process stability, and economics for each CMP step in their integration scheme.<\/p>\n\n<!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\n     SECTION 11 \u2014 BRANDS\n\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 -->\n<h2 id=\"brands\">11. CMP Polishing Pad Brands, Specifications &amp; the Case for Domestic Alternatives<\/h2>\n\n<p>A comprehensive brand-by-brand comparison of specifications, certifications, and price-performance ratios is available in our dedicated resource: <a class=\"jz-link-chip\" href=\"https:\/\/jeez-semicon.com\/ja\/blog\/CMP-Polishing-Pad-Brands-Comparison\/\" target=\"_blank\">CMP Polishing Pad Brands Comparison<\/a>. Below is a summary of the competitive landscape as of April 2026.<\/p>\n\n<h3>Global Market Leaders<\/h3>\n<p>The CMP polishing pad market has historically been dominated by a small number of Western suppliers \u2014 Entegris (formerly Cabot Microelectronics \/ CMC Materials), 3M, and a handful of specialty manufacturers. The IC1000\u2122 family of polyurethane pads, originally developed by Rodel (now Entegris), became the industry standard reference for oxide CMP, and its specifications are still used as the benchmark for competitive qualification. For IC1000 specifications and alternatives, see: <a class=\"jz-link-chip\" href=\"https:\/\/jeez-semicon.com\/ja\/blog\/IC1000-CMP-Pad-Specs-and-Alternatives\/\" target=\"_blank\">IC1000 CMP Pad Specs and Alternatives<\/a>.<\/p>\n\n<h3>The Rise of High-Quality Domestic Alternatives<\/h3>\n<p>The geopolitical landscape of 2024\u20132026 has accelerated the qualification of domestically produced CMP pads across Asia \u2014 particularly in China, South Korea, and Taiwan \u2014 as fabs and equipment makers seek to de-risk supply chains that had become over-concentrated in a small number of Western sources. Jizhi Electronic Technology sits at the forefront of this transition, offering pads that are performance-qualified against IC1000 and NexPlanar benchmarks while offering:<\/p>\n\n<div class=\"jz-card-grid\">\n  <div class=\"jz-card\">\n    <div class=\"jz-card-icon\">\ud83d\udcb2<\/div>\n    <h4>Significant Cost Advantage<\/h4>\n    <p>15\u201330% lower landed cost versus equivalent Western-branded pads for the same performance tier, driven by domestic manufacturing scale and optimized logistics.<\/p>\n  <\/div>\n  <div class=\"jz-card\">\n    <div class=\"jz-card-icon\">\ud83d\ude9a<\/div>\n    <h4>Rapid Delivery<\/h4>\n    <p>In-stock inventory of all standard SKUs with 3\u20137 day lead times for most Asia-Pacific destinations, versus 8\u201316 week lead times common for import orders from Western suppliers.<\/p>\n  <\/div>\n  <div class=\"jz-card\">\n    <div class=\"jz-card-icon\">\ud83d\udd2c<\/div>\n    <h4>Technical Co-Development<\/h4>\n    <p>Direct access to our pad materials R&amp;D team for process qualification support, custom formulation requests, and on-site application engineering \u2014 difficult to obtain from large multinational suppliers.<\/p>\n  <\/div>\n  <div class=\"jz-card\">\n    <div class=\"jz-card-icon\">\ud83d\udccb<\/div>\n    <h4>Full Documentation<\/h4>\n    <p>COAs, SDS, process characterization data packages, and batch-level metrology reports provided with every shipment \u2014 meeting the documentation requirements of ISO-certified fabs worldwide.<\/p>\n  <\/div>\n<\/div>\n\n<div class=\"jz-callout cta\">\n  <div class=\"jz-callout-icon\">\ud83c\udfed<\/div>\n  <div class=\"jz-callout-body\">\n    <strong>View Jizhi&#8217;s Full CMP Polishing Pad Product Range<\/strong>\n    Explore specifications, product codes, and availability for our complete pad portfolio \u2014 including IC1000-equivalent hard pads, soft subpads, SiC-specific pads, and custom OEM formulations. <a href=\"https:\/\/jeez-semicon.com\/ja\/semi-categories\/polishing-pad\/\" target=\"_blank\">Browse CMP Polishing Pads \u2192<\/a>\n  <\/div>\n<\/div>\n\n<p>For applications that fall outside standard product specifications \u2014 unusual substrate geometries, non-standard wafer sizes, novel dielectric stacks, or highly aggressive slurry chemistries \u2014 Jizhi offers a structured co-development program. Learn about our full development and qualification workflow in: <a class=\"jz-link-chip\" href=\"https:\/\/jeez-semicon.com\/ja\/blog\/Custom-CMP-Polishing-Pad-Solutions\/\" target=\"_blank\">Custom CMP Polishing Pad Solutions<\/a>.<\/p>\n\n<!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\n     SECTION 12 \u2014 BUYING GUIDE\n\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 -->\n<h2 id=\"buying-guide\">12. Buying Guide: Price Factors, Procurement &amp; Supplier Qualification<\/h2>\n\n<p>Purchasing CMP polishing pads involves more than comparing unit prices. Total cost of ownership (TCO) considerations \u2014 including pad life, wafer-per-pad yield, post-CMP defect rework rates, and qualification costs \u2014 often dominate the economic analysis. Our full procurement guide: <a class=\"jz-link-chip\" href=\"https:\/\/jeez-semicon.com\/ja\/blog\/CMP-Polishing-Pad-Price-Factors-and-Buying-Guide\/\" target=\"_blank\">CMP Polishing Pad Price Factors and Buying Guide<\/a>.<\/p>\n\n<h3>What Drives CMP Pad Pricing<\/h3>\n\n<div class=\"jz-table-wrap\">\n  <table class=\"jz-table\">\n    <thead>\n      <tr>\n        <th>Cost Factor<\/th>\n        <th>Impact on Price<\/th>\n        <th>Buyer Leverage<\/th>\n      <\/tr>\n    <\/thead>\n    <tbody>\n      <tr>\n        <td>Pad diameter (200 mm vs 300 mm)<\/td>\n        <td>300 mm pads are 2.25\u00d7 larger by area \u2014 direct material cost impact<\/td>\n        <td>Low \u2014 process-determined<\/td>\n      <\/tr>\n      <tr>\n        <td>Polyurethane formulation complexity<\/td>\n        <td>Specialty low-defect or SiC formulations carry 30\u201380% premium over standard<\/td>\n        <td>Specify actual process requirements, not maximum specification<\/td>\n      <\/tr>\n      <tr>\n        <td>Groove machining<\/td>\n        <td>Custom groove patterns add tooling amortization cost (~10\u201320% for small volumes)<\/td>\n        <td>Standardize on common patterns; custom only where process-critical<\/td>\n      <\/tr>\n      <tr>\n        <td>Lot size \/ annual volume<\/td>\n        <td>Volume commitments of &gt;500 pads\/year typically unlock 8\u201315% price breaks<\/td>\n        <td>Negotiate annual blanket orders with call-off flexibility<\/td>\n      <\/tr>\n      <tr>\n        <td>Certification &amp; documentation requirements<\/td>\n        <td>IATF 16949, SEMI S2\/S8, full COA packages add 5\u201315% overhead at qualified suppliers<\/td>\n        <td>Clarify minimum needed documentation early in supplier selection<\/td>\n      <\/tr>\n      <tr>\n        <td>Freight &amp; import duties<\/td>\n        <td>Can add 15\u201330% to Western-branded pads imported into Asia<\/td>\n        <td>Qualify domestic suppliers or regional distribution hubs<\/td>\n      <\/tr>\n    <\/tbody>\n  <\/table>\n<\/div>\n\n<h3>Supplier Qualification Checklist<\/h3>\n<div class=\"jz-steps\">\n  <div class=\"jz-step\">\n    <div class=\"jz-step-num\">1<\/div>\n    <div class=\"jz-step-body\">\n      <h4>Request Process Characterization Data<\/h4>\n      <p>Ask for removal rate vs. pressure curves, WIWNU data on your target film stack, and pad-to-pad repeatability data (coefficient of variation in removal rate, &lt;5% is good).<\/p>\n    <\/div>\n  <\/div>\n  <div class=\"jz-step\">\n    <div class=\"jz-step-num\">2<\/div>\n    <div class=\"jz-step-body\">\n      <h4>Conduct Side-by-Side Benchmarking<\/h4>\n      <p>Run qualification lots with identical recipe parameters (pressure, velocity, slurry, conditioning) comparing the new pad against your current qualified pad. Target metrics: MRR within \u00b110%, WIWNU within \u00b10.5% (1\u03c3), defect density within \u00b120%.<\/p>\n    <\/div>\n  <\/div>\n  <div class=\"jz-step\">\n    <div class=\"jz-step-num\">3<\/div>\n    <div class=\"jz-step-body\">\n      <h4>Verify Lot-to-Lot Consistency<\/h4>\n      <p>Request data from three or more production lots. Standard deviation in removal rate across lots should be &lt;5%. This is often the differentiator between commodity and premium pads.<\/p>\n    <\/div>\n  <\/div>\n  <div class=\"jz-step\">\n    <div class=\"jz-step-num\">4<\/div>\n    <div class=\"jz-step-body\">\n      <h4>Assess Supply Chain Resilience<\/h4>\n      <p>Confirm in-stock inventory levels, maximum surge capacity, lead time commitments, and backup raw material sourcing. A supplier unable to scale up for a production surge is a yield risk.<\/p>\n    <\/div>\n  <\/div>\n<\/div>\n\n<!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\n     RELATED ARTICLES (Cluster Hub)\n\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 -->\n<div class=\"jz-related\">\n  <div class=\"jz-related-title\">\ud83d\udcda Deep-Dive Resources \u2014 All CMP Pad Topics<\/div>\n  <div class=\"jz-related-grid\">\n    <div class=\"jz-related-item\">\n      <div class=\"jz-related-cat\">FUNDAMENTALS<\/div>\n      <a href=\"https:\/\/jeez-semicon.com\/ja\/blog\/What-Is-a-CMP-Polishing-Pad-The-Ultimate-Guide\/\" target=\"_blank\">What Is a CMP Polishing Pad? The Ultimate Guide<\/a>\n    <\/div>\n    <div class=\"jz-related-item\">\n      <div class=\"jz-related-cat\">FUNDAMENTALS<\/div>\n      <a href=\"https:\/\/jeez-semicon.com\/ja\/blog\/How-CMP-Polishing-Pads-Work\/\" target=\"_blank\">How CMP Polishing Pads Work<\/a>\n    <\/div>\n    <div class=\"jz-related-item\">\n      <div class=\"jz-related-cat\">MATERIALS<\/div>\n      <a href=\"https:\/\/jeez-semicon.com\/ja\/blog\/CMP-Pad-Materials-Polyurethane-vs-Other-Options\/\" target=\"_blank\">CMP Pad Materials: Polyurethane vs Other Options<\/a>\n    <\/div>\n    <div class=\"jz-related-item\">\n      <div class=\"jz-related-cat\">SELECTION<\/div>\n      <a href=\"https:\/\/jeez-semicon.com\/ja\/blog\/Hard-vs-Soft-CMP-Polishing-Pads-Selection-Guide\/\" target=\"_blank\">Hard vs. Soft CMP Polishing Pads: Selection Guide<\/a>\n    <\/div>\n    <div class=\"jz-related-item\">\n      <div class=\"jz-related-cat\">ENGINEERING<\/div>\n      <a href=\"https:\/\/jeez-semicon.com\/ja\/blog\/CMP-Pad-Groove-Design-and-Slurry-Distribution\/\" target=\"_blank\">CMP Pad Groove Design and Slurry Distribution<\/a>\n    <\/div>\n    <div class=\"jz-related-item\">\n      <div class=\"jz-related-cat\">APPLICATIONS<\/div>\n      <a href=\"https:\/\/jeez-semicon.com\/ja\/blog\/SiC-CMP-Polishing-Pads-for-Third-Generation-Semiconductors\/\" target=\"_blank\">SiC CMP Polishing Pads for Third-Generation Semiconductors<\/a>\n    <\/div>\n    <div class=\"jz-related-item\">\n      <div class=\"jz-related-cat\">OPERATIONS<\/div>\n      <a href=\"https:\/\/jeez-semicon.com\/ja\/blog\/CMP-Pad-Conditioning-and-Lifespan-Management\/\" target=\"_blank\">CMP Pad Conditioning and Lifespan Management<\/a>\n    <\/div>\n    <div class=\"jz-related-item\">\n      <div class=\"jz-related-cat\">PROCESS<\/div>\n      <a href=\"https:\/\/jeez-semicon.com\/ja\/blog\/CMP-Material-Removal-Rate-and-Pad-Parameters\/\" target=\"_blank\">CMP Material Removal Rate and Pad Parameters<\/a>\n    <\/div>\n    <div class=\"jz-related-item\">\n      <div class=\"jz-related-cat\">QUALITY<\/div>\n      <a href=\"https:\/\/jeez-semicon.com\/ja\/blog\/CMP-Pad-Defect-Control-Scratches-and-Uniformity\/\" target=\"_blank\">CMP Pad Defect Control: Scratches and Uniformity<\/a>\n    <\/div>\n    <div class=\"jz-related-item\">\n      <div class=\"jz-related-cat\">TECHNOLOGY<\/div>\n      <a href=\"https:\/\/jeez-semicon.com\/ja\/blog\/Poreless-CMP-Pads-vs-Porous-Structure\/\" target=\"_blank\">Poreless CMP Pads vs. Porous Structure<\/a>\n    <\/div>\n    <div class=\"jz-related-item\">\n      <div class=\"jz-related-cat\">SOURCING<\/div>\n      <a href=\"https:\/\/jeez-semicon.com\/ja\/blog\/CMP-Polishing-Pad-Brands-Comparison\/\" target=\"_blank\">CMP Polishing Pad Brands Comparison<\/a>\n    <\/div>\n    <div class=\"jz-related-item\">\n      <div class=\"jz-related-cat\">SOURCING<\/div>\n      <a href=\"https:\/\/jeez-semicon.com\/ja\/blog\/IC1000-CMP-Pad-Specs-and-Alternatives\/\" target=\"_blank\">IC1000 CMP Pad Specs and Alternatives<\/a>\n    <\/div>\n    <div class=\"jz-related-item\">\n      <div class=\"jz-related-cat\">PROCUREMENT<\/div>\n      <a href=\"https:\/\/jeez-semicon.com\/ja\/blog\/CMP-Polishing-Pad-Price-Factors-and-Buying-Guide\/\" target=\"_blank\">CMP Polishing Pad Price Factors and Buying Guide<\/a>\n    <\/div>\n    <div class=\"jz-related-item\">\n      <div class=\"jz-related-cat\">APPLICATIONS<\/div>\n      <a href=\"https:\/\/jeez-semicon.com\/ja\/blog\/Semiconductor-CMP-Polishing-Pads\/\" target=\"_blank\">Semiconductor CMP Polishing Pads<\/a>\n    <\/div>\n    <div class=\"jz-related-item\">\n      <div class=\"jz-related-cat\">CUSTOMIZATION<\/div>\n      <a href=\"https:\/\/jeez-semicon.com\/ja\/blog\/Custom-CMP-Polishing-Pad-Solutions\/\" target=\"_blank\">Custom CMP Polishing Pad Solutions<\/a>\n    <\/div>\n  <\/div>\n<\/div>\n\n<!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\n     FAQ\n\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 -->\n<h2 id=\"faq\">13. Frequently Asked Questions<\/h2>\n\n<div class=\"jz-faq\">\n  <div class=\"jz-faq-item\">\n    <div class=\"jz-faq-q\">What is the difference between a CMP polishing pad and a lapping pad?<\/div>\n    <div class=\"jz-faq-a\">Lapping pads are used for high material removal in substrate preparation (e.g., removing sawing damage from SiC ingot slices) and are typically softer, more compliant, and used with free-abrasive slurries at high pressures. CMP pads are designed for the final planarization steps in device fabrication, prioritizing surface roughness, within-wafer uniformity, and defect control over removal rate. CMP pads are more precisely characterized and have tighter lot-to-lot specifications.<\/div>\n  <\/div>\n  <div class=\"jz-faq-item\">\n    <div class=\"jz-faq-q\">How many wafers can a CMP polishing pad process before replacement?<\/div>\n    <div class=\"jz-faq-a\">Under typical oxide CMP conditions (200\u2013300 mm wafers, IC1000-type hard pad, standard conditioning protocol), a pad will process 500\u20132,000 wafers before reaching its end-of-life indicators (MRR decline &gt;15% from stable-state baseline, or WIWNU increase &gt;2% 1\u03c3). Actual life depends heavily on conditioning intensity, down-force, slurry abrasivity, and target film hardness. SiC CMP pads typically have shorter lives of 100\u2013400 wafers due to the extreme abrasion from the hard substrate.<\/div>\n  <\/div>\n  <div class=\"jz-faq-item\">\n    <div class=\"jz-faq-q\">Can I use the same CMP pad for oxide and copper CMP?<\/div>\n    <div class=\"jz-faq-a\">Technically possible but not recommended for high-volume production. Oxide CMP uses harder pads (Shore D 55\u201365) optimized for planarization efficiency, while Cu CMP benefits from softer pads (Shore D 35\u201350) that protect fragile low-k dielectrics from delamination and reduce scratch generation. Using an oxide-qualified hard pad for Cu CMP typically increases scratch density and may cause low-k damage. Maintaining separate pad SKUs per process step is standard fab practice.<\/div>\n  <\/div>\n  <div class=\"jz-faq-item\">\n    <div class=\"jz-faq-q\">What slurry should I use with Jizhi CMP polishing pads?<\/div>\n    <div class=\"jz-faq-a\">Jizhi CMP pads are characterized against a range of commercial slurry types in our application laboratory. We provide process characterization data packages that include removal rate and uniformity data for recommended slurry-pad combinations for each application (oxide, Cu BEOL, W, STI, SiC). Contact our application engineering team for the pairing recommendations for your specific process node and tool configuration.<\/div>\n  <\/div>\n  <div class=\"jz-faq-item\">\n    <div class=\"jz-faq-q\">How do I qualify a new CMP pad supplier without disrupting production?<\/div>\n    <div class=\"jz-faq-a\">The standard approach is a parallel qualification: run qualification wafer lots using the new pad with identical recipe parameters as the qualified baseline pad (same pressure, velocity, slurry, conditioning). Target at least 3 lots of 25 wafers. Compare removal rate, WIWNU, defect density (post-CMP inspection at standard inspection recipe), and electrical test results. A split-lot approach \u2014 alternating production and qualification wafers \u2014 minimizes yield risk during the evaluation phase.<\/div>\n  <\/div>\n  <div class=\"jz-faq-item\">\n    <div class=\"jz-faq-q\">Does Jizhi offer custom CMP pad formulations for non-standard substrates?<\/div>\n    <div class=\"jz-faq-a\">Yes. Jizhi Electronic Technology&#8217;s R&amp;D team works with customers on custom formulations for challenging applications including GaN-on-Si, diamond substrates, sapphire, and novel dielectric stacks. Custom development projects typically require a 3\u20136 month timeline for formulation, characterization, and sample delivery. Please <a href=\"https:\/\/jeez-semicon.com\/ja\/contact\/\" target=\"_blank\">contact our technical team<\/a> to discuss your requirements.<\/div>\n  <\/div>\n<\/div>\n\n<!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\n     CTA BANNER\n\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 -->\n<div class=\"jz-cta-banner\">\n  <h2>Ready to Optimize Your CMP Process?<\/h2>\n  <p>Jizhi Electronic Technology supplies hard pads, soft subpads, SiC-specific pads, and fully customized CMP polishing pad solutions to wafer fabs, equipment makers, research institutes, and OEM manufacturers worldwide. Fast delivery from in-stock inventory. Full technical support from our process engineering team.<\/p>\n  <a class=\"jz-btn jz-btn-white\" href=\"https:\/\/jeez-semicon.com\/ja\/semi-categories\/polishing-pad\/\" target=\"_blank\">Browse CMP Polishing Pads<\/a>\n  <a class=\"jz-btn jz-btn-outline\" href=\"https:\/\/jeez-semicon.com\/ja\/contact\/\" target=\"_blank\">Contact Our Engineers<\/a>\n<\/div>\n\n<!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\n     SEO OPTIMIZATION NOTES (comment, hidden)\n\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 -->\n<!--\n  \u2554\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\n  \u2551  SEO OPTIMIZATION RECOMMENDATIONS\n  \u2551  For: https:\/\/jeez-semicon.com \u2014 CMP Polishing Pads Pillar\n  \u2560\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\n  \u2551  1. PAGE-LEVEL META (add via WordPress SEO plugin, e.g. Yoast\/RankMath)\n  \u2551     Title tag:   CMP Polishing Pads: Complete Guide 2026 | Jizhi Electronic Technology\n  \u2551     Meta desc:   Expert guide to CMP polishing pads \u2014 materials, groove design, SiC applications,\n  \u2551                  hard vs soft pad selection, defect control & buying guide. Trusted supplier.\n  \u2551     Focus KW:    CMP polishing pads\n  \u2551     Secondary:   chemical mechanical polishing pad, CMP pad, IC1000 CMP pad, SiC CMP pad\n  \u2551\n  \u2551  2. SCHEMA MARKUP (add via RankMath or custom plugin)\n  \u2551     - Article schema: author = \"Jizhi Electronic Technology Co., Ltd.\"\n  \u2551       datePublished = \"2026-04-01\", dateModified = \"2026-04-01\"\n  \u2551     - FAQPage schema: wrap all Q&A pairs in FAQ schema for Google FAQ rich results\n  \u2551     - BreadcrumbList schema: Home > Blog > CMP Polishing Pads\n  \u2551     - Organization schema on homepage: name, logo, contactPoint, sameAs (LinkedIn etc.)\n  \u2551\n  \u2551  3. INTERNAL LINK ARCHITECTURE\n  \u2551     - All 13 cluster articles should link BACK to this pillar page using\n  \u2551       anchor text variations: \"CMP polishing pads guide\", \"CMP pad overview\",\n  \u2551       \"complete CMP pad resource\", \"back to CMP polishing pads\"\n  \u2551     - Product page (polishing-pad\/) should link to this pillar with anchor:\n  \u2551       \"Learn more about CMP polishing pads\"\n  \u2551\n  \u2551  4. IMAGE SEO\n  \u2551     - Add real product images with alt text: \"Jizhi [pad type] CMP polishing pad [diameter]\"\n  \u2551     - Add process diagram image with alt: \"CMP polishing pad mechanism diagram\"\n  \u2551     - Use WebP format, compressed to <150 KB per image\n  \u2551     - Include a featured image for social sharing (OG image: 1200\u00d7630px)\n  \u2551\n  \u2551  5. CORE WEB VITALS\n  \u2551     - Defer Google Fonts loading: add rel=\"preconnect\" + font-display:swap\n  \u2551     - This HTML is self-contained CSS \u2014 no render-blocking external CSS\n  \u2551     - Minify the <style> block before production deployment\n  \u2551\n  \u2551  6. ADDITIONAL KEYWORD OPPORTUNITIES\n  \u2551     - \"CMP pad supplier China\" (high commercial intent, low competition)\n  \u2551     - \"buy CMP polishing pads\" (transactional)\n  \u2551     - \"IC1000 equivalent pad\" (competitor brand + alternative)\n  \u2551     - \"SiC wafer polishing pad\" (growing segment, April 2026 surge in SiC demand)\n  \u2551     - \"CMP consumables supplier\" (broad category)\n  \u2551\n  \u2551  7. CONTENT FRESHNESS\n  \u2551     - Update \"Last updated\" date and statistics annually\n  \u2551     - Add new cluster articles as industry develops (e.g., diamond CMP, 2 nm node pads)\n  \u2551     - Consider adding a \"What's New in CMP Pads\" section updated quarterly\n  \u2551\n  \u2551  8. BACKLINK ACQUISITION TARGETS\n  \u2551     - Semiconductor Engineering (semiengineering.com) \u2014 accept contributed articles\n  \u2551     - 3DInCites.com \u2014 SiC\/advanced packaging focus\n  \u2551     - Solid State Technology \u2014 technical editorial\n  \u2551     - Research paper citations: publish application notes, request citations from authors\n  \u255a\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\n-->\n\n<\/div><!-- .jz-pillar -->","protected":false},"excerpt":{"rendered":"<p>Jizhi Electronic Technology \u2014 Semiconductor Materials Everything you need to know about chemical mechanical planarization pads \u2014 from material science and groove design to SiC applications, defect control, and selecting  &#8230;<\/p>","protected":false},"author":1,"featured_media":1805,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[9,59],"tags":[],"class_list":["post-1755","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","category-industry"],"acf":[],"_links":{"self":[{"href":"https:\/\/jeez-semicon.com\/ja\/wp-json\/wp\/v2\/posts\/1755","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jeez-semicon.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jeez-semicon.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jeez-semicon.com\/ja\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jeez-semicon.com\/ja\/wp-json\/wp\/v2\/comments?post=1755"}],"version-history":[{"count":2,"href":"https:\/\/jeez-semicon.com\/ja\/wp-json\/wp\/v2\/posts\/1755\/revisions"}],"predecessor-version":[{"id":1757,"href":"https:\/\/jeez-semicon.com\/ja\/wp-json\/wp\/v2\/posts\/1755\/revisions\/1757"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/jeez-semicon.com\/ja\/wp-json\/wp\/v2\/media\/1805"}],"wp:attachment":[{"href":"https:\/\/jeez-semicon.com\/ja\/wp-json\/wp\/v2\/media?parent=1755"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jeez-semicon.com\/ja\/wp-json\/wp\/v2\/categories?post=1755"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jeez-semicon.com\/ja\/wp-json\/wp\/v2\/tags?post=1755"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}