{"id":1785,"date":"2026-04-07T15:55:39","date_gmt":"2026-04-07T07:55:39","guid":{"rendered":"https:\/\/jeez-semicon.com\/?p=1785"},"modified":"2026-04-07T16:29:24","modified_gmt":"2026-04-07T08:29:24","slug":"poreless-cmp-pads-vs-porous-structure-technology-comparison","status":"publish","type":"post","link":"https:\/\/jeez-semicon.com\/ja\/blog\/poreless-cmp-pads-vs-porous-structure-technology-comparison\/","title":{"rendered":"Poreless CMP Pads vs. Porous Structure: Technology Comparison"},"content":{"rendered":"<!-- ============================================================\n     CLUSTER 10 \u2014 Poreless CMP Pads vs. Porous Structure\n     Jizhi Electronic Technology Co., Ltd. | April 2026\n     URL: \/blog\/Poreless-CMP-Pads-vs-Porous-Structure\n     ============================================================ -->\n<style>\n@import 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rgba(255,255,255,.6);margin-left:12px}\n.jz-btn-outline:hover{background:rgba(255,255,255,.12);color:#fff}\n.jz-faq{margin:28px 0}\n.jz-faq-item{border:1px solid var(--c-border);border-radius:var(--radius);margin-bottom:12px;overflow:hidden;background:var(--c-surface)}\n.jz-faq-q{padding:16px 20px;font-weight:600;font-size:15px;color:var(--c-primary-dark);display:flex;justify-content:space-between;align-items:center}\n.jz-faq-q::after{content:'+';font-size:20px;font-weight:300;color:var(--c-accent);flex-shrink:0}\n.jz-faq-a{padding:0 20px 16px;font-size:15px;color:#3a4255;line-height:1.75}\n@media(max-width:640px){.jz-hero{padding:36px 24px 32px}.jz-cta-banner{padding:32px 22px}.jz-related{padding:24px 18px}.jz-btn-outline{margin-left:0;margin-top:10px;display:inline-block}}\n<\/style>\n\n<div class=\"jz-art\" id=\"cluster10\">\n<a class=\"jz-back\" href=\"https:\/\/jeez-semicon.com\/ja\/blog\/CMP-Polishing-Pads-The-Complete-Guide\/\" target=\"_blank\">Back to CMP Polishing Pads: The Complete Guide<\/a>\n\n<div class=\"jz-hero\">\n  <div class=\"jz-hero-kicker\">Jizhi Electronic Technology \u2014 Technology Series<\/div>\n  <p class=\"jz-hero-lead\">A detailed comparison of poreless and conventional porous CMP polishing pad architectures \u2014 examining slurry transport, defect performance, MRR consistency, process control requirements, and total cost of ownership for advanced node and specialty semiconductor applications.<\/p>\n  <div class=\"jz-hero-meta\">\n    <span>\ud83d\udcc5 April 2026<\/span>\n    <span>\u23f1 13 min read<\/span>\n    <span>\ud83c\udfed Jizhi Electronic Technology Co., Ltd.<\/span>\n  <\/div>\n<\/div>\n\n<div class=\"jz-tags\">\n  <span class=\"jz-tag\">Poreless CMP Pad<\/span>\n  <span class=\"jz-tag\">Porous CMP Pad<\/span>\n  <span class=\"jz-tag\">Advanced Node CMP<\/span>\n  <span class=\"jz-tag\">Pad Architecture<\/span>\n  <span class=\"jz-tag\">Defect Density<\/span>\n  <span class=\"jz-tag\">MRR Consistency<\/span>\n  <span class=\"jz-tag\">Next-Generation Pad<\/span>\n<\/div>\n\n<div class=\"jz-trust\">\n  <div class=\"jz-trust-badge\">Next<br>Gen<\/div>\n  <div class=\"jz-trust-text\"><strong>Written by Jizhi Electronic Technology Co., Ltd.<\/strong> \u2014 CMP pad manufacturer with both porous and poreless pad series in active production. Poreless pad qualification data reflects our current April 2026 customer qualification status.<\/div>\n<\/div>\n\n<div class=\"jz-toc\">\n  <div class=\"jz-toc-title\">\u76ee\u6b21<\/div>\n  <ol>\n    <li><a href=\"#architecture\">Architectural Differences Explained<\/a><\/li>\n    <li><a href=\"#slurry-transport\">Slurry Transport: Pore vs. Groove<\/a><\/li>\n    <li><a href=\"#defect-performance\">Defect Performance Comparison<\/a><\/li>\n    <li><a href=\"#mrr-consistency\">MRR and Lot-to-Lot Consistency<\/a><\/li>\n    <li><a href=\"#process-control\">Process Control Requirements<\/a><\/li>\n    <li><a href=\"#conditioning\">Conditioning Behavior Differences<\/a><\/li>\n    <li><a href=\"#tco\">Total Cost of Ownership Analysis<\/a><\/li>\n    <li><a href=\"#when-to-use\">When to Use Each Architecture<\/a><\/li>\n    <li><a href=\"#faq\">FAQ<\/a><\/li>\n  <\/ol>\n<\/div>\n\n<p>The shift from conventional porous polyurethane pads to poreless pad architectures is the most significant structural change in CMP pad technology since the introduction of machined groove patterns in the mid-1990s. Poreless pads \u2014 with near-zero internal pore volume \u2014 eliminate several of the most fundamental performance limitations of conventional pads, particularly lot-to-lot Kp variation and pad-borne polymer debris generation. But they introduce new process control demands that must be understood before a transition is feasible.<\/p>\n\n<p>This guide provides the rigorous, side-by-side comparison that process engineers need to evaluate whether poreless pads are the right choice for a specific CMP application. For background on pad material types more broadly, see: <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-stats\">\n  <div class=\"jz-stat\"><div class=\"jz-stat-num\">&lt;3%<\/div><div class=\"jz-stat-label\">Kp coefficient of variation (lot-to-lot) achievable with poreless pads<\/div><\/div>\n  <div class=\"jz-stat\"><div class=\"jz-stat-num\">~60%<\/div><div class=\"jz-stat-label\">Reduction in pad-borne polymer debris defects vs. conventional porous pads<\/div><\/div>\n  <div class=\"jz-stat\"><div class=\"jz-stat-num\">2\u20133\u00d7<\/div><div class=\"jz-stat-label\">Cost premium of poreless pads vs. equivalent conventional pads (unit price)<\/div><\/div>\n  <div class=\"jz-stat\"><div class=\"jz-stat-num\">&lt;1%<\/div><div class=\"jz-stat-label\">Pore volume fraction in true poreless pads (vs. 20\u201330% in conventional porous PU)<\/div><\/div>\n<\/div>\n\n<h2 id=\"architecture\">1. Architectural Differences Explained<\/h2>\n<p>In a conventional porous CMP pad, hollow microspheres dispersed throughout the polyurethane matrix create a network of closed-cell micro-pores (20\u201350 \u00b5m diameter, 20\u201330% volume fraction) that serve as slurry reservoirs. When the pad surface is conditioned, the diamond dresser exposes cross-sections of these pores at the surface, creating an array of micro-cups that absorb and release slurry during polishing. This pore network is the primary slurry transport mechanism within the pad bulk, supplementing the groove-based macro-transport.<\/p>\n\n<p>A poreless pad eliminates this internal pore network entirely. The polyurethane is cast from a pore-free formulation (no microspheres), producing a dense, homogeneous polymer matrix with pore volume fraction below 1\u20132%. The only slurry transport mechanism available is the groove network machined into the pad surface. From a materials science perspective, poreless pads are closer to a solid engineering polymer than to a foam \u2014 their mechanical behavior is more predictable, more consistent, and more thermally stable.<\/p>\n\n<h2 id=\"slurry-transport\">2. Slurry Transport: Pore vs. Groove<\/h2>\n<div class=\"jz-two-col\">\n  <div class=\"jz-col-box\">\n    <h4>\ud83d\udd35 Porous Pad \u2014 Dual Transport<\/h4>\n    <ul>\n      <li>Groove channels: macro-transport, slurry delivery from pad edge to contact zone<\/li>\n      <li>Pore reservoir: micro-transport, continuous slurry replenishment between groove passes<\/li>\n      <li>Pore-derived slurry provides a buffer against transient slurry flow interruptions<\/li>\n      <li>Tolerant of slurry flow rate variations of \u00b120% with minimal MRR impact<\/li>\n      <li>Pore saturation time (1\u20133 minutes of pre-wet) required before polishing<\/li>\n      <li>Slurry utilization lower \u2014 significant volume absorbed into pores and not used at interface<\/li>\n    <\/ul>\n  <\/div>\n  <div class=\"jz-col-box\">\n    <h4>\u26a1 Poreless Pad \u2014 Groove-Only Transport<\/h4>\n    <ul>\n      <li>Groove channels: sole slurry transport mechanism<\/li>\n      <li>No internal reservoir \u2014 slurry at interface is purely groove-delivered, not pad-stored<\/li>\n      <li>Sensitive to slurry flow interruption \u2014 MRR drops within seconds of flow stop<\/li>\n      <li>Requires slurry flow rate variation &lt;\u00b110% for stable MRR<\/li>\n      <li>No pre-wet saturation required \u2014 ready to polish immediately after installation<\/li>\n      <li>Higher slurry utilization \u2014 all delivered slurry reaches the interface directly via grooves<\/li>\n    <\/ul>\n  <\/div>\n<\/div>\n\n<h2 id=\"defect-performance\">3. Defect Performance Comparison<\/h2>\n<p>The most compelling advantage of poreless pads is defect performance, particularly for polymer debris-related particle contamination. The comparison is stark:<\/p>\n\n<div class=\"jz-table-wrap\">\n  <table class=\"jz-table\">\n    <thead><tr><th>Defect Type<\/th><th>Porous Pad Performance<\/th><th>Poreless Pad Performance<\/th><th>Advantage<\/th><\/tr><\/thead>\n    <tbody>\n      <tr><td><strong>Pad polymer debris (particles)<\/strong><\/td><td>Moderate \u2014 pore-wall fragments shed during conditioning and polishing<\/td><td class=\"win\">Very low \u2014 no pore walls to fracture; dense matrix sheds minimal debris<\/td><td class=\"win\">Poreless: ~60% fewer pad-borne particles<\/td><\/tr>\n      <tr><td><strong>\u30de\u30a4\u30af\u30ed\u30b9\u30af\u30e9\u30c3\u30c1<\/strong><\/td><td>Dependent on conditioning \u2014 asperity distribution more variable lot-to-lot<\/td><td class=\"win\">Lower variability in asperity distribution \u2014 more consistent scratch performance<\/td><td class=\"win\">Poreless: more predictable scratch baseline<\/td><\/tr>\n      <tr><td><strong>Slurry particle residues<\/strong><\/td><td>Moderate \u2014 pore-resident slurry can release partially-spent particles<\/td><td class=\"win\">Lower \u2014 all slurry is fresh from groove channels; no stale pore-resident particles<\/td><td class=\"win\">Poreless: fewer slurry residue defects<\/td><\/tr>\n      <tr><td><strong>MRR-driven non-uniformity<\/strong><\/td><td class=\"mid\">Moderate \u2014 pore density variation across pad radius creates MRR radial variation<\/td><td class=\"win\">Very low \u2014 groove-only transport has more predictable radial uniformity<\/td><td class=\"win\">Poreless: lower radial MRR variation<\/td><\/tr>\n      <tr><td><strong>Pitting from chemical stagnation<\/strong><\/td><td>Present \u2014 pore-resident spent slurry can create chemical hotspots<\/td><td class=\"win\">Eliminated \u2014 no stagnant slurry in pores<\/td><td class=\"win\">Poreless: no pore-related pitting<\/td><\/tr>\n    <\/tbody>\n  <\/table>\n<\/div>\n\n<h2 id=\"mrr-consistency\">4. MRR and Lot-to-Lot Consistency<\/h2>\n<p>The second major advantage of poreless pads is MRR lot-to-lot consistency \u2014 the ability to deliver the same removal rate from one pad lot to the next without recipe adjustment. This is where the pore structure of conventional pads creates a fundamental limitation: pore size distribution (mean diameter and coefficient of variation) varies between production lots despite tight manufacturing controls, causing Kp to shift by 5\u201315% between lots. This variation requires process engineers to perform removal rate verification on new pad lots and adjust recipe pressure accordingly.<\/p>\n\n<p>Poreless pads, with no pore structure to vary, deliver Kp values with lot-to-lot CV below 3% \u2014 compared to 8\u201315% CV for conventional porous pads. In practical terms: a process running on a poreless pad in an APC (advanced process control) framework can use a fixed recipe without per-lot verification, reducing engineering overhead and the risk of yield excursion from a new pad lot that was not properly characterized before production release.<\/p>\n\n<h2 id=\"process-control\">5. Process Control Requirements \u2014 The Poreless Challenge<\/h2>\n<p>The performance benefits of poreless pads come at the cost of significantly tighter process control requirements. These requirements must be evaluated honestly before committing to a poreless pad transition:<\/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>Slurry Flow Rate Stability Is Non-Negotiable with Poreless Pads<\/strong>\n    The pore reservoir in a conventional pad buffers against slurry flow variations of \u00b120% with minimal MRR impact \u2014 the stored slurry compensates for the supply interruption. A poreless pad has no buffer. A 15-second slurry flow interruption on a poreless pad will cause a measurable MRR step-down that may leave a wafer under-polished. Before transitioning to poreless pads, verify that your slurry delivery system can maintain flow rate variation below \u00b18% and has zero-interruption failsafe (continuous re-circulation loop, dual pump configuration, or equivalent).\n  <\/div>\n<\/div>\n\n<ul>\n  <li><strong>Slurry flow rate stability: \u00b18% or better<\/strong> \u2014 no interruptions; continuous recirculation mandatory<\/li>\n  <li><strong>Groove design: finer pitch mandatory<\/strong> \u2014 poreless pads require 1.5\u20132.5 mm groove pitch vs. 2.5\u20134.0 mm typical for porous pads, to compensate for the absent pore micro-transport<\/li>\n  <li><strong>Conditioning protocol: gentler<\/strong> \u2014 poreless pads respond more acutely to conditioner down-force changes; over-conditioning raises Ra non-uniformly and creates scratch-prone zones<\/li>\n  <li><strong>Pre-polish prep: simplified<\/strong> \u2014 no pore saturation pre-wet needed; pad is ready to polish immediately after installation and rinse<\/li>\n<\/ul>\n\n<h2 id=\"conditioning\">6. Conditioning Behavior: Key Differences<\/h2>\n<p>Conditioning behavior differs meaningfully between porous and poreless pads in three ways that process engineers must account for when transitioning:<\/p>\n\n<ul>\n  <li><strong>Break-in time:<\/strong> Poreless pads have no skin layer to remove (the skin is the pad \u2014 it is already dense). Break-in is shorter (20\u201340 dummy wafers vs. 50\u2013100 for porous pads) and MRR reaches stable state faster. However, the first few wafers after installation show slightly elevated debris as machining residue from groove cutting is flushed out.<\/li>\n  <li><strong>Conditioning debris:<\/strong> Conditioning generates less polymer debris from poreless pads because there are no pore walls to fracture. However, the debris that is generated (polymer swarf from surface abrasion) is more consistent in particle size \u2014 it does not include the irregular pore-wall fragment shapes that make porous pad debris particularly prone to embedding in soft film surfaces.<\/li>\n  <li><strong>Ra evolution with conditioning:<\/strong> Poreless pads develop lower steady-state Ra than equivalent-hardness porous pads under the same conditioning protocol, because they lack the pore-wall asperity enhancement that porous pads develop. This lower Ra means slightly lower MRR \u2014 but also slightly lower scratch generation. Conditioning intensity must be calibrated independently for poreless pads rather than carried over from a porous pad protocol.<\/li>\n<\/ul>\n\n<h2 id=\"tco\">7. Total Cost of Ownership Analysis<\/h2>\n<p>The unit price premium of poreless pads (2\u20133\u00d7 higher) is the most immediate objection to their adoption. A complete TCO analysis often tells a different story:<\/p>\n\n<div class=\"jz-table-wrap\">\n  <table class=\"jz-table\">\n    <thead><tr><th>Cost Factor<\/th><th>Porous Pad<\/th><th>Poreless Pad<\/th><th>Direction of Advantage<\/th><\/tr><\/thead>\n    <tbody>\n      <tr><td>Unit pad price (index)<\/td><td>1.0\u00d7<\/td><td class=\"lose\">2.0\u20133.0\u00d7<\/td><td>Porous<\/td><\/tr>\n      <tr><td>Lot qualification cost (engineering labor per lot)<\/td><td class=\"lose\">High \u2014 MRR verification and recipe adjustment per new lot<\/td><td class=\"win\">Low \u2014 fixed recipe; APC compatible<\/td><td>Poreless<\/td><\/tr>\n      <tr><td>Yield loss from defect excursions (particle, scratch)<\/td><td class=\"lose\">Higher defect rate \u2014 more frequent excursions from pore debris<\/td><td class=\"win\">Lower defect rate \u2014 especially for advanced node CMP steps<\/td><td>Poreless (if at advanced node)<\/td><\/tr>\n      <tr><td>Rework wafer cost<\/td><td class=\"lose\">Higher at advanced node \u2014 each defective wafer costs $1,000\u2013$10,000+<\/td><td class=\"win\">Lower \u2014 fewer rework events<\/td><td>Poreless (at advanced node)<\/td><\/tr>\n      <tr><td>Slurry consumption<\/td><td class=\"lose\">Higher \u2014 significant slurry volume absorbed into pores<\/td><td class=\"win\">Lower \u2014 groove-only transport; higher slurry utilization efficiency<\/td><td>Poreless<\/td><\/tr>\n      <tr><td>APC recipe complexity<\/td><td class=\"lose\">Higher \u2014 lot-specific Kp adjustment required<\/td><td class=\"win\">Lower \u2014 fixed recipe possible with tight Kp tolerance<\/td><td>Poreless<\/td><\/tr>\n    <\/tbody>\n  <\/table>\n<\/div>\n\n<p>For high-value advanced node processes (7 nm and below) where wafer yield is critically important, poreless pads consistently show positive TCO versus conventional porous pads despite the unit price premium. For mature-node or research applications where defect density is more relaxed and pad cost is a primary concern, conventional porous pads remain the economically rational choice.<\/p>\n\n<h2 id=\"when-to-use\">8. When to Use Each Architecture<\/h2>\n<div class=\"jz-two-col\">\n  <div class=\"jz-col-box\">\n    <h4>\u2705 Use Conventional Porous Pads When:<\/h4>\n    <ul>\n      <li>Process node \u226514 nm where defect density targets are achievable with porous pads<\/li>\n      <li>Slurry delivery system cannot guarantee &lt;\u00b18% flow rate stability<\/li>\n      <li>Research or low-volume production where pad cost per wafer dominates TCO<\/li>\n      <li>Mature-node oxide CMP where defect requirements are relaxed<\/li>\n      <li>SiC substrate intermediate polishing (Stage 2) where MRR is more important than defect density<\/li>\n      <li>Process requires tolerance to occasional slurry flow interruptions<\/li>\n    <\/ul>\n  <\/div>\n  <div class=\"jz-col-box\">\n    <h4>\u26a1 Use Poreless Pads When:<\/h4>\n    <ul>\n      <li>Process node \u22647 nm \u2014 defect density targets below 10 particles\/wafer<\/li>\n      <li>EUV-layer dielectric CMP \u2014 any particle that prints in EUV exposure is catastrophic<\/li>\n      <li>APC framework requires per-lot recipe stability without Kp adjustment<\/li>\n      <li>Cu BEOL defect excursions are driven by polymer debris, confirmed by EDX<\/li>\n      <li>3D NAND step-height CMP requiring ultra-consistent planarization from lot to lot<\/li>\n      <li>Slurry delivery system already optimized for high-flow-rate stability<\/li>\n    <\/ul>\n  <\/div>\n<\/div>\n\n<h2>9. Frequently Asked Questions<\/h2>\n<div class=\"jz-faq\">\n  <div class=\"jz-faq-item\">\n    <div class=\"jz-faq-q\">Are poreless pads compatible with standard CMP tools without modification?<\/div>\n    <div class=\"jz-faq-a\">Yes \u2014 poreless pads fit on standard CMP tools without hardware modification. The platen, carrier head, and conditioner arm are compatible. The required changes are process-side: finer-pitch groove specification (ordered from supplier), slurry flow rate stability verification and upgrading if necessary, and re-characterization of conditioning protocol. Poreless pads are available in the same form factor and sizes as conventional pads for all major tool platforms including Applied Materials Reflexion GT, Ebara FREX, and SKC\/Kctech tools.<\/div>\n  <\/div>\n  <div class=\"jz-faq-item\">\n    <div class=\"jz-faq-q\">Can poreless pads be used for SiC CMP?<\/div>\n    <div class=\"jz-faq-a\">Yes, and they are increasingly preferred for SiC final CMP (Stage 3 \u2014 epitaxial-ready surface). The ultra-low defect density of poreless pads aligns well with the stringent surface requirements for SiC power device fabrication. The main consideration for SiC is that poreless pads require even more stable slurry delivery than in silicon CMP \u2014 SiC slurry (diamond or ceria + oxidizer) has a higher tendency to agglomerate under stagnant conditions, and the absence of pore buffering makes poreless pads more vulnerable to flow interruption on SiC. Ensure slurry recirculation is maintained at all times.<\/div>\n  <\/div>\n  <div class=\"jz-faq-item\">\n    <div class=\"jz-faq-q\">How do you verify that a pad is genuinely poreless vs. just very low-porosity?<\/div>\n    <div class=\"jz-faq-a\">Verification methods in order of rigor: (1) SEM cross-section \u2014 true poreless pads show a homogeneous dense polymer matrix with no visible pores at 500\u20131000\u00d7 magnification; conventional pads show a clearly porous structure. (2) Mercury intrusion porosimetry \u2014 measures total pore volume fraction; true poreless pads show &lt;2% pore volume. (3) Water absorption test \u2014 immerse pad section in DI water for 24 hours; porous pads absorb 5\u201315% of their mass; poreless pads absorb &lt;1%. Always request SEM cross-section images and porosimetry data from your pad supplier before accepting a &#8220;poreless&#8221; claim.<\/div>\n  <\/div>\n  <div class=\"jz-faq-item\">\n    <div class=\"jz-faq-q\">Does Jizhi supply poreless CMP pads?<\/div>\n    <div class=\"jz-faq-a\">Yes. Jizhi&#8217;s poreless pad series is currently in active qualification at multiple customer fabs and is available for evaluation sampling as of April 2026. Our poreless pads use a polycarbonate-backbone PU matrix cast without microspheres, delivering pore volume fraction below 1.5% and lot-to-lot Kp CV below 3%. Available groove patterns include concentric (fine pitch 1.5\u20132.0 mm), XY grid, and spiral. Please <a href=\"https:\/\/jeez-semicon.com\/ja\/contact\/\" target=\"_blank\">contact our application engineering team<\/a> to request evaluation samples and process characterization data.<\/div>\n  <\/div>\n<\/div>\n\n<div class=\"jz-related\">\n  <div class=\"jz-related-title\">\ud83d\udcda Continue Reading<\/div>\n  <div class=\"jz-related-grid\">\n    <div class=\"jz-related-item\"><div class=\"jz-related-cat\">PILLAR<\/div><a href=\"https:\/\/jeez-semicon.com\/ja\/blog\/CMP-Polishing-Pads-The-Complete-Guide\/\" target=\"_blank\">CMP Polishing Pads: The Complete Guide<\/a><\/div>\n    <div class=\"jz-related-item\"><div class=\"jz-related-cat\">MATERIALS<\/div><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><\/div>\n    <div class=\"jz-related-item\"><div class=\"jz-related-cat\">QUALITY<\/div><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><\/div>\n    <div class=\"jz-related-item\"><div class=\"jz-related-cat\">PROCESS<\/div><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><\/div>\n    <div class=\"jz-related-item\"><div class=\"jz-related-cat\">SOURCING<\/div><a href=\"https:\/\/jeez-semicon.com\/ja\/blog\/CMP-Polishing-Pad-Brands-Comparison\/\" target=\"_blank\">CMP Polishing Pad Brands Comparison<\/a><\/div>\n    <div class=\"jz-related-item\"><div class=\"jz-related-cat\">PROCUREMENT<\/div><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><\/div>\n  <\/div>\n<\/div>\n\n<div class=\"jz-cta-banner\">\n  <h2>Porous or Poreless \u2014 Jizhi Has Both<\/h2>\n  <p>Jizhi Electronic Technology supplies conventional porous hard PU pads, soft subpads, and our advanced poreless pad series \u2014 with full characterization data and application engineering support to help you choose the right architecture for your process.<\/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\">Request Poreless Pad Samples<\/a>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Back to CMP Polishing Pads: The Complete Guide Jizhi Electronic Technology \u2014 Technology Series A detailed comparison of poreless and conventional porous CMP polishing pad architectures \u2014 examining slurry transport,  &#8230;<\/p>","protected":false},"author":1,"featured_media":1815,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[9,59],"tags":[],"class_list":["post-1785","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\/1785","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=1785"}],"version-history":[{"count":3,"href":"https:\/\/jeez-semicon.com\/ja\/wp-json\/wp\/v2\/posts\/1785\/revisions"}],"predecessor-version":[{"id":1788,"href":"https:\/\/jeez-semicon.com\/ja\/wp-json\/wp\/v2\/posts\/1785\/revisions\/1788"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/jeez-semicon.com\/ja\/wp-json\/wp\/v2\/media\/1815"}],"wp:attachment":[{"href":"https:\/\/jeez-semicon.com\/ja\/wp-json\/wp\/v2\/media?parent=1785"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jeez-semicon.com\/ja\/wp-json\/wp\/v2\/categories?post=1785"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jeez-semicon.com\/ja\/wp-json\/wp\/v2\/tags?post=1785"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}