{"id":919,"date":"2025-12-12T16:38:04","date_gmt":"2025-12-12T08:38:04","guid":{"rendered":"https:\/\/jeez-semicon.com\/?post_type=avada_faq&#038;p=919"},"modified":"2025-12-12T16:43:41","modified_gmt":"2025-12-12T08:43:41","slug":"what-special-properties-are-required-for-finishing-pads-when-processing-third-generation-semiconductor-materials-like-gallium-nitride-gan","status":"publish","type":"avada_faq","link":"https:\/\/jeez-semicon.com\/fr\/faq-items\/what-special-properties-are-required-for-finishing-pads-when-processing-third-generation-semiconductor-materials-like-gallium-nitride-gan\/","title":{"rendered":"Quelles sont les propri\u00e9t\u00e9s particuli\u00e8res requises pour les tampons de finition lors du traitement de mat\u00e9riaux semi-conducteurs de troisi\u00e8me g\u00e9n\u00e9ration tels que le nitrure de gallium (GaN) ?"},"content":{"rendered":"<p class=\"ds-markdown-paragraph\">Trois conditions particuli\u00e8res doivent \u00eatre remplies :<\/p>\n<ul>\n<li>\n<p class=\"ds-markdown-paragraph\"><strong>Polissage \u00e0 faible contrainte<\/strong>: Le module \u00e9lastique du substrat doit correspondre \u00e0 la nature fragile du GaN (t\u00e9nacit\u00e9 \u00e0 la rupture &lt; 2 MPa-m\u00b9\/\u00b2) pour \u00e9viter les microfissures.<\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><strong>R\u00e9sistance aux environnements fortement alcalins<\/strong>: Le polyur\u00e9thane modifi\u00e9 au PTFE permet un fonctionnement stable &gt; 200 heures dans des boues \u00e0 base de KOH avec un pH &gt; 12<\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><strong>Gestion thermique am\u00e9lior\u00e9e<\/strong>: Conductivit\u00e9 thermique &gt; 0,5 W\/m-K pour une dissipation rapide de la chaleur de frottement localis\u00e9e (le GaN est sensible \u00e0 la temp\u00e9rature).<br \/>\nJizhi Electronics\u2019\u00a0<strong>S\u00e9rie de tampons sp\u00e9cifiques au GaN<\/strong>\u00a0a \u00e9t\u00e9 valid\u00e9 dans la production de masse de plaquettes de 6 pouces, avec un contr\u00f4le du gauchissement &lt; 50 \u00b5m.<\/p>\n<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Three special requirements must be met: Low-stress polishing: Elastic substrate modulus must match GaN&#8217;s brittle nature (fracture toughness &lt; 2 MPa\u00b7m\u00b9\/\u00b2) to prevent micro-cracks Resistance to strong alkaline environments: PTFE-modified  &#8230;<\/p>","protected":false},"author":1,"featured_media":925,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"faq_category":[],"class_list":["post-919","avada_faq","type-avada_faq","status-publish","format-standard","has-post-thumbnail","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/jeez-semicon.com\/fr\/wp-json\/wp\/v2\/avada_faq\/919","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jeez-semicon.com\/fr\/wp-json\/wp\/v2\/avada_faq"}],"about":[{"href":"https:\/\/jeez-semicon.com\/fr\/wp-json\/wp\/v2\/types\/avada_faq"}],"author":[{"embeddable":true,"href":"https:\/\/jeez-semicon.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jeez-semicon.com\/fr\/wp-json\/wp\/v2\/comments?post=919"}],"version-history":[{"count":1,"href":"https:\/\/jeez-semicon.com\/fr\/wp-json\/wp\/v2\/avada_faq\/919\/revisions"}],"predecessor-version":[{"id":920,"href":"https:\/\/jeez-semicon.com\/fr\/wp-json\/wp\/v2\/avada_faq\/919\/revisions\/920"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/jeez-semicon.com\/fr\/wp-json\/wp\/v2\/media\/925"}],"wp:attachment":[{"href":"https:\/\/jeez-semicon.com\/fr\/wp-json\/wp\/v2\/media?parent=919"}],"wp:term":[{"taxonomy":"faq_category","embeddable":true,"href":"https:\/\/jeez-semicon.com\/fr\/wp-json\/wp\/v2\/faq_category?post=919"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}