{"id":4240,"date":"2026-01-12T07:57:34","date_gmt":"2026-01-12T13:57:34","guid":{"rendered":"https:\/\/ykim.synology.me\/wordpress\/?p=4240"},"modified":"2026-01-12T09:20:17","modified_gmt":"2026-01-12T15:20:17","slug":"comparison-of-multi-project-chip-mpc-vs-multi-project-wafer-mpw","status":"publish","type":"post","link":"https:\/\/ykim.synology.me\/wordpress\/comparison-of-multi-project-chip-mpc-vs-multi-project-wafer-mpw-4240\/","title":{"rendered":"Comparison of Multi\u2011Project Chip (MPC) Vs. Multi\u2011Project Wafer (MPW)"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\"><strong>Abstract<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Multi\u2011Project Chip (MPC) and Multi\u2011Project Wafer (MPW) fabrication models are cost\u2011sharing semiconductor manufacturing arrangements that enable multiple designs to be produced within a single wafer run. Although both approaches reduce mask and wafer costs, they differ significantly in structure, risk, flexibility, and intended use. This summary synthesizes authoritative descriptions from semiconductor manufacturing literature and online technical references to provide a concise comparison of MPC and MPW.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>1. Introduction<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">MPC and MPW were developed to allow customers to <strong>share tooling and wafer fabrication costs<\/strong> across multiple designs <a href=\"https:\/\/en.wikipedia.org\/wiki\/Multi-project_wafer_service\" target=\"_blank\" rel=\"noopener\">Wikipedia<\/a> <a href=\"https:\/\/grokipedia.com\/page\/Multi-project_wafer_service\" target=\"_blank\" rel=\"noopener\">grokipedia.com<\/a>. These approaches are widely used in prototyping, research, and early\u2011stage product development, where full mask\u2011set costs are prohibitive. MPW originated in the 1970s to reduce NRE and accelerate time\u2011to\u2011market for IC prototyping <a href=\"https:\/\/anysilicon.com\/multi-project-wafer\/\" target=\"_blank\" rel=\"noopener\">AnySilicon<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>2. Definitions<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>2.1 Multi\u2011Project Chip (MPC)<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">An MPC integrates <strong>multiple IC designs into a single composite chip<\/strong>, and this composite chip is <strong>repeated across the entire wafer<\/strong> during manufacturing <a href=\"https:\/\/en.wikipedia.org\/wiki\/Multi-project_wafer_service\" target=\"_blank\" rel=\"noopener\">Wikipedia<\/a> <a href=\"https:\/\/grokipedia.com\/page\/Multi-project_wafer_service\" target=\"_blank\" rel=\"noopener\">grokipedia.com<\/a>. Each die on the wafer contains the same combination of designs.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>2.2 Multi\u2011Project Wafer (MPW)<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">An MPW aggregates <strong>multiple independent chip designs<\/strong> on a single wafer, each occupying its own die area, with potentially different quantities per wafer <a href=\"https:\/\/en.wikipedia.org\/wiki\/Multi-project_wafer_service\" target=\"_blank\" rel=\"noopener\">Wikipedia<\/a> <a href=\"https:\/\/grokipedia.com\/page\/Multi-project_wafer_service\" target=\"_blank\" rel=\"noopener\">grokipedia.com<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>3. Purpose and Use Cases<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>MPC<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Used for <strong>manufacturing acceptance<\/strong>, <strong>process characterization<\/strong>, and <strong>multi\u2011design experiments<\/strong>, often including PCM (process control monitor) structures <a href=\"https:\/\/en.wikipedia.org\/wiki\/Multi-project_wafer_service\" target=\"_blank\" rel=\"noopener\">Wikipedia<\/a>.<\/li>\n\n\n\n<li>Suitable when multiple small designs or test structures must be evaluated under identical process conditions.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>MPW<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Designed for <strong>ASIC prototyping<\/strong>, <strong>low\u2011volume production<\/strong>, and <strong>research<\/strong>, enabling cost\u2011effective fabrication for startups, universities, and IP vendors <a href=\"https:\/\/anysilicon.com\/multi-project-wafer\/\" target=\"_blank\" rel=\"noopener\">AnySilicon<\/a>.<\/li>\n\n\n\n<li>Supports diverse chip sizes and pad configurations.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>4. Mask and Layout Structure<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>MPC<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>One mask layout contains a <strong>single composite chip<\/strong> with all designs embedded.<\/li>\n\n\n\n<li>The composite chip is tiled across the wafer, producing roughly equal numbers of each design <a href=\"https:\/\/en.wikipedia.org\/wiki\/Multi-project_wafer_service\" target=\"_blank\" rel=\"noopener\">Wikipedia<\/a>.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>MPW<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The mask contains <strong>multiple separate chip layouts<\/strong>, enabling different die sizes and quantities per wafer <a href=\"https:\/\/en.wikipedia.org\/wiki\/Multi-project_wafer_service\" target=\"_blank\" rel=\"noopener\">Wikipedia<\/a> <a href=\"https:\/\/grokipedia.com\/page\/Multi-project_wafer_service\" target=\"_blank\" rel=\"noopener\">grokipedia.com<\/a>.<\/li>\n\n\n\n<li>Enabled by modern photolithography and multi\u2011layer mask (MLM) techniques <a href=\"https:\/\/koalgun76.tistory.com\/271\" target=\"_blank\" rel=\"noopener\">koalgun76.tistory.com<\/a>.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>5. Testing Characteristics<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>MPC<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>All designs share one die; PCM structures are often included for process quality verification <a href=\"https:\/\/en.wikipedia.org\/wiki\/Multi-project_wafer_service\" target=\"_blank\" rel=\"noopener\">Wikipedia<\/a>.<\/li>\n\n\n\n<li>Testing is integrated but less isolated\u2014failures may be harder to attribute to individual blocks.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>MPW<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Each chip has its own pad ring and test strategy, enabling <strong>independent testing<\/strong> of each design.<\/li>\n\n\n\n<li>Ideal for validating standalone ASICs.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>6. Risk Profile<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>MPC<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>High coupling risk<\/strong>: a defect in any block affects the entire composite chip, and thus every die on the wafer <a href=\"https:\/\/en.wikipedia.org\/wiki\/Multi-project_wafer_service\" target=\"_blank\" rel=\"noopener\">Wikipedia<\/a>.<\/li>\n\n\n\n<li>Useful for process monitoring but less robust for product\u2011level prototyping.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>MPW<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Low coupling risk<\/strong>: each chip is isolated; one design\u2019s failure does not impact others <a href=\"https:\/\/en.wikipedia.org\/wiki\/Multi-project_wafer_service\" target=\"_blank\" rel=\"noopener\">Wikipedia<\/a> <a href=\"https:\/\/grokipedia.com\/page\/Multi-project_wafer_service\" target=\"_blank\" rel=\"noopener\">grokipedia.com<\/a>.<\/li>\n\n\n\n<li>Preferred for commercial prototyping.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>7. Cost Structure<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>MPC<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Extremely cost\u2011efficient when many small designs share one composite chip; mask area is used efficiently <a href=\"https:\/\/en.wikipedia.org\/wiki\/Multi-project_wafer_service\" target=\"_blank\" rel=\"noopener\">Wikipedia<\/a>.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>MPW<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Reduces mask\u2011set cost by sharing expensive photomasks among many customers <a href=\"https:\/\/anysilicon.com\/multi-project-wafer\/\" target=\"_blank\" rel=\"noopener\">AnySilicon<\/a>.<\/li>\n\n\n\n<li>Slightly higher per\u2011design cost than MPC due to independent die footprints.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>8. Typical Users<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>MPC<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Foundry R&amp;D teams<\/li>\n\n\n\n<li>IP developers<\/li>\n\n\n\n<li>Process characterization groups<\/li>\n\n\n\n<li>Mixed\u2011signal\/analog researchers<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>MPW<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Startups and fabless companies<\/li>\n\n\n\n<li>Universities and research institutions (e.g., MOSIS, Europractice)<\/li>\n\n\n\n<li>IP vendors<\/li>\n\n\n\n<li>Customers using foundry shuttle programs<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>9. Conclusion<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">MPC and MPW both enable cost\u2011effective semiconductor fabrication, but they serve distinct purposes. MPC is optimized for <strong>multi\u2011design integration and process characterization<\/strong>, while MPW is the industry standard for <strong>ASIC prototyping and low\u2011volume production<\/strong>. Their differences in risk, flexibility, and testability make them complementary tools in modern semiconductor development.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>References<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/en.wikipedia.org\/wiki\/Multi-project_wafer_service\" target=\"_blank\" rel=\"noopener\">Wikipedia<\/a> <em>Multi\u2011Project Wafer Service<\/em>, Wikipedia<br><a href=\"https:\/\/grokipedia.com\/page\/Multi-project_wafer_service\" target=\"_blank\" rel=\"noopener\">grokipedia.com<\/a> <em>Multi\u2011Project Wafer Service<\/em>, Grokipedia<br><a href=\"https:\/\/anysilicon.com\/multi-project-wafer\/\" target=\"_blank\" rel=\"noopener\">AnySilicon<\/a> <em>Multi\u2011Project Wafer \u2013 History, Overview &amp; Booking System<\/em>, AnySilicon<br><a href=\"https:\/\/koalgun76.tistory.com\/271\" target=\"_blank\" rel=\"noopener\">koalgun76.tistory.com<\/a> <em>MPC\/MPW Service Overview<\/em>, Koalgun Technical Blog<br><a href=\"https:\/\/www.nature.com\/articles\/s41586-024-07306-2.pdf\" target=\"_blank\" rel=\"noopener\">Nature<\/a> <em>Multi\u2011Project Wafers for Flexible Thin\u2011Film Electronics<\/em>, Nature (2024)<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"354\" src=\"https:\/\/ykim.synology.me\/wordpress\/wp-content\/uploads\/2025\/12\/20251211-Copilot-logo.png\" alt=\"\" class=\"wp-image-2944\" style=\"width:auto;height:66px\" srcset=\"https:\/\/ykim.synology.me\/wordpress\/wp-content\/uploads\/2025\/12\/20251211-Copilot-logo.png 1000w, https:\/\/ykim.synology.me\/wordpress\/wp-content\/uploads\/2025\/12\/20251211-Copilot-logo-300x106.png 300w, https:\/\/ykim.synology.me\/wordpress\/wp-content\/uploads\/2025\/12\/20251211-Copilot-logo-768x272.png 768w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n<div style='text-align:center' class='yasr-auto-insert-overall'><\/div><div style='text-align:center' class='yasr-auto-insert-visitor'><\/div>","protected":false},"excerpt":{"rendered":"<p>Abstract Multi\u2011Project Chip (MPC) and Multi\u2011Project Wafer (MPW) fabrication models are cost\u2011sharing semiconductor manufacturing arrangements that enable multiple designs to be produced within a single wafer run. Although both approaches reduce mask and wafer costs, they differ significantly in structure, risk, flexibility, and intended use. This summary synthesizes authoritative descriptions from semiconductor manufacturing literature and&#8230;<\/p>\n","protected":false},"author":4,"featured_media":4242,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"_kadence_starter_templates_imported_post":false,"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","yasr_overall_rating":0,"yasr_post_is_review":"","yasr_auto_insert_disabled":"","yasr_review_type":"","fifu_image_url":"","fifu_image_alt":"","iawp_total_views":0,"footnotes":""},"categories":[4],"tags":[],"class_list":["post-4240","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-semiconductor-slug"],"yasr_visitor_votes":{"stars_attributes":{"read_only":false,"span_bottom":false},"number_of_votes":0,"sum_votes":0},"jetpack_featured_media_url":"https:\/\/ykim.synology.me\/wordpress\/wp-content\/uploads\/2026\/01\/20260112-Multi-Project-Wafer.jpg","_links":{"self":[{"href":"https:\/\/ykim.synology.me\/wordpress\/wp-json\/wp\/v2\/posts\/4240","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ykim.synology.me\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ykim.synology.me\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ykim.synology.me\/wordpress\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/ykim.synology.me\/wordpress\/wp-json\/wp\/v2\/comments?post=4240"}],"version-history":[{"count":1,"href":"https:\/\/ykim.synology.me\/wordpress\/wp-json\/wp\/v2\/posts\/4240\/revisions"}],"predecessor-version":[{"id":4241,"href":"https:\/\/ykim.synology.me\/wordpress\/wp-json\/wp\/v2\/posts\/4240\/revisions\/4241"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ykim.synology.me\/wordpress\/wp-json\/wp\/v2\/media\/4242"}],"wp:attachment":[{"href":"https:\/\/ykim.synology.me\/wordpress\/wp-json\/wp\/v2\/media?parent=4240"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ykim.synology.me\/wordpress\/wp-json\/wp\/v2\/categories?post=4240"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ykim.synology.me\/wordpress\/wp-json\/wp\/v2\/tags?post=4240"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}