{"id":1715,"date":"2022-01-18T09:00:04","date_gmt":"2022-01-18T14:00:04","guid":{"rendered":"https:\/\/blogs.sw.siemens.com\/xpedition\/?p=1715"},"modified":"2026-03-27T09:47:50","modified_gmt":"2026-03-27T13:47:50","slug":"3d-ic-takes-a-village-but-must-start-with-a-netlist","status":"publish","type":"post","link":"https:\/\/blogs.sw.siemens.com\/electronic-systems-design\/2022\/01\/18\/3d-ic-takes-a-village-but-must-start-with-a-netlist\/","title":{"rendered":"3D IC takes a village but must start with a netlist"},"content":{"rendered":"\n<p>In today\u2019s 3D IC designs, accurately capturing the complete design intent (i.e., the connectivity) of dies, silicon interposers, organic substrates and discrete components is crucial. Without a \u201cgolden\u201d connectivity model it is very difficult to ensure a \u201cclean\u201d 3D IC from an assembly verification standpoint (especially LVS) before manufacturing.<\/p>\n\n\n\n<p>Heterogeneous multi-substrate 3D ICs are especially challenging. Silicon interposers are usually owned by an IC design team with an IC <em>design<\/em> background and using IC design EDA tools and formats. Meanwhile, the organic substrate is typically owned by the package design team who have a traditional package design background and use package integration tools and formats.<\/p>\n\n\n\n<p>In terms of design formats, the organic substrate connectivity is usually captured in a CSV file that basically includes the package bump locations, pin names and numbers, and net names. Meanwhile, silicon interposer connectivity is usually captured as a Verilog netlist. Consuming both formats require an EDA aggregation platform that allows users to modify and assign connectivity, and, eventually, combine the different netlists and generate a single system-level netlist that drives 3D IC assembly verification.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-style-default\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"450\" src=\"https:\/\/blogs.sw.siemens.com\/xpedition\/wp-content\/uploads\/sites\/53\/2022\/01\/full-assembly-verification-flow-002-1024x450.jpg\" alt=\"\" class=\"wp-image-1716\" srcset=\"https:\/\/blogs.sw.siemens.com\/wp-content\/uploads\/sites\/65\/2022\/01\/full-assembly-verification-flow-002-1024x450.jpg 1024w, https:\/\/blogs.sw.siemens.com\/wp-content\/uploads\/sites\/65\/2022\/01\/full-assembly-verification-flow-002-600x263.jpg 600w, https:\/\/blogs.sw.siemens.com\/wp-content\/uploads\/sites\/65\/2022\/01\/full-assembly-verification-flow-002-768x337.jpg 768w, https:\/\/blogs.sw.siemens.com\/wp-content\/uploads\/sites\/65\/2022\/01\/full-assembly-verification-flow-002-900x395.jpg 900w, https:\/\/blogs.sw.siemens.com\/wp-content\/uploads\/sites\/65\/2022\/01\/full-assembly-verification-flow-002.jpg 1403w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption><strong> Full Assembly Verification Flow<\/strong> <br><\/figcaption><\/figure>\n\n\n\n<p>In the white paper, <a href=\"https:\/\/resources.sw.siemens.com\/en-US\/white-paper-system-level-connectivity-management-and-verification-of-3d-ic-heterogeneous\" target=\"_blank\" rel=\"noreferrer noopener\"><em>System-level connectivity management and verification of 3D\u00a0IC heterogeneous assemblies<\/em><\/a><em>,<\/em> I discuss a workflow that lets the package architect aggregate, construct. and manage a system-level gold netlist that drives all downstream design processes. The paper will give you more insight into how Xpedition Substrate Integrator (xSI) and Calibre 3DSTACK, as part of the larger Siemens Xcelerator portfolio, will help you design tomorrow\u2019s 3D-IC devices today.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In today\u2019s 3D IC designs, accurately capturing the complete design intent (i.e., the connectivity) of dies, silicon interposers, organic substrates&#8230;<\/p>\n","protected":false},"author":82986,"featured_media":1729,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"spanish_translation":"","french_translation":"","german_translation":"true","italian_translation":"","polish_translation":"","japanese_translation":"true","chinese_translation":"true","footnotes":""},"categories":[13],"tags":[150,160],"industry":[],"product":[],"coauthors":[1682],"class_list":["post-1715","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","tag-thought-leadership","tag-xpedition"],"featured_image_url":"https:\/\/blogs.sw.siemens.com\/wp-content\/uploads\/sites\/65\/2022\/01\/interposer-floorplan-view_640x360-1.jpg","_links":{"self":[{"href":"https:\/\/blogs.sw.siemens.com\/electronic-systems-design\/wp-json\/wp\/v2\/posts\/1715","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blogs.sw.siemens.com\/electronic-systems-design\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blogs.sw.siemens.com\/electronic-systems-design\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.sw.siemens.com\/electronic-systems-design\/wp-json\/wp\/v2\/users\/82986"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.sw.siemens.com\/electronic-systems-design\/wp-json\/wp\/v2\/comments?post=1715"}],"version-history":[{"count":1,"href":"https:\/\/blogs.sw.siemens.com\/electronic-systems-design\/wp-json\/wp\/v2\/posts\/1715\/revisions"}],"predecessor-version":[{"id":10855,"href":"https:\/\/blogs.sw.siemens.com\/electronic-systems-design\/wp-json\/wp\/v2\/posts\/1715\/revisions\/10855"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blogs.sw.siemens.com\/electronic-systems-design\/wp-json\/wp\/v2\/media\/1729"}],"wp:attachment":[{"href":"https:\/\/blogs.sw.siemens.com\/electronic-systems-design\/wp-json\/wp\/v2\/media?parent=1715"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.sw.siemens.com\/electronic-systems-design\/wp-json\/wp\/v2\/categories?post=1715"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.sw.siemens.com\/electronic-systems-design\/wp-json\/wp\/v2\/tags?post=1715"},{"taxonomy":"industry","embeddable":true,"href":"https:\/\/blogs.sw.siemens.com\/electronic-systems-design\/wp-json\/wp\/v2\/industry?post=1715"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/blogs.sw.siemens.com\/electronic-systems-design\/wp-json\/wp\/v2\/product?post=1715"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/blogs.sw.siemens.com\/electronic-systems-design\/wp-json\/wp\/v2\/coauthors?post=1715"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}