{"id":12874,"date":"2026-01-27T08:00:00","date_gmt":"2026-01-27T13:00:00","guid":{"rendered":"https:\/\/blogs.sw.siemens.com\/podcasts\/?p=12874"},"modified":"2026-03-26T15:20:35","modified_gmt":"2026-03-26T19:20:35","slug":"sdc-verification-as-a-first-class-asset-a-deep-dive-with-chandu-challapalli","status":"publish","type":"post","link":"https:\/\/blogs.sw.siemens.com\/podcasts\/bugged-out\/sdc-verification-as-a-first-class-asset-a-deep-dive-with-chandu-challapalli\/","title":{"rendered":"SDC verification as a first-class asset: A deep dive with Chandu Challapalli"},"content":{"rendered":"<div class=\"embed-megaphone\">\n<iframe loading=\"lazy\" frameborder=\"0\" height=\"200\" scrolling=\"no\" src=\"https:\/\/playlist.megaphone.fm?e=TLFIE2086905748\" width=\"100%\"><\/iframe>\n<\/div><!-- Megaphone -->\n\n\n<p>Harry Foster talks with Chandu Challapalli, Senior Management Director at Siemens EDA, about why timing constraints must be treated as first-class verification assets. Drawing on insights from his white paper, <a href=\"https:\/\/eur01.safelinks.protection.outlook.com\/?url=https%3A%2F%2Fverificationacademy.com%2Ftopics%2Fsimulation%2Fa-guide-to-sdc-based-timing-intent-verification-with-questa-one%2F&amp;data=05%7C02%7Cjulie.weber%40siemens.com%7Cf552e6b5172a43b76a3208de51f767fe%7C38ae3bcd95794fd4addab42e1495d55a%7C1%7C0%7C639038320197368871%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&amp;sdata=8X3mEcKSw5dHOoOHFfVBv2h3pU5n3WCqkmPLjkJNxSI%3D&amp;reserved=0\" target=\"_blank\" rel=\"noopener\">A Guide to SDC-Based Timing-Intent Verification with Questa One<\/a>, Chandu explains how automated SDC verification uncovers hidden timing risks, balances under- and over-constraining, and shifts timing validation earlier in the design cycle. Learn how Questa One brings structure and automation to timing-intent verification\u2014helping teams achieve faster signoff and greater confidence in first-pass silicon success.<\/p>\n\n\n\n<p><strong>Key Discussion Points&nbsp;<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Why timing constraints matter:<\/strong>\u00a0How SDC files capture design intent\u2014and why ignoring their verification invites silicon risk.<\/li>\n\n\n\n<li><strong>What is timing-intent verification?:<\/strong>\u00a0A clear explanation of validating clocks, exceptions, and constraints against real design behavior.<\/li>\n\n\n\n<li><strong>Finding the right balance:<\/strong>\u00a0The hidden costs of under-constraining versus over-constraining timing.<\/li>\n\n\n\n<li><strong>Common SDC pitfalls:<\/strong>\u00a0Missing clocks, invalid exceptions, and legacy constraints that mask real bugs.<\/li>\n\n\n\n<li><strong>Shifting left on timing:<\/strong>\u00a0Why verifying constraints early\u2014alongside RTL\u2014reduces late-stage surprises.<\/li>\n\n\n\n<li><strong>What\u2019s next:<\/strong>\u00a0A glimpse into continuous, AI-assisted timing-intent verification and tighter frontend\/backend alignment.<\/li>\n<\/ul>\n\n\n<div class=\"bio-block row\">\n    <div class=\"col-3 order-first bio-pic\">\n        <img decoding=\"async\" src=\"https:\/\/blogs.sw.siemens.com\/wp-content\/uploads\/sites\/32\/2025\/11\/harry173.jpg\" alt=\"Harry Foster\" \/>\n    <\/div>\n    <div class=\"col-9 bio-info\">\n        <div class=\"bio-header\">\n            <h4 class=\"speakerintro\">Harry Foster<\/h4>\n        <\/div>\n        <div class=\"bio-biography\">\n            <p>Chief Scientist Verification, Siemens EDA<\/p>        <\/div>\n        <div class=\"bio-contact\">\n            <p><a href=\"https:\/\/www.linkedin.com\/in\/harry-foster-19a41a\/\" target=\"_blank\" rel=\"noopener\">Connect with Harry on LinkedIn <\/a><\/p>\n        <\/div>\n    <\/div>\n<\/div>\n\n<div class=\"bio-block row\">\n    <div class=\"col-3 order-first bio-pic\">\n        <img decoding=\"async\" src=\"https:\/\/blogs.sw.siemens.com\/wp-content\/uploads\/sites\/32\/2026\/01\/chandu.jpg\" alt=\"Chandu Challapalli\" \/>\n    <\/div>\n    <div class=\"col-9 bio-info\">\n        <div class=\"bio-header\">\n            <h4 class=\"speakerintro\">Chandu Challapalli<\/h4>\n        <\/div>\n        <div class=\"bio-biography\">\n            <p>Senior Management Director, Siemens EDA<\/p>        <\/div>\n        <div class=\"bio-contact\">\n            <p><a href=\"https:\/\/www.linkedin.com\/in\/chanduchallapalli\/\" target=\"_blank\" rel=\"noopener\">Connect with Chandu on LinkedIn <\/a><\/p>\n        <\/div>\n    <\/div>\n<\/div>\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Harry Foster talks with Chandu Challapalli, Senior Management Director at Siemens EDA, about why timing constraints must be treated as first-class verification assets.<\/p>\n","protected":false},"author":86290,"featured_media":12877,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"spanish_translation":"","french_translation":"","german_translation":"","italian_translation":"","polish_translation":"","japanese_translation":"","chinese_translation":"","footnotes":""},"categories":[1095],"tags":[1096,1117,1115,1116],"industry":[],"product":[196],"coauthors":[752],"class_list":["post-12874","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bugged-out","tag-questa-one","tag-rtl","tag-sdc-verification","tag-timing-intent-verification","product-questa"],"featured_image_url":"https:\/\/blogs.sw.siemens.com\/wp-content\/uploads\/sites\/32\/2026\/01\/Bugged_Out_podcast_1280x720_ep5.jpg","_links":{"self":[{"href":"https:\/\/blogs.sw.siemens.com\/podcasts\/wp-json\/wp\/v2\/posts\/12874","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blogs.sw.siemens.com\/podcasts\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blogs.sw.siemens.com\/podcasts\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.sw.siemens.com\/podcasts\/wp-json\/wp\/v2\/users\/86290"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.sw.siemens.com\/podcasts\/wp-json\/wp\/v2\/comments?post=12874"}],"version-history":[{"count":2,"href":"https:\/\/blogs.sw.siemens.com\/podcasts\/wp-json\/wp\/v2\/posts\/12874\/revisions"}],"predecessor-version":[{"id":12878,"href":"https:\/\/blogs.sw.siemens.com\/podcasts\/wp-json\/wp\/v2\/posts\/12874\/revisions\/12878"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blogs.sw.siemens.com\/podcasts\/wp-json\/wp\/v2\/media\/12877"}],"wp:attachment":[{"href":"https:\/\/blogs.sw.siemens.com\/podcasts\/wp-json\/wp\/v2\/media?parent=12874"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.sw.siemens.com\/podcasts\/wp-json\/wp\/v2\/categories?post=12874"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.sw.siemens.com\/podcasts\/wp-json\/wp\/v2\/tags?post=12874"},{"taxonomy":"industry","embeddable":true,"href":"https:\/\/blogs.sw.siemens.com\/podcasts\/wp-json\/wp\/v2\/industry?post=12874"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/blogs.sw.siemens.com\/podcasts\/wp-json\/wp\/v2\/product?post=12874"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/blogs.sw.siemens.com\/podcasts\/wp-json\/wp\/v2\/coauthors?post=12874"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}