It’s never too late to fix a design problem.\u00a0 Well, maybe if the product is shipping, that might be classified as “too late”.\u00a0 But during the design phase, whether you’ve laid out your board or not, it’s a good time to make sure there are no design issues.\u00a0 When it comes to signal integrity, that means performing pre-layout or post-layout simulations.\u00a0 I think most experts agree that pre-layout simulations are the best time to do signal integrity.\u00a0 There those, however, that feel pre-layout simulations are a lot of time wasted on “what might be”, but the counter-argument is that if you don’t simulate, how do you know what constraints to apply to your board layout as it is being layed out.\u00a0 I say as long as you do\u00a0EITHER before the product ships, you’ve done well.\u00a0 But, when it comes to getting products out in the fastest and most efficient manner, a mixture of both pre-layout and post-layout simulation will best suit your needs.<\/p>\n
What’s the difference?\u00a0 Well, other than\u00a0the obvious fact that post-route simulations are done after layout, I would classify the main difference as the fact that pre-layout simulation is aimed more at exploring a solution space and creating design constraints, while post-layout is aimed at verifying that those constraints were met.\u00a0 For a more in-depth discussion on the differences, take a look at this article in Electronic Design magazine: It’s never too late to fix a design problem.\u00a0 Well, maybe if the product is shipping, that might be classified…<\/p>\n","protected":false},"author":71672,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"spanish_translation":"","french_translation":"","german_translation":"","italian_translation":"","polish_translation":"","japanese_translation":"","chinese_translation":"","footnotes":""},"categories":[13],"tags":[1063,1097,1101,137,139],"industry":[],"product":[],"coauthors":[],"class_list":["post-528","post","type-post","status-publish","format-standard","hentry","category-news","tag-hyperlynx","tag-post-layout","tag-pre-layout","tag-signal-integrity","tag-simulation"],"_links":{"self":[{"href":"https:\/\/blogs.sw.siemens.com\/electronic-systems-design\/wp-json\/wp\/v2\/posts\/528","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\/71672"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.sw.siemens.com\/electronic-systems-design\/wp-json\/wp\/v2\/comments?post=528"}],"version-history":[{"count":1,"href":"https:\/\/blogs.sw.siemens.com\/electronic-systems-design\/wp-json\/wp\/v2\/posts\/528\/revisions"}],"predecessor-version":[{"id":10321,"href":"https:\/\/blogs.sw.siemens.com\/electronic-systems-design\/wp-json\/wp\/v2\/posts\/528\/revisions\/10321"}],"wp:attachment":[{"href":"https:\/\/blogs.sw.siemens.com\/electronic-systems-design\/wp-json\/wp\/v2\/media?parent=528"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.sw.siemens.com\/electronic-systems-design\/wp-json\/wp\/v2\/categories?post=528"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.sw.siemens.com\/electronic-systems-design\/wp-json\/wp\/v2\/tags?post=528"},{"taxonomy":"industry","embeddable":true,"href":"https:\/\/blogs.sw.siemens.com\/electronic-systems-design\/wp-json\/wp\/v2\/industry?post=528"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/blogs.sw.siemens.com\/electronic-systems-design\/wp-json\/wp\/v2\/product?post=528"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/blogs.sw.siemens.com\/electronic-systems-design\/wp-json\/wp\/v2\/coauthors?post=528"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\nhttp:\/\/electronicdesign.com\/article\/eda\/whats-difference-prelayout-postlayout-pcb-simulation-73640<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"