{"id":426429,"date":"2025-03-21T09:35:45","date_gmt":"2025-03-21T09:35:45","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/how-assign-the-thermal-resistance-correctly-in-aedt-icepak\/"},"modified":"2025-03-27T10:28:40","modified_gmt":"2025-03-27T10:28:40","slug":"how-assign-the-thermal-resistance-correctly-in-aedt-icepak","status":"answered","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/how-assign-the-thermal-resistance-correctly-in-aedt-icepak\/","title":{"rendered":"How assign the thermal resistance correctly in AEDT Icepak"},"content":{"rendered":"<p>&lt;p&gt;I have a QFN package cad model made in solidworks. The die is disspating heat of 100 W and the junction to case resistance is 0.5 &deg;C\/W. I tried assigning the top surface of die and bottom surface of thermal pad as network model and gave the thermal resistance. But, everytime I do that the solution divereges. What can be the solution for this problem and if anyone could share a how a network model will be it could be helpful.&lt;br&gt;&lt;br&gt;Thank you&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-426429","topic","type-topic","status-answered","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"I have a QFN package cad model made in solidworks. The die is disspating heat of 100 W and the junction to case resistance is 0.5 \u00b0C\/W. I tried assigning the top surface of die and bottom surface of thermal pad as network model and gave the thermal resistance. But, everytime I do that the\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/how-assign-the-thermal-resistance-correctly-in-aedt-icepak\/\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 4.9.10\" \/>\n\t\t<meta property=\"og:locale\" content=\"en_US\" \/>\n\t\t<meta property=\"og:site_name\" content=\"Ansys Learning Forum | Ansys Innovation Space\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"How assign the thermal resistance correctly in AEDT Icepak | Ansys Learning Forum\" \/>\n\t\t<meta property=\"og:description\" content=\"I have a QFN package cad model made in solidworks. The die is disspating heat of 100 W and the junction to case resistance is 0.5 \u00b0C\/W. I tried assigning the top surface of die and bottom surface of thermal pad as network model and gave the thermal resistance. 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But, everytime I do that the"},"aioseo_meta_data":[],"aioseo_breadcrumb":"<div class=\"aioseo-breadcrumbs\"><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/innovationspace.ansys.com\/forum\" title=\"Home\">Home<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/innovationspace.ansys.com\/forum\/topics\/\" title=\"Topics\">Topics<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\tHow assign the thermal resistance correctly in AEDT Icepak\n\t\t<\/span><\/div>","aioseo_breadcrumb_json":[{"label":"Home","link":"https:\/\/innovationspace.ansys.com\/forum"},{"label":"Topics","link":"https:\/\/innovationspace.ansys.com\/forum\/topics\/"},{"label":"How assign the thermal resistance correctly in AEDT Icepak","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/how-assign-the-thermal-resistance-correctly-in-aedt-icepak\/"}],"acf":[],"custom_fields":[{"0":{"_bbp_forum_id":["27793"],"_bbp_topic_id":["426429"],"_bbp_subscription":["531878","28969"],"_bbp_author_ip":["103.158.43.18"],"_bbp_last_reply_id":["427066"],"_bbp_last_active_id":["427066"],"_bbp_last_active_time":["2025-03-27 10:27:19"],"_bbp_reply_count":["2"],"_bbp_reply_count_hidden":["0"],"_bbp_voice_count":["2"],"_bbp_engagement":["531878","28969"],"_btv_view_count":["450"],"_bbp_topic_status":["answered"]},"test":"vishalgnair1812gmail-com"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/426429","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/types\/topic"}],"version-history":[{"count":1,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/426429\/revisions"}],"predecessor-version":[{"id":427067,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/426429\/revisions\/427067"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=426429"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}