{"id":30917,"date":"2011-07-01T17:10:21","date_gmt":"2011-07-01T17:10:21","guid":{"rendered":"https:\/\/silvaco.com\/%eb%b6%84%eb%a5%98%eb%90%98%ec%a7%80-%ec%95%8a%ec%9d%8c\/thermal-optimization-on-gan-hfet-using-flip-chip-and-through-wafer-via-structures\/"},"modified":"2026-10-16T08:53:37","modified_gmt":"2026-10-16T15:53:37","slug":"thermal-optimization-on-gan-hfet-using-flip-chip-and-through-wafer-via-structures","status":"publish","type":"post","link":"https:\/\/silvaco.com\/ko\/simulation-standard-ko\/thermal-optimization-on-gan-hfet-using-flip-chip-and-through-wafer-via-structures\/","title":{"rendered":"Thermal Optimization on GaN HFET Using Flip Chip and Through Wafer via Structures"},"content":{"rendered":"<h1 style=\"color: #000000; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;\">Thermal Optimization on GaN HFET Using Flip Chip and Through Wafer via Structures<\/h1>\n<p style=\"color: #000000; font-size: medium; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;\"><strong>Introduction<\/strong><\/p>\n<p style=\"color: #000000; font-size: medium; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;\">GaN heterojunction field effect transistors (HFETs) have been under extensive investigation because of their projected superb performances as high-power RF devices. The inherently high breakdown field arising from the wide bandgap guarantees not only the high power input\/output characteristics but also extreme device shrinkage which is a huge advantage for increasing the highest operation frequency. Two-dimensional electron gas (2-DEG) with the charge density ten times higher than that of GaAs-based HFET and the mobility well exceeding Si enables a very low on-state resistance indispensable to RF devices. Although the superiority of the device characteristics has been demonstrated, the self heating effect has hindered the production of high power and high speed GaN-based switching devices. This effect can be significantly reduced by the cost effective heat-sink approach (Flip chip or through wafer via)[1,2].<\/p>\n<p style=\"color: #000000; font-size: medium; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;\">In this paper, in order to understand and control the self heating effect, GaN HFET with flip chip and through wafer via (TWV) structures were simulated, and device characteristics were compared using the ATLAS 2D device simulator.<\/p>\n<p><img loading=\"lazy\" width=\"782\" height=\"1012\" src=\"https:\/\/silvaco.com\/wp-content\/uploads\/2020\/03\/simstd_Q3_2011_a3.jpg\" class=\"cleaned-enfold-image\" alt=\"\" decoding=\"async\" loading=\"lazy\" srcset=\"https:\/\/silvaco.com\/wp-content\/uploads\/2020\/03\/simstd_Q3_2011_a3.jpg 782w, https:\/\/silvaco.com\/wp-content\/uploads\/2020\/03\/simstd_Q3_2011_a3-232x300.jpg 232w, https:\/\/silvaco.com\/wp-content\/uploads\/2020\/03\/simstd_Q3_2011_a3-768x994.jpg 768w, https:\/\/silvaco.com\/wp-content\/uploads\/2020\/03\/simstd_Q3_2011_a3-545x705.jpg 545w, https:\/\/silvaco.com\/wp-content\/uploads\/2020\/03\/simstd_Q3_2011_a3-29x37.jpg 29w, https:\/\/silvaco.com\/wp-content\/uploads\/2020\/03\/simstd_Q3_2011_a3-43x55.jpg 43w, https:\/\/silvaco.com\/wp-content\/uploads\/2020\/03\/simstd_Q3_2011_a3-37x48.jpg 37w\" sizes=\"auto, (max-width: 782px) 100vw, 782px\" \/><\/p>\n<p><a href=\"https:\/\/silvaco.com\/dynamicweb\/jsp\/downloads\/DownloadDocStepsAction.do?req=download&#038;nm=simstd_Q3_2011_a3.pdf\" class=\"BGT-btn\" target=\"_blank\" rel=\"noopener noreferrer\">Download Simulation Standard<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>GaN heterojunction field effect transistors (HFETs) have been under extensive investigation because of their projected superb performances as high-power RF devices. The inherently high breakdown field arising from the wide bandgap guarantees not only the high power input\/output characteristics but also extreme device shrinkage which is a huge advantage for increasing the highest operation frequency. Two-dimensional electron gas (2-DEG) with the charge density ten times higher than that of GaAs-based HFET and the mobility well exceeding Si enables a very low on-state resistance indispensable to RF devices. Although the superiority of the device characteristics has been demonstrated, the self heating effect has hindered the production of high power and high speed GaN-based switching devices. This effect can be significantly reduced by the cost effective heat-sink approach (Flip chip or through wafer via)[1,2].<\/p>\n","protected":false},"author":5,"featured_media":19683,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[7486],"tags":[],"class_list":["post-30917","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-simulation-standard-ko","entry","has-media"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.7 (Yoast SEO v28.7) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Thermal Optimization on GaN HFET Using Flip Chip and Through Wafer via Structures - Silvaco<\/title>\n<meta name=\"description\" content=\"GaN heterojunction field effect transistors (HFETs) have been under extensive investigation because of their projected superb performances as high-power RF devices.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/silvaco.com\/ko\/simulation-standard-ko\/thermal-optimization-on-gan-hfet-using-flip-chip-and-through-wafer-via-structures\/\" \/>\n<meta property=\"og:locale\" content=\"ko_KR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Thermal Optimization on GaN HFET Using Flip Chip and Through Wafer via Structures\" \/>\n<meta property=\"og:description\" content=\"GaN heterojunction field effect transistors (HFETs) have been under extensive investigation because of their projected superb performances as high-power RF devices.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/silvaco.com\/ko\/simulation-standard-ko\/thermal-optimization-on-gan-hfet-using-flip-chip-and-through-wafer-via-structures\/\" \/>\n<meta property=\"og:site_name\" content=\"Silvaco\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/SilvacoSoftware\/\" \/>\n<meta property=\"article:published_time\" content=\"2011-07-01T17:10:21+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-10-16T15:53:37+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/silvaco.com\/wp-content\/uploads\/2020\/03\/simstd_Q3_2011_a3.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"782\" \/>\n\t<meta property=\"og:image:height\" content=\"1012\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Ingrid Schwarz\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@SilvacoSoftware\" \/>\n<meta name=\"twitter:site\" content=\"@SilvacoSoftware\" \/>\n<meta name=\"twitter:label1\" content=\"\uae00\uc4f4\uc774\" \/>\n\t<meta name=\"twitter:data1\" content=\"Ingrid Schwarz\" \/>\n\t<meta name=\"twitter:label2\" content=\"\uc608\uc0c1 \ub418\ub294 \ud310\ub3c5 \uc2dc\uac04\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/silvaco.com\\\/ko\\\/simulation-standard-ko\\\/thermal-optimization-on-gan-hfet-using-flip-chip-and-through-wafer-via-structures\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/silvaco.com\\\/ko\\\/simulation-standard-ko\\\/thermal-optimization-on-gan-hfet-using-flip-chip-and-through-wafer-via-structures\\\/\"},\"author\":{\"name\":\"Ingrid Schwarz\",\"@id\":\"https:\\\/\\\/silvaco.com\\\/#\\\/schema\\\/person\\\/f85f880bc8a7ce823b36a9072e1f0a29\"},\"headline\":\"Thermal Optimization on GaN HFET Using Flip Chip and Through Wafer via Structures\",\"datePublished\":\"2011-07-01T17:10:21+00:00\",\"dateModified\":\"2026-10-16T15:53:37+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/silvaco.com\\\/ko\\\/simulation-standard-ko\\\/thermal-optimization-on-gan-hfet-using-flip-chip-and-through-wafer-via-structures\\\/\"},\"wordCount\":200,\"image\":{\"@id\":\"https:\\\/\\\/silvaco.com\\\/ko\\\/simulation-standard-ko\\\/thermal-optimization-on-gan-hfet-using-flip-chip-and-through-wafer-via-structures\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/silvaco.com\\\/wp-content\\\/uploads\\\/2020\\\/03\\\/simstd_Q3_2011_a3.jpg\",\"articleSection\":[\"Simulation Standard\"],\"inLanguage\":\"ko-KR\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/silvaco.com\\\/ko\\\/simulation-standard-ko\\\/thermal-optimization-on-gan-hfet-using-flip-chip-and-through-wafer-via-structures\\\/\",\"url\":\"https:\\\/\\\/silvaco.com\\\/ko\\\/simulation-standard-ko\\\/thermal-optimization-on-gan-hfet-using-flip-chip-and-through-wafer-via-structures\\\/\",\"name\":\"Thermal Optimization on GaN HFET Using Flip Chip and Through Wafer via Structures - 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