{"id":25929,"date":"2018-10-11T14:53:13","date_gmt":"2018-10-11T12:53:13","guid":{"rendered":"https:\/\/www.iemn.fr\/?page_id=25929"},"modified":"2019-02-11T15:00:26","modified_gmt":"2019-02-11T13:00:26","slug":"temperature-monitoring","status":"publish","type":"page","link":"https:\/\/www.iemn.fr\/en\/la-recherche\/les-groupes\/groupe-puissance\/research\/temperature-monitoring","title":{"rendered":"Temperature monitoring of operating AlGaN\/GaN HEMTs"},"content":{"rendered":"<div id='layer_slider_1'  class='avia-layerslider main_color avia-shadow  avia-builder-el-0  el_before_av_submenu  avia-builder-el-first  container_wrap sidebar_right'  style='height: 261px;'  ><div id=\"layerslider_44_1ucz54l61a0pp\" data-ls-slug=\"homepageslider\" class=\"ls-wp-container fitvidsignore ls-selectable\" style=\"width:1140px;height:260px;margin:0 auto;margin-bottom: 0px;\"><div class=\"ls-slide\" data-ls=\"bgposition:50% 50%;duration:6000;transition2d:5;\"><img loading=\"lazy\" decoding=\"async\" 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https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/sliders_groupe_puissance3-705x73.jpg 705w\" sizes=\"auto, (max-width: 2600px) 100vw, 2600px\" \/><ls-layer style=\"font-size:14px;text-align:left;font-style:normal;text-decoration:none;text-transform:none;font-weight:700;letter-spacing:0px;background-position:0% 0%;background-repeat:no-repeat;mix-blend-mode:normal;top:231px;left:0px;height:30px;width:360px;line-height:32px;color:#ffffff;border-radius:6px 6px 6px 6px;padding-left:50px;background-color:rgba(0, 0, 0, 0.57);\" class=\"ls-l ls-ib-icon ls-text-layer\" data-ls=\"minfontsize:0;minmobilefontsize:0;\"><i class=\"fa fa-user-circle\" style=\"color:#f2f2f2;margin-right:0.8em;font-size:1em;transform:translateY( -0.125em );\"><\/i>GROUPE DE RECHERCHE : PUISSANCE<\/ls-layer><\/div><div class=\"ls-slide\" data-ls=\"bgposition:50% 50%;duration:6000;transition2d:5;\"><img loading=\"lazy\" decoding=\"async\" width=\"2600\" height=\"270\" 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role='menuitem'><a href='https:\/\/www.iemn.fr\/en\/la-recherche\/les-groupes\/groupe-puissance'  ><span class='avia-bullet'><\/span><span class='avia-menu-text'>Introduction<\/span><\/a><\/li>\n<li class='menu-item av-av_submenu_item-3762c67ab807f47fd80996be2a86bd89 menu-item-top-level menu-item-top-level-2' role='menuitem'><a href='https:\/\/www.iemn.fr\/en\/la-recherche\/les-groupes\/groupe-puissance\/members'  ><span class='avia-bullet'><\/span><span class='avia-menu-text'>Members<\/span><\/a><\/li>\n<li class='menu-item av-av_submenu_item-664aefac49ff25646967d270a040f9d0 menu-item-top-level menu-item-top-level-3' role='menuitem'><a href='https:\/\/www.iemn.fr\/en\/la-recherche\/les-groupes\/groupe-puissance\/research'  ><span class='avia-bullet'><\/span><span class='avia-menu-text'>Research<\/span><\/a><\/li>\n<li class='menu-item av-kbk05k-5c5944fac313107f26dddee0ba9e2d5b menu-item-top-level menu-item-top-level-4' role='menuitem'><a href='https:\/\/www.iemn.fr\/en\/la-recherche\/les-groupes'  ><span class='avia-bullet'><\/span><span class='avia-menu-text'>Other groups<\/span><\/a><\/li>\n<\/ul><\/div><\/div><div id='after_submenu_1'  class='main_color av_default_container_wrap container_wrap sidebar_right'  ><div class='container av-section-cont-open' ><div class='template-page content  av-content-small alpha units'><div class='post-entry post-entry-type-page post-entry-25929'><div class='entry-content-wrapper clearfix'>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-av_heading-30323832b5efa4fd7cf8a8dc1da22a39\">\n#top .av-special-heading.av-av_heading-30323832b5efa4fd7cf8a8dc1da22a39{\npadding-bottom:10px;\n}\nbody .av-special-heading.av-av_heading-30323832b5efa4fd7cf8a8dc1da22a39 .av-special-heading-tag .heading-char{\nfont-size:25px;\n}\n.av-special-heading.av-av_heading-30323832b5efa4fd7cf8a8dc1da22a39 .av-subheading{\nfont-size:15px;\n}\n<\/style>\n<div  class='av-special-heading av-av_heading-30323832b5efa4fd7cf8a8dc1da22a39 av-special-heading-h3  avia-builder-el-2  el_after_av_submenu  el_before_av_textblock  avia-builder-el-first'><h3 class='av-special-heading-tag'  itemprop=\"headline\"  >Temperature monitoring of operating AlGaN\/GaN HEMTs<\/h3><div class=\"special-heading-border\"><div class=\"special-heading-inner-border\"><\/div><\/div><\/div>\n<section  class='av_textblock_section av-jn4l7rra-997e580e6f61c6cab8af907bc965d276'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p>A new method, based on the integration of Nickel resistive sensor, was developed to measure operating temperature in GaN HEMTs dedicated to RF applications [1-2] . A specific technological process was developed to place a 200nm wide sensor in a short gate-to-drain spacing. Following a calibration step to measure sensor resistance versus temperature, HEMT is turn on and the sensor resistance is measured in the same time permitting the extraction of the operating temperature of the device (Fig.4a). A nonlinear dependence is observed linked with the decrease of the thermal conductivity with temperature rising. A maximum temperature of 101\u00b0C was extracted for a dissipated power of 5.4W.mm<sup>-1<\/sup>. This result was confirmed using a 2D physical-thermal model (Fig.4b).<\/p>\n<\/div><\/section>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-25ipnu1-35ff06825687d12c8d780f7f7314d45f\">\n.flex_column.av-25ipnu1-35ff06825687d12c8d780f7f7314d45f{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-25ipnu1-35ff06825687d12c8d780f7f7314d45f av_one_half  avia-builder-el-4  el_after_av_textblock  el_before_av_one_half  first flex_column_div av-zero-column-padding  column-top-margin'     ><section  class='av_textblock_section av-1m9c8q1-0fb93177d02603c5de2561c6c3fe07ac'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><div id=\"attachment_25933\" style=\"width: 522px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/temperature_fig4a.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-25933\" class=\"wp-image-25933 size-full\" title=\"Fig.4a: IDS versus VDS at VGS=0V and operating temperature\" src=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/temperature_fig4a.jpg\" alt=\"Fig.4a: IDS versus VDS at VGS=0V and operating temperature\" width=\"512\" height=\"360\" srcset=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/temperature_fig4a.jpg 512w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/temperature_fig4a-300x211.jpg 300w\" sizes=\"auto, (max-width: 512px) 100vw, 512px\" \/><\/a><p id=\"caption-attachment-25933\" class=\"wp-caption-text\">Fig.4a: IDS versus VDS at VGS=0V and operating temperature<\/p><\/div>\n<\/div><\/section><\/div>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-177lxe1-af300fea8d3d26090fae24b273b0fb87\">\n.flex_column.av-177lxe1-af300fea8d3d26090fae24b273b0fb87{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-177lxe1-af300fea8d3d26090fae24b273b0fb87 av_one_half  avia-builder-el-6  el_after_av_one_half  el_before_av_textblock  flex_column_div av-zero-column-padding  column-top-margin'     ><section  class='av_textblock_section av-q695zd-06cff21756bafa3ac63984a01d720fc7'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><div id=\"attachment_25937\" style=\"width: 498px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/temperature_fig4b.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-25937\" class=\"wp-image-25937 size-full\" title=\"Fig.4b: Ungated AlGaN\/GaN HEMT heating measured and simulated vs dissipated power. Inset: Sensor resistance versus temperature.\" src=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/temperature_fig4b.jpg\" alt=\"Fig.4b: Ungated AlGaN\/GaN HEMT heating measured and simulated vs dissipated power. Inset: Sensor resistance versus temperature.\" width=\"488\" height=\"376\" srcset=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/temperature_fig4b.jpg 488w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/temperature_fig4b-300x231.jpg 300w\" sizes=\"auto, (max-width: 488px) 100vw, 488px\" \/><\/a><p id=\"caption-attachment-25937\" class=\"wp-caption-text\">Fig.4b: Ungated AlGaN\/GaN HEMT heating measured and simulated vs dissipated power. Inset: Sensor resistance versus temperature.<\/p><\/div>\n<\/div><\/section><\/div>\n<section  class='av_textblock_section av-tl2w2x-e14738025cfa32447d067e14a0899479'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><hr \/>\n<p><em>[1] COZETTE F. et al, IEEE Electron Device Letters, vol.39, n\u00b010, pp.1560-1563, October 2018.<\/em><br \/>\n<em> [2] COZETTE F. et al, 48<sup>th<\/sup> European Solid-State Device Research Conference, Dresden, Germany, September 2018.<\/em><\/p>\n<\/div><\/section>\n<div  class='av_promobox av-js09a3uo-95c6a6ac9fb24e9e4d24e2dec1561c1b avia-button-no  avia-builder-el-9  el_after_av_textblock  avia-builder-el-last'><div class='avia-promocontent'><p>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-av_font_icon-46b4270e2aa10b934ea9f40492984a14\">\n.av_font_icon.av-av_font_icon-46b4270e2aa10b934ea9f40492984a14 .av-icon-char{\nfont-size:25px;\nline-height:25px;\n}\n<\/style>\n<span  class='av_font_icon av-av_font_icon-46b4270e2aa10b934ea9f40492984a14 avia_animate_when_visible av-icon-style- avia-icon-pos-left av-no-color avia-icon-animate'><span class='av-icon-char' aria-hidden='true' data-av_icon='\ue87f' data-av_iconfont='entypo-fontello' ><\/span><\/span><\/p>\n<p><strong>PUISSANCE Group : OTHER ACTIVITIES<\/strong><\/p>\n<ul>\n<li><a href=\"https:\/\/www.iemn.fr\/en\/la-recherche\/les-groupes\/groupe-puissance\/research\/algan\/\">AlGaN\/GaN HEMT thermal modeling and characterization<\/a><\/li>\n<li><a href=\"https:\/\/www.iemn.fr\/en\/la-recherche\/les-groupes\/groupe-puissance\/research\/measurement-above-110ghz\/\">Measurement above 110GHz<\/a><\/li>\n<li><a href=\"https:\/\/www.iemn.fr\/en\/la-recherche\/les-groupes\/groupe-puissance\/research\/modelling-gan\/\">Modelling of GaN-HEMT for high efficiency power converters<\/a><\/li>\n<li><a href=\"https:\/\/www.iemn.fr\/en\/la-recherche\/les-groupes\/groupe-puissance\/research\/nanoribbon\/\">Nanoribbon-channel AlGaN\/GaN HEMTs<\/a><\/li>\n<li><a href=\"https:\/\/www.iemn.fr\/en\/la-recherche\/les-groupes\/groupe-puissance\/research\/new-technological-routes\/\">New technological routes to improve thermal managements in GaN HEMTs<\/a><\/li>\n<li><a href=\"https:\/\/www.iemn.fr\/en\/la-recherche\/les-groupes\/groupe-puissance\/research\/power-performance\/\">Power performance at 40GHz of AlGaN\/GaN HEMTs on silicon substrate<\/a><\/li>\n<\/ul>\n<p>\n<\/div><\/div>","protected":false},"excerpt":{"rendered":"","protected":false},"author":2,"featured_media":0,"parent":25963,"menu_order":40,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-25929","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/pages\/25929","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/comments?post=25929"}],"version-history":[{"count":0,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/pages\/25929\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/pages\/25963"}],"wp:attachment":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/media?parent=25929"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}