{"id":76205,"date":"2025-12-09T12:15:27","date_gmt":"2025-12-09T10:15:27","guid":{"rendered":"https:\/\/www.iemn.fr\/?p=76205"},"modified":"2025-12-18T08:59:51","modified_gmt":"2025-12-18T06:59:51","slug":"sonder-les-tres-hautes-frequences-au-coeur-meme-du-silicium","status":"publish","type":"post","link":"https:\/\/www.iemn.fr\/en\/newsletter\/sonder-les-tres-hautes-frequences-au-coeur-meme-du-silicium.html","title":{"rendered":"Sonder les tr\u00e8s hautes fr\u00e9quences au c\u0153ur m\u00eame du silicium"},"content":{"rendered":"<section  class='av_textblock_section av-miyfdk3p-4bf4352a16904ef7e17ef3089736ca3c'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><h2 style=\"line-height: 20pt; text-align: center;\"><strong><span style=\"color: #993366;\">Sonder le bruit aux tr\u00e8s hautes fr\u00e9quences au c\u0153ur m\u00eame du silicium<\/span><\/strong><\/h2>\n<\/div><\/section>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-miyb1s0u-89e201b2c2ee5ee30383333df4d29227\">\n#top .hr.av-miyb1s0u-89e201b2c2ee5ee30383333df4d29227{\nmargin-top:30px;\nmargin-bottom:30px;\n}\n.hr.av-miyb1s0u-89e201b2c2ee5ee30383333df4d29227 .hr-inner{\nwidth:500px;\nborder-color:#993366;\nmax-width:45%;\n}\n.hr.av-miyb1s0u-89e201b2c2ee5ee30383333df4d29227 .av-seperator-icon{\ncolor:#993366;\n}\n<\/style>\n<div  class='hr av-miyb1s0u-89e201b2c2ee5ee30383333df4d29227 hr-custom  avia-builder-el-1  el_after_av_textblock  el_before_av_textblock  hr-center hr-icon-yes'><span class='hr-inner inner-border-av-border-fat'><span class=\"hr-inner-style\"><\/span><\/span><span class='av-seperator-icon' aria-hidden='true' data-av_icon='\ue808' data-av_iconfont='entypo-fontello'><\/span><span class='hr-inner inner-border-av-border-fat'><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n<section  class='av_textblock_section av-miy9ydyr-fdcd5db5808ef54022db4829eaba8c17'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><h5 style=\"text-align: justify; line-height: 20pt;\"><span style=\"color: #993366;\">D\u00e9couvrez une sonde de mesure \u00e9lectronique d\u2019un nouveau genre, int\u00e9grant directement une source de bruit miniaturis\u00e9e au plus pr\u00e8s des pointes de contact.<\/span> L\u2019objectif est simple mais la r\u00e9alit\u00e9 \u00e9pineuse : caract\u00e9riser le bruit, directement sur les tranches de silicium (wafers), des transistors et circuits BiCMOS parmi les plus performants, jusqu\u2019\u00e0 la bande G des ondes millim\u00e9triques (140\u2013220 GHz). Faute de solutions adapt\u00e9es sur le march\u00e9, <strong><span style=\"color: #993366;\">une source de bruit amplifi\u00e9e a \u00e9t\u00e9 con\u00e7ue sur mesure, ajustable en puissance, large bande, et r\u00e9alis\u00e9e dans la m\u00eame technologie que les composants mesur\u00e9s. Une approche originale qui ouvre la voie \u00e0 des tests plus pr\u00e9cis, plus rapides et aux technologies de sondes de mesure actives.<\/span><\/strong><\/h5>\n<\/div><\/section>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-miygbs6i-7ce455c211c4a165c60492fd6d0899f5\">\n#top .hr.hr-invisible.av-miygbs6i-7ce455c211c4a165c60492fd6d0899f5{\nheight:50px;\n}\n<\/style>\n<div  class='hr av-miygbs6i-7ce455c211c4a165c60492fd6d0899f5 hr-invisible  avia-builder-el-3  el_after_av_textblock  el_before_av_one_fourth  av-small-hide av-mini-hide'><span class='hr-inner'><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-rttl8m-af6bd69a7defbf4571a4f7b69e7676f4\">\n#top .flex_column.av-rttl8m-af6bd69a7defbf4571a4f7b69e7676f4{\nmargin-top:0px;\nmargin-bottom:0px;\n}\n.responsive #top #wrap_all .flex_column.av-rttl8m-af6bd69a7defbf4571a4f7b69e7676f4{\nmargin-top:0px;\nmargin-bottom:0px;\n}\n<\/style>\n<div  class='flex_column av-rttl8m-af6bd69a7defbf4571a4f7b69e7676f4 av_one_fourth  avia-builder-el-4  el_after_av_hr  el_before_av_three_fourth  first flex_column_div'     ><style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-miy9zxps-6709e6766c71b5140b17ac573cbcac58\">\n#top .av_textblock_section.av-miy9zxps-6709e6766c71b5140b17ac573cbcac58 .avia_textblock{\ntext-align:justify;\n}\n<\/style>\n<section  class='av_textblock_section av-miy9zxps-6709e6766c71b5140b17ac573cbcac58'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><h5 class=\"p2\" style=\"text-align: justify; line-height: 20pt;\"><strong><span style=\"color: #993366;\">\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-mqde7m-1-5-44273723a8a15c0f8cd3a39ac3717da3\">\n.av_font_icon.av-mqde7m-1-5-44273723a8a15c0f8cd3a39ac3717da3{\ncolor:#993366;\nborder-color:#993366;\n}\n.av_font_icon.av-mqde7m-1-5-44273723a8a15c0f8cd3a39ac3717da3 .av-icon-char{\nfont-size:25px;\nline-height:25px;\n}\n<\/style>\n<span  class='av_font_icon av-mqde7m-1-5-44273723a8a15c0f8cd3a39ac3717da3 avia_animate_when_visible av-icon-style- avia-icon-pos-left avia-icon-animate'><span class='av-icon-char' aria-hidden='true' data-av_icon='\ue89a' data-av_iconfont='entypo-fontello' ><\/span><\/span>Une sonde de mesure intelligente pour les tr\u00e8s hautes fr\u00e9quences : quand la source de bruit entre dans la sonde<\/span><\/strong><\/h5>\n<p class=\"p2\">\u00c0 l\u2019heure o\u00f9 les syst\u00e8mes de communication, de radar et d\u2019imagerie progressent vers le haut du spectre des ondes millim\u00e9triques, les technologies micro\u00e9lectroniques doivent repousser leurs propres limites. Concevoir un circuit capable de fonctionner \u00e0 170, 200 ou 220 GHz est une chose. \u00catre capable de le mesurer de mani\u00e8re fiable en est une autre, tout aussi critique. Sans caract\u00e9risation pr\u00e9cise, pas de mod\u00e8les de simulation, pas d\u2019applications robustes. C\u2019est pr\u00e9cis\u00e9ment \u00e0 ce verrou technologique que s\u2019attaque ce projet<span class=\"s1\">(1) <\/span>men\u00e9 au sein du laboratoire commun ST-IEMN<span class=\"s1\">(2) <\/span>: int\u00e9grer une source de bruit directement dans la sonde de mesure, au plus pr\u00e8s des pointes de contact avec le silicium.<\/p>\n<\/div><\/section><\/div>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-29p0jpp-e8036da66b98e9094a4598a729b0297a\">\n@keyframes av_boxShadowEffect_av-29p0jpp-e8036da66b98e9094a4598a729b0297a-column {\n0%   { box-shadow:  0 0 0 0 #c1bbbb; opacity: 1; }\n100% { box-shadow:  0 0 5px 0 #c1bbbb; opacity: 1; }\n}\n#top .flex_column.av-29p0jpp-e8036da66b98e9094a4598a729b0297a{\nmargin-top:0px;\nmargin-bottom:0px;\n}\n.flex_column.av-29p0jpp-e8036da66b98e9094a4598a729b0297a{\nbox-shadow: 0 0 5px 0 #c1bbbb;\nborder-width:10px;\nborder-color:#ffffff;\nborder-style:solid;\nborder-radius:10px 10px 10px 10px;\n}\n.responsive #top #wrap_all .flex_column.av-29p0jpp-e8036da66b98e9094a4598a729b0297a{\nmargin-top:0px;\nmargin-bottom:0px;\n}\n<\/style>\n<div  class='flex_column av-29p0jpp-e8036da66b98e9094a4598a729b0297a av_three_fourth  avia-builder-el-7  el_after_av_one_fourth  el_before_av_one_third  flex_column_div shadow-not-animated'     ><section  class='av_textblock_section av-miyfckvd-a27b1ba036306402859fa6245a1cb61c'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><p style=\"text-align: center;\"><a href=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2025\/12\/smart_probe_concept3.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-76257 aligncenter\" src=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2025\/12\/smart_probe_concept3.jpg\" alt=\"\" width=\"1400\" height=\"650\" srcset=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2025\/12\/smart_probe_concept3.jpg 1400w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2025\/12\/smart_probe_concept3-300x139.jpg 300w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2025\/12\/smart_probe_concept3-1030x478.jpg 1030w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2025\/12\/smart_probe_concept3-768x357.jpg 768w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2025\/12\/smart_probe_concept3-18x8.jpg 18w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2025\/12\/smart_probe_concept3-705x327.jpg 705w\" sizes=\"auto, (max-width: 1400px) 100vw, 1400px\" \/><\/a><br \/>\n<em>Sonde de mesure GSG active incorporant une source de bruit en bande G (140-220 GHz) pour la mesure sur tranche<\/em><\/p>\n<\/div><\/section><\/div>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-1gwag19-7faf43a4788f775633b6aab62bae450a\">\n#top .flex_column.av-1gwag19-7faf43a4788f775633b6aab62bae450a{\nmargin-top:0px;\nmargin-bottom:0px;\n}\n.responsive #top #wrap_all .flex_column.av-1gwag19-7faf43a4788f775633b6aab62bae450a{\nmargin-top:0px;\nmargin-bottom:0px;\n}\n<\/style>\n<div  class='flex_column av-1gwag19-7faf43a4788f775633b6aab62bae450a av_one_third  avia-builder-el-9  el_after_av_three_fourth  el_before_av_one_third  first flex_column_div  column-top-margin'     ><style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-miyfjgfr-5c8e043c457bff848d8b13ed1d2549aa\">\n#top .av_textblock_section.av-miyfjgfr-5c8e043c457bff848d8b13ed1d2549aa .avia_textblock{\ntext-align:justify;\n}\n<\/style>\n<section  class='av_textblock_section av-miyfjgfr-5c8e043c457bff848d8b13ed1d2549aa'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><h5 class=\"p2\" style=\"text-align: justify; line-height: 20pt;\"><strong><span style=\"color: #993366;\">\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-mqde7m-1-5-1-c352c40c8fabf3a8d4435ce6157219c9\">\n.av_font_icon.av-mqde7m-1-5-1-c352c40c8fabf3a8d4435ce6157219c9{\ncolor:#993366;\nborder-color:#993366;\n}\n.av_font_icon.av-mqde7m-1-5-1-c352c40c8fabf3a8d4435ce6157219c9 .av-icon-char{\nfont-size:25px;\nline-height:25px;\n}\n<\/style>\n<span  class='av_font_icon av-mqde7m-1-5-1-c352c40c8fabf3a8d4435ce6157219c9 avia_animate_when_visible av-icon-style- avia-icon-pos-left avia-icon-animate'><span class='av-icon-char' aria-hidden='true' data-av_icon='\ue89a' data-av_iconfont='entypo-fontello' ><\/span><\/span>Pourquoi le bruit est-il un outil de mesure ?<\/span><\/strong><\/h5>\n<p class=\"p2\">En \u00e9lectronique hyperfr\u00e9quence, le bruit n\u2019est pas seulement une nuisance : c\u2019est un signal de r\u00e9f\u00e9rence. Les ing\u00e9nieurs l\u2019utilisent pour d\u00e9terminer des param\u00e8tres cl\u00e9s tels que la figure de bruit, qui permet d\u2019\u00e9valuer la d\u00e9gradation du signal par un composant (transistor, amplificateur, m\u00e9langeur\u2026). \u00c0 tr\u00e8s haute fr\u00e9quence, ces param\u00e8tres conditionnent directement la qualit\u00e9 d\u2019un radar automobile, la port\u00e9e d\u2019un lien sans fil ou la sensibilit\u00e9 d\u2019un capteur d\u2019imagerie. Or, dans la bande G (140\u2013220 GHz), il n\u2019existe quasiment pas de sources de bruit commerciales adapt\u00e9es sur le march\u00e9 : elles sont co\u00fbteuses, peu pilotables, rarement plates en fr\u00e9quence, et surtout difficiles \u00e0 interfacer avec des bancs de mesure d\u00e9di\u00e9s \u00e0 la mesure sur tranche. R\u00e9sultat : caract\u00e9riser un transistor de derni\u00e8re g\u00e9n\u00e9ration devient parfois plus compliqu\u00e9 que le concevoir.<\/p>\n<h5 class=\"p2\" style=\"text-align: justify; line-height: 20pt;\"><strong><span style=\"color: #993366;\">\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-mqde7m-1-5-7-d6e4373f1dd2b7fe11247d2e6238882c\">\n.av_font_icon.av-mqde7m-1-5-7-d6e4373f1dd2b7fe11247d2e6238882c{\ncolor:#993366;\nborder-color:#993366;\n}\n.av_font_icon.av-mqde7m-1-5-7-d6e4373f1dd2b7fe11247d2e6238882c .av-icon-char{\nfont-size:25px;\nline-height:25px;\n}\n<\/style>\n<span  class='av_font_icon av-mqde7m-1-5-7-d6e4373f1dd2b7fe11247d2e6238882c avia_animate_when_visible av-icon-style- avia-icon-pos-left avia-icon-animate'><span class='av-icon-char' aria-hidden='true' data-av_icon='\ue89a' data-av_iconfont='entypo-fontello' ><\/span><\/span>Une avanc\u00e9e d\u00e9cisive : rapprocher l\u2019instrument du dispositif<\/span><\/strong><\/h5>\n<p class=\"p2\">Jusqu\u2019\u00e0 pr\u00e9sent, deux grandes approches coexistaient. La premi\u00e8re consistait \u00e0 int\u00e9grer l\u2019instrumentation de test directement dans la puce \u00e0 mesurer (autotest int\u00e9gr\u00e9, ou BIST). Efficace, mais co\u00fbteuse en surface silicium, et surtout inutilisable pour une autre technologie que celle dans laquelle elle est fabriqu\u00e9e. La seconde reposait sur des \u00e9quipements externes reli\u00e9s par des guides d\u2019ondes et des transitions\u2026 autant de sources de pertes, de r\u00e9flexions et d\u2019incertitudes. <strong>L\u2019innovation introduite ici est radicale : placer la source de bruit dans la sonde de mesure elle-m\u00eame . On ne teste plus un composant \u2018\u00e0 distance\u2019, mais avec un instrument quasi coll\u00e9 \u00e0 ses contacts terminaux. Cette approche inaugure la notion de sondeintelligente , capable non seulement de contacter un circuit, mais aussi de produire le spectre de bruit n\u00e9cessaire \u00e0 sa caract\u00e9risation.<\/strong><\/p>\n<\/div><\/section><\/div>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-1cpwcml-8f56d2847d0043180887d3c990841542\">\n#top .flex_column.av-1cpwcml-8f56d2847d0043180887d3c990841542{\nmargin-top:0px;\nmargin-bottom:0px;\n}\n.responsive #top #wrap_all .flex_column.av-1cpwcml-8f56d2847d0043180887d3c990841542{\nmargin-top:0px;\nmargin-bottom:0px;\n}\n<\/style>\n<div  class='flex_column av-1cpwcml-8f56d2847d0043180887d3c990841542 av_one_third  avia-builder-el-13  el_after_av_one_third  el_before_av_one_third  flex_column_div  column-top-margin'     ><style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-miyflj7x-085f810362c99a98245ba83cab627ecc\">\n#top .av_textblock_section.av-miyflj7x-085f810362c99a98245ba83cab627ecc .avia_textblock{\ntext-align:justify;\n}\n<\/style>\n<section  class='av_textblock_section av-miyflj7x-085f810362c99a98245ba83cab627ecc'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><h5 class=\"p2\" style=\"text-align: justify; line-height: 20pt;\"><strong><span style=\"color: #993366;\">\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-mqde7m-1-5-6-89bb39b467cc1716954c3925ef3360be\">\n.av_font_icon.av-mqde7m-1-5-6-89bb39b467cc1716954c3925ef3360be{\ncolor:#993366;\nborder-color:#993366;\n}\n.av_font_icon.av-mqde7m-1-5-6-89bb39b467cc1716954c3925ef3360be .av-icon-char{\nfont-size:25px;\nline-height:25px;\n}\n<\/style>\n<span  class='av_font_icon av-mqde7m-1-5-6-89bb39b467cc1716954c3925ef3360be avia_animate_when_visible av-icon-style- avia-icon-pos-left avia-icon-animate'><span class='av-icon-char' aria-hidden='true' data-av_icon='\ue89a' data-av_iconfont='entypo-fontello' ><\/span><\/span>Une source de bruit innovante\u2026 dans la m\u00eame technologie que les circuits test\u00e9s<\/span><\/strong><\/h5>\n<p class=\"p2\" style=\"text-align: justify;\"><strong>L\u2019un des choix novateurs du projet est d\u2019avoir con\u00e7u cette source de bruit dans la m\u00eame technologie que les composants \u00e0 mesurer<\/strong> : la technologie BiCMOS B55X de STMicroelectronics (ST), capable d\u2019atteindre des fr\u00e9quences de coupure sup\u00e9rieures \u00e0 400 GHz. Les r\u00e9sultats sont probants : en configuration packag\u00e9e, des niveaux de bruit en exc\u00e8s ajustables jusqu\u2019\u00e0 29 dB sont obtenus entre 140 et 170 GHz, avec une adaptation d\u2019imp\u00e9dance meilleure que \u201312 dB sur toute la bande. <strong>Autrement dit : la source de bruit est puissante, contr\u00f4lable et bien adapt\u00e9e, l\u00e0 o\u00f9 le march\u00e9 est silencieux.<\/strong><\/p>\n<h5 class=\"p2\" style=\"text-align: justify;\"><strong><span style=\"color: #993366;\">\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-mqde7m-1-5-5-0188eb082acc66e2ae0e28f616dece1d\">\n.av_font_icon.av-mqde7m-1-5-5-0188eb082acc66e2ae0e28f616dece1d{\ncolor:#993366;\nborder-color:#993366;\n}\n.av_font_icon.av-mqde7m-1-5-5-0188eb082acc66e2ae0e28f616dece1d .av-icon-char{\nfont-size:25px;\nline-height:25px;\n}\n<\/style>\n<span  class='av_font_icon av-mqde7m-1-5-5-0188eb082acc66e2ae0e28f616dece1d avia_animate_when_visible av-icon-style- avia-icon-pos-left avia-icon-animate'><span class='av-icon-char' aria-hidden='true' data-av_icon='\ue89a' data-av_iconfont='entypo-fontello' ><\/span><\/span>L\u2019autre innovation cl\u00e9 : des pointes de sonde r\u00e9invent\u00e9es<\/span><\/strong><\/h5>\n<p class=\"p2\" style=\"text-align: justify;\">Une mesure de haute pr\u00e9cision ne d\u00e9pend pas seulement de l\u2019\u00e9lectronique, mais aussi de la m\u00e9canique. \u00c0 200 GHz, une pointe de sonde mal align\u00e9e ou trop fragile devient un facteur limitant. D\u2019o\u00f9 le <strong>d\u00e9veloppement de nouvelles sondes Ground-Signal-Ground fabriqu\u00e9es par micro-usinage laser femtoseconde.<\/strong> R\u00e9alis\u00e9es \u00e0 partir d\u2019un substrat de verre Schott AF32 recouvert de nickel, ces pointes affichent une r\u00e9sistance \u00e9lectrique de contact remarquablement faible (0,05 ohm) et une robustesse m\u00e9canique in\u00e9gal\u00e9e : elles supportent des forces plus de trois fois sup\u00e9rieures \u00e0 celle n\u00e9cessaire pour assurer un contact \u00e9lectrique de qualit\u00e9. <strong>Ce progr\u00e8s est d\u00e9cisif pour fiabiliser des milliers de contacts successifs en environnement industriel ou en laboratoire.<\/strong><\/p>\n<\/div><\/section><\/div>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-skuo4t-985e777aefaa184f4bad3ccbf228a081\">\n#top .flex_column.av-skuo4t-985e777aefaa184f4bad3ccbf228a081{\nmargin-top:0px;\nmargin-bottom:0px;\n}\n.responsive #top #wrap_all .flex_column.av-skuo4t-985e777aefaa184f4bad3ccbf228a081{\nmargin-top:0px;\nmargin-bottom:0px;\n}\n<\/style>\n<div  class='flex_column av-skuo4t-985e777aefaa184f4bad3ccbf228a081 av_one_third  avia-builder-el-17  el_after_av_one_third  el_before_av_one_full  flex_column_div  column-top-margin'     ><style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-miyfmrgf-a5fa473b2773666449562f93409b016e\">\n#top .av_textblock_section.av-miyfmrgf-a5fa473b2773666449562f93409b016e .avia_textblock{\ntext-align:justify;\n}\n<\/style>\n<section  class='av_textblock_section av-miyfmrgf-a5fa473b2773666449562f93409b016e'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><h5 class=\"p2\" style=\"text-align: justify; line-height: 20pt;\"><strong><span style=\"color: #993366;\">\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-mqde7m-1-5-4-27664731d89b9863d88cd07867120b22\">\n.av_font_icon.av-mqde7m-1-5-4-27664731d89b9863d88cd07867120b22{\ncolor:#993366;\nborder-color:#993366;\n}\n.av_font_icon.av-mqde7m-1-5-4-27664731d89b9863d88cd07867120b22 .av-icon-char{\nfont-size:25px;\nline-height:25px;\n}\n<\/style>\n<span  class='av_font_icon av-mqde7m-1-5-4-27664731d89b9863d88cd07867120b22 avia_animate_when_visible av-icon-style- avia-icon-pos-left avia-icon-animate'><span class='av-icon-char' aria-hidden='true' data-av_icon='\ue89a' data-av_iconfont='entypo-fontello' ><\/span><\/span>Un interposeur en verre pour r\u00e9duire les pertes<\/span><\/strong><\/h5>\n<p class=\"p2\">Derni\u00e8re pi\u00e8ce du puzzle : l\u2019<strong>utilisation d\u2019un interposeur en verre pour int\u00e9grer la puce \u2018source de bruit\u2019 au plus pr\u00e8s des pointes.<\/strong> Le verre pr\u00e9sente de faibles pertes di\u00e9lectriques \u00e0 tr\u00e8s haute fr\u00e9quence, limitant l\u2019att\u00e9nuation et les distorsions du signal. Gr\u00e2ce au micro-usinage laser, les interconnexions sont r\u00e9alis\u00e9es avec une pr\u00e9cision microm\u00e9trique, simplifiant le chemin de propagation du signal et r\u00e9duisant drastiquement les transitions parasites.<\/p>\n<h5 class=\"p2\" style=\"text-align: justify; line-height: 20pt;\"><strong><span style=\"color: #993366;\">\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-mqde7m-1-5-3-ac2d0e5699925780d0b6965af1b53a42\">\n.av_font_icon.av-mqde7m-1-5-3-ac2d0e5699925780d0b6965af1b53a42{\ncolor:#993366;\nborder-color:#993366;\n}\n.av_font_icon.av-mqde7m-1-5-3-ac2d0e5699925780d0b6965af1b53a42 .av-icon-char{\nfont-size:25px;\nline-height:25px;\n}\n<\/style>\n<span  class='av_font_icon av-mqde7m-1-5-3-ac2d0e5699925780d0b6965af1b53a42 avia_animate_when_visible av-icon-style- avia-icon-pos-left avia-icon-animate'><span class='av-icon-char' aria-hidden='true' data-av_icon='\ue89a' data-av_iconfont='entypo-fontello' ><\/span><\/span>Des b\u00e9n\u00e9fices bien au-del\u00e0 du laboratoire<\/span><\/strong><\/h5>\n<h6 class=\"p2\" style=\"text-align: justify; line-height: 16pt;\"><strong><span style=\"color: #993366;\">Ce travail d\u00e9passe largement la performance d\u2019un montage exp\u00e9rimental. Il propose un nouveau mod\u00e8le d\u2019instrumentation pour les technologies millim\u00e9triques : plus compact, plus proche du composant, plus universel. Pour un industriel, cela signifie des co\u00fbts de test r\u00e9duits, une mont\u00e9e en maturit\u00e9 technologique plus rapide, et une meilleure fiabilit\u00e9 des produits finaux. Pour un chercheur, c\u2019est l\u2019acc\u00e8s \u00e0 des mesures extr\u00eamement ardues \u00e0 mettre en \u0153uvre hier encore. En rapprochant l\u2019instrument du silicium jusqu\u2019\u00e0 l\u2019extr\u00eame limite physique, cette \u2018sonde intelligente\u2019 dote le geste instrumental d\u2019une r\u00e9volution m\u00e9thodologique.<\/span><\/strong><\/h6>\n<hr \/>\n<p class=\"p2\"><strong><strong><span style=\"color: #993366;\">\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-mqde7m-001b1026c1604aa480cb064bac0217db\">\n.av_font_icon.av-mqde7m-001b1026c1604aa480cb064bac0217db{\ncolor:#993366;\nborder-color:#993366;\n}\n.av_font_icon.av-mqde7m-001b1026c1604aa480cb064bac0217db .av-icon-char{\nfont-size:25px;\nline-height:25px;\n}\n<\/style>\n<span  class='av_font_icon av-mqde7m-001b1026c1604aa480cb064bac0217db avia_animate_when_visible av-icon-style- avia-icon-pos-left avia-icon-animate'><span class='av-icon-char' aria-hidden='true' data-av_icon='\ue805' data-av_iconfont='entypo-fontello' ><\/span><\/span><\/span><a href=\"mailto:Emmanuel.Dubois@iemn.fr\"><span style=\"color: #993366;\"><span style=\"color: #f16728;\"><span style=\"color: #993366;\">E<\/span><\/span><\/span><span style=\"color: #993366;\">mmanuel.Dubois@iemn.fr<\/span><\/a><\/strong><\/strong><\/p>\n<\/div><\/section><\/div>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-miyatqbt-c924266921325ed04581207d29041944\">\n#top .flex_column.av-miyatqbt-c924266921325ed04581207d29041944{\nmargin-top:0px;\nmargin-bottom:0px;\n}\n.flex_column.av-miyatqbt-c924266921325ed04581207d29041944{\nborder-width:25px;\nborder-color:#f4edef;\nborder-style:solid;\nborder-radius:10px 10px 10px 10px;\nbackground-color:#f4edef;\n}\n.responsive #top #wrap_all .flex_column.av-miyatqbt-c924266921325ed04581207d29041944{\nmargin-top:0px;\nmargin-bottom:0px;\n}\n<\/style>\n<div  class='flex_column av-miyatqbt-c924266921325ed04581207d29041944 av_one_full  avia-builder-el-22  el_after_av_one_third  avia-builder-el-last  first flex_column_div  column-top-margin'     ><section  class='av_textblock_section av-miyaslro-343c22e7066efc16235e21a03da1592a'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-mqde7m-1-5-2-099c7fd01d9b3a5f7343b39590eb31e7\">\n.av_font_icon.av-mqde7m-1-5-2-099c7fd01d9b3a5f7343b39590eb31e7{\ncolor:#993366;\nborder-color:#993366;\n}\n.av_font_icon.av-mqde7m-1-5-2-099c7fd01d9b3a5f7343b39590eb31e7 .av-icon-char{\nfont-size:25px;\nline-height:25px;\n}\n<\/style>\n<span  class='av_font_icon av-mqde7m-1-5-2-099c7fd01d9b3a5f7343b39590eb31e7 avia_animate_when_visible av-icon-style- avia-icon-pos-left avia-icon-animate'><span class='av-icon-char' aria-hidden='true' data-av_icon='\ue84e' data-av_iconfont='entypo-fontello' ><\/span><\/span> <strong><span style=\"color: #993366;\">References<\/span><\/strong><\/p>\n<p class=\"p2\">(1) Maya Alawar, Sylvie Lepilliet, Victor Fiorese, Sylvie L\u00e9pilliet, Daniel Gloria, Guillaume Ducournau, Emmanuel Dubois, \u2018Toward smart probes for mmW on-wafer measurements: advanced packaging using laser micromachining of glass\u2019, IEEE Transactions on Microwave Theory and Techniques, vol. 73, no. 11, pp. 8544-8555, Nov. 2025, doi: 10.1109\/TMTT.2025.3595651<br \/>\n<a href=\"https:\/\/hal.science\/hal-05214588\" target=\"_blank\" rel=\"noopener\">https:\/\/hal.science\/hal-05214588<\/a>\u00a0 &#8211; \u00a0 <a href=\"https:\/\/dx.doi.org\/10.1109\/TMTT.2025.3595651\" target=\"_blank\" rel=\"noopener\">https:\/\/dx.doi.org\/10.1109\/TMTT.2025.3595651<\/a><\/p>\n<p class=\"p3\"><span class=\"s3\">(2) Laboratoire Commun ST-IEMN &#8211; <\/span><a href=\"https:\/\/www.cnrs.fr\/fr\/actualite\/laboratoire-commun-st-iemn-pascal-ancey-plus-de-vingt-ans-de-collaboration-dans-le\" target=\"_blank\" rel=\"noopener\">www.cnrs.fr\/fr\/actualite\/laboratoire-commun-st-iemn-pascal-ancey-plus-de- vingt-ans-de-collaboration-dans-le<\/a> Sonde de mesure GSG active incorporant une source de bruit en bande G (140-220 GHz) pour la mesure sur tranche<\/p>\n<\/div><\/section><\/div>","protected":false},"excerpt":{"rendered":"","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[297],"tags":[],"class_list":["post-76205","post","type-post","status-publish","format-standard","hentry","category-newsletter"],"_links":{"self":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/posts\/76205","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/types\/post"}],"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=76205"}],"version-history":[{"count":30,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/posts\/76205\/revisions"}],"predecessor-version":[{"id":76534,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/posts\/76205\/revisions\/76534"}],"wp:attachment":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/media?parent=76205"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/categories?post=76205"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/tags?post=76205"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}