{"id":22766,"date":"2019-09-20T08:00:44","date_gmt":"2019-09-20T07:00:44","guid":{"rendered":"https:\/\/www.inovallee.com\/?p=22766"},"modified":"2019-09-20T08:00:44","modified_gmt":"2019-09-20T07:00:44","slug":"antaios-developpe-une-technologie-de-memoire-disruptive-le-sot-spin-orbit-transfer-afin-de-reduire-la-consommation-energetique-des-processeurs","status":"publish","type":"post","link":"https:\/\/www.inovallee.com\/en\/antaios-developpe-une-technologie-de-memoire-disruptive-le-sot-spin-orbit-transfer-afin-de-reduire-la-consommation-energetique-des-processeurs\/","title":{"rendered":"Antaios d\u00e9veloppe une technologie de m\u00e9moire disruptive, le SOT (Spin Orbit Transfer), afin de r\u00e9duire la consommation \u00e9nerg\u00e9tique des processeurs"},"content":{"rendered":"\n<p><strong>Face \u00e0 l\u2019urgence climatique,\nde nombreuses r\u00e9ponses apparaissent, valorisant les bienfaits de l\u2019IoT et des\nSmartgrid. Toutefois, le num\u00e9rique, qui a pris une place in\u00e9dite dans nos vies,\na lui aussi une empreinte \u00e9cologique, g\u00e9n\u00e9rant une consommation \u00e9lectrique\naccrue.&nbsp;On estime aujourd&rsquo;hui que le stockage de donn\u00e9es repr\u00e9sentera 1\/5<sup>\u00e8me<\/sup>\nde la consommation mondiale d&rsquo;\u00e9nergie d&rsquo;ici \u00e0 2025. R\u00e9duire la consommation\n\u00e9nerg\u00e9tique est donc devenu un enjeu majeur pour les industriels de la\nmicro-\u00e9lectronique. Dans cette optique, la startup deeptech du Tarmac, Antaios,\nd\u00e9veloppe une technologie de m\u00e9moire disruptive SOT-MRAM, non volatile et peu \u00e9nergivore,\nqui pourrait remplacer progressivement les m\u00e9moires Flash et SRAM, notamment\ndans les syst\u00e8mes embarqu\u00e9s et les processeurs.<\/strong><\/p>\n\n\n<div class=\"wp-block-image\"><figure class=\"alignleft is-resized\"><img fetchpriority=\"high\" decoding=\"async\" src=\"https:\/\/www.inovallee.com\/wp-content\/uploads\/2019\/09\/jean-pierre-noziere-900x1350.jpg\" alt=\"\" class=\"wp-image-22826\" width=\"225\" height=\"338\"\/><figcaption>Jean-Pierre Nozi\u00e8res, physicien et entrepreneur sp\u00e9cialis\u00e9 dans le d\u00e9veloppement de technologies relevant de la spintronique <\/figcaption><\/figure><\/div>\n\n\n<p>Incub\u00e9e au Tarmac \u00e0 Montbonnot-St-Martin,\nAntaios est une jeune start-up cofond\u00e9e en 2017 par Jean-Pierre Nozi\u00e8res, expert\nen spintronique (une technique qui exploite la propri\u00e9t\u00e9 quantique du spin des \u00e9lectrons\ndans le but de stocker des informations) dont les recherches portent sur les\nm\u00e9moires magn\u00e9tiques (MRAM) et Jean-Pascal Bost, ex CEO d\u2019Evaderis. Antaios d\u00e9veloppe\nune nouvelle g\u00e9n\u00e9ration de&nbsp;m\u00e9moire qui devrait devenir une alternative \u00e0\nfort potentiel par ses caract\u00e9ristiques.<\/p>\n\n\n<h2 class=\"wp-block-heading\">Les technologies de m\u00e9moires non volatiles magn\u00e9tiques prennent enfin leur\nessor<\/h2>\n\n\n<p>En d\u00e9veloppement depuis les\nann\u00e9es 1990, la m\u00e9moire MRAM (<em>Magnetic Random Access Memory<\/em>) non\nvolatile de type magn\u00e9tique, n&rsquo;a jusqu&rsquo;\u00e0 pr\u00e9sent jamais \u00e9t\u00e9 commercialis\u00e9e \u00e0\ngrande \u00e9chelle. Pour l\u2019heure, elle ne parvient pas \u00e0 concurrencer les SRAM\n(m\u00e9moire statique, apparues dans les ann\u00e9es 60), DRAM (m\u00e9moire dynamique) et\nFlash (un mod\u00e8le de m\u00e9moire effa\u00e7able \u00e9lectriquement et \u00e0 \u00e9criture rapide,\nd\u00e9velopp\u00e9 dans les ann\u00e9es 80). Si les technologies se sont miniaturis\u00e9es, le\nmarch\u00e9 de la m\u00e9moire a connu peu d\u2019innovation de rupture sur les derni\u00e8res\nd\u00e9cennies.<\/p>\n\n\n<p>Or, leur remplacement devient un\nenjeu phare pour l\u2019industrie micro\u00e9lectronique, qui doit faire face \u00e0 des\ndemandes de miniaturisation extr\u00eame, de r\u00e9duction des amplitudes, des dur\u00e9es\ndes courants d\u2019\u00e9criture et de lecture des donn\u00e9es. IBM, Toshiba, Samsung, Sony\u2026\nLes industriels de la micro\u00e9lectronique se sont lanc\u00e9s, depuis la\nfin&nbsp;2018, dans la course aux m\u00e9moires magn\u00e9tiques (MRAM), utilisant la\ntechnologie STT (<em>Spin-Transfer Torque<\/em>), notamment pour remplacer la\nFlash dont le co\u00fbt devient prohibitif \u00e0 28 nanom\u00e8tres et en dessous.<\/p>\n\n\n<h2 class=\"wp-block-heading\">La SOT MRAM est 3 \u00e0 5 fois plus petite que la STT MRAM<\/h2>\n\n\n<p>La STT-MRAM est en effet capable\nde fonctionner \u00e0 grande vitesse et consomme tr\u00e8s peu d\u2019\u00e9nergie, car elle\nconserve les donn\u00e9es m\u00eame lorsque l\u2019alimentation est coup\u00e9e. Gr\u00e2ce \u00e0 ces\ncaract\u00e9ristiques, elle devient de plus en plus populaire en tant que\ntechnologie de nouvelle g\u00e9n\u00e9ration pour des applications telles que les objets\nconnect\u00e9s. <\/p>\n\n\n<p>Si la STT MRAM semble bien plac\u00e9e\npour remplacer les m\u00e9moires Flash sur les march\u00e9s de l\u2019IoT et de l\u2019automobile,\nqui n\u00e9cessitent de l\u2019endurance (durabilit\u00e9), il reste n\u00e9anmoins des\nopportunit\u00e9s \u00e0 saisir pour remplacer la SRAM. Ainsi on peut utiliser une\ntechnologie unique, le SOT (<em>Spin-Orbit Torque<\/em>), pour remplacer la SRAM et\nla Flash. Avec une <strong>vitesse 10 fois sup\u00e9rieure \u00e0 celle des STT MRAM et une\nendurance infinie, la SOT MRAM<\/strong> est \u00e0 ce jour la seule technologie\npermettant le remplacement des m\u00e9moires caches SRAM. Avec une taille de cellule\n2 fois plus petite que celle d&rsquo;une m\u00e9moire SRAM, on peut s&rsquo;attendre \u00e0 des\ntailles de puce [et donc \u00e0 des co\u00fbts] au moins deux fois inf\u00e9rieures dans les\npuces contenant de grandes quantit\u00e9s de m\u00e9moire SRAM. Enfin, gr\u00e2ce \u00e0 la\nnon-volatilit\u00e9 et \u00e0 la capacit\u00e9 d&rsquo;offrir une dur\u00e9e de conservation sup\u00e9rieure \u00e0\n10 ans sans compromettre les performances, les puces bas\u00e9es sur SOT \u00e9liminent la\nprobl\u00e9matique des courants de fuites de la m\u00e9moire vive statique, tout en\ngarantissant la s\u00e9curit\u00e9 des donn\u00e9es.<\/p>\n\n\n<h2 class=\"wp-block-heading\">Une technologie prometteuse combinant endurance, densit\u00e9, facilit\u00e9 d\u2019incr\u00e9mentation et non-volatilit\u00e9<\/h2>\n\n\n<p>Cette approche du couple\nspin-orbite (SOT) surmonte en effet les limites actuelles des m\u00e9moires en\ns\u00e9parant les chemins de lecture et d\u2019\u00e9criture. Bien que novatrices dans leurs\nprincipes sous-jacents, les m\u00e9moires SOT reposent sur des technologies de base\n(mat\u00e9riaux, processus) similaires \u00e0 celles de la STT MRAM, en cours de\nd\u00e9ploiement dans les principales fonderies et IDM.<\/p>\n\n\n<p>Tr\u00e8s prometteuse, la technologie\nAntaios combine <strong>tr\u00e8s haute vitesse, endurance, densit\u00e9, facilit\u00e9\nd\u2019incr\u00e9mentation et non-volatilit\u00e9<\/strong>, c\u2019est-\u00e0-dire la capacit\u00e9 de pr\u00e9server\nles donn\u00e9es lorsque l&rsquo;appareil est mis hors tension. Actuellement, Antaios conc\u00e8de\nsa technologie sous licence aux fabricants de puces \u00e0 semi-conducteurs, les\naidant ainsi \u00e0 r\u00e9soudre le probl\u00e8me crucial de l&rsquo;explosion des demandes\nd&rsquo;\u00e9nergie pour l&rsquo;informatique avanc\u00e9e, des PC aux serveurs, en passant par les\nsmartphones, les tablettes et autres appareils mobiles.<\/p>\n\n\n<p>Avec sa technologie SOT MRAM, Antaios vise les march\u00e9s du Mobile qui recherche en particulier l\u2019efficacit\u00e9 \u00e9nerg\u00e9tique, du Stockage avec sa capacit\u00e9 de faire du <em>Edge Computing<\/em>, de l\u2019Intelligence Artificielle qui n\u00e9cessite des m\u00e9moires \u00e0 acc\u00e8s rapide, et des serveurs HPC (<em>High Performance Computing<\/em>) avec des exigences de puissance massive pour les calculs.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Face \u00e0 l\u2019urgence climatique, de nombreuses r\u00e9ponses apparaissent, valorisant les bienfaits de l\u2019IoT et des Smartgrid. Toutefois, le num\u00e9rique, qui a pris une place in\u00e9dite dans nos vies, a lui aussi une empreinte \u00e9cologique, g\u00e9n\u00e9rant une consommation \u00e9lectrique accrue.&nbsp;On estime aujourd&rsquo;hui que le stockage de donn\u00e9es repr\u00e9sentera 1\/5\u00e8me de la consommation mondiale d&rsquo;\u00e9nergie d&rsquo;ici \u00e0 [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":22831,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[45,44],"tags":[174,175],"class_list":["post-22766","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-startup-tarmac","category-tarmac-incubator","tag-deeptech","tag-sot-mram"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Antaios d\u00e9veloppe une technologie de m\u00e9moire disruptive, le SOT (Spin Orbit Transfer), afin de r\u00e9duire la consommation \u00e9nerg\u00e9tique des processeurs - 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