{"id":1711,"date":"2003-06-11T13:07:13","date_gmt":"2003-06-11T11:07:13","guid":{"rendered":"https:\/\/destinationcyber.com\/?p=1711"},"modified":"2003-06-11T13:07:13","modified_gmt":"2003-06-11T11:07:13","slug":"demarrage-instantane-des-pc-sous-mram-dibm","status":"publish","type":"post","link":"https:\/\/destinationcyber.com\/?p=1711","title":{"rendered":"D\u00e9marrage instantan\u00e9 des PC sous MRAM d&rsquo;IBM"},"content":{"rendered":"<p class=\"post_excerpt\">Les m\u00e9moires vives MRAM d&rsquo;IBM et d&rsquo;Infineon pourraient remplacer les DRAM d\u00e8s 2005. Avantage: elles se comportent comme une m\u00e9moire flash <\/p>\n<p>Issues de la recherche d&rsquo;IBM lanc\u00e9e dans les ann\u00e9es 1970, et relanc\u00e9es avec Infineon Technologies, les m\u00e9moires vives MRAM (Magnetic Random Access Memory) pourraient remplacer d\u00e8s 2005 les DRAM (Dynamic Random Access Memory) sur les PC. <\/p>\n<p>Les deux firmes vont prochainement pr\u00e9senter leur premi\u00e8re r\u00e9alisation int\u00e9gr\u00e9e sur une base existante, en 128 bits \u00e0 0,18 micron.<\/p>\n<p>La MRAM, qui stocke les donn\u00e9es non plus sous forme d&rsquo;impulsions \u00e9lectriques mais de charges magn\u00e9tiques, se comporte comme une m\u00e9moire flash. Donc apr\u00e8s avoir \u00e9teint son PC en sauvegardant les donn\u00e9es, celles-ci sont imm\u00e9diatement accessibles d\u00e8s l&rsquo;allumage du PC. \u00ab\u00a0Instantan\u00e9ment\u00a0\u00bb a soulign\u00e9 IBM, qui prend pour exemple une lampe \u00e9lectrique.<\/p>\n<p>Technologie enfin universelle ou \u00e9tape interm\u00e9diaire? Les fabricants de m\u00e9moires sont \u00e0 la recherche de la solution de m\u00e9moire vive du futur. IBM et Infineon devront affronter Toshiba, Motorola et NEC, et peut \u00eatre bient\u00f4t les fabricants cor\u00e9ens.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\" aligncenter size-full wp-image-1710\" src=\"https:\/\/destinationcyber.com\/wp-content\/uploads\/2003\/06\/gif_IBM_20MRAM.gif\" alt=\"IBM_20MRAM.gif\" align=\"center\" width=\"301\" height=\"207\" \/><br \/>\nIBM MRAM<\/p>\n<p>D\u00e9tails sur la technologie IBM des MRAM <\/p>\n<p>La photo qui suit, en provenance d&rsquo;IBM, montre les diff\u00e9rentes couches qui composent la MRAM. Sur les couches magn\u00e9tiques, les \u00e9lectrons repr\u00e9sent\u00e9s en rouge et vert tournent dans des directions oppos\u00e9es.<\/p>\n<p>Les isolants permettent la cr\u00e9ation de tunnels quantiques, l&rsquo;information \u00e9tant stock\u00e9e sur la couche sup\u00e9rieure dont les \u00e9lectrons se voient forc\u00e9s \u00e0 une rotation dans un sens ou dans un autre. Les donn\u00e9es sont donc identifi\u00e9es selon leur sens de rotation. <\/p>\n<p>[source &#8211; Silicon.fr]&nbsp;Yves Grandmontagne <\/p>\n","protected":false},"excerpt":{"rendered":"<p>Les m\u00e9moires vives MRAM d&rsquo;IBM et d&rsquo;Infineon pourraient remplacer les DRAM d\u00e8s 2005. Avantage: elles se comportent comme une m\u00e9moire flash <\/p>\n","protected":false},"author":1,"featured_media":1710,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_citadela_custom_class":"","footnotes":""},"categories":[14],"tags":[],"class_list":["post-1711","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-matos"],"_links":{"self":[{"href":"https:\/\/destinationcyber.com\/index.php?rest_route=\/wp\/v2\/posts\/1711","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/destinationcyber.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/destinationcyber.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/destinationcyber.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/destinationcyber.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1711"}],"version-history":[{"count":0,"href":"https:\/\/destinationcyber.com\/index.php?rest_route=\/wp\/v2\/posts\/1711\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/destinationcyber.com\/index.php?rest_route=\/wp\/v2\/media\/1710"}],"wp:attachment":[{"href":"https:\/\/destinationcyber.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1711"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/destinationcyber.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1711"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/destinationcyber.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1711"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}