\u6628\u65e5\u306e\u5186\u7b52\u578b\u306e\u30c8\u30e9\u30f3\u30b8\u30b9\u30bf\u306fGate-All-Around\u578b\u3068\u547c\u3073\u3001GAA-FET\u3068\u3044\u3046\u305d\u3046\u3067\u3059\u3002\u540c\u5fc3\u5186\u7b52\u72b6\u306b\u30d5\u30ed\u30fc\u30c6\u30a3\u30f3\u30b0\u30b2\u30fc\u30c8\u304c\u3042\u308b\u306e\u304c\u73fe\u5728\u306e\u30d5\u30e9\u30c3\u30b7\u30e5\u30e1\u30e2\u30ea\u306e\uff11\u30bb\u30eb\u3067\u3001\u6628\u65e5\u306e\u3088\u3046\u306b\u96fb\u8377\u306e\u91cf\u3067\u30c8\u30e9\u30f3\u30b8\u30b9\u30bf\u306eon\/off\u95be\u5024\u3092\u52d5\u304b\u3059\u3053\u3068\u306b\u3088\u308a\uff11\u30bb\u30eb\u5f53\u305f\u308a\uff13\u30d3\u30c3\u30c8\u306e\u60c5\u5831\u3092\u8a18\u61b6\u3067\u304d\u308b\u3068\u3044\u3046\u3082\u306e\u3067\u3059\u3002
\n\u30d9\u30eb\u30ae\u30fc\u306e\u7814\u7a76\u6a5f\u95a2 IMEC\u306e\u30ec\u30dd\u30fc\u30c8\u304c\u5206\u304b\u308a\u3084\u3059\u304b\u3063\u305f\u3067\u3059\u3002
\nhttps:\/\/www.imec-int.com\/en\/articles\/role-3d-nand-flash-and-fefet-data-storage-roadmap
\nFET\u306e\u30c1\u30e3\u30cd\u30eb\uff08\u534a\u5c0e\u4f53\uff09\u306f\u591a\u7d50\u6676\u30b7\u30ea\u30b3\u30f3\u3092\u591a\u5206SiH4\u304b\u3089CVD\uff08\u5316\u5b66\u6c17\u76f8\u84b8\u7740\u6cd5\uff09\u3067\u3064\u3051\u3066\u3044\u308b\u3088\u3046\u3067\u3059\u306d\u3002\u6211\u3005\u3082CVD\u306f\u65e5\u3005\u7814\u7a76\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u30b7\u30e9\u30f3(SiH4)\u306eCVD\u3067\u306f\u6c34\u7d20\u304cSi\u306e\u7d50\u5408\u624b\uff08\u30c0\u30f3\u30b0\u30ea\u30f3\u30b0\u30dc\u30f3\u30c9\uff09\u3092\u7d42\u7aef\u3057\u3066\u4e0d\u8981\u306a\u96fb\u8377\u306e\u767a\u751f\u3092\u6291\u3048\u3066\u304f\u308c\u308b\u306e\u3067\u6bd4\u8f03\u7684\u697d\u306a\u306e\u3060\u3068\u601d\u3044\u307e\u3059\u3002\u4ed6\u306e\u7269\u8cea\u3067\u306fH\u306b\u4ee3\u308f\u308b\u3082\u306e\u3092\u898b\u3064\u3051\u306a\u3051\u308c\u3070\u3044\u3051\u307e\u305b\u3093\uff08\u306a\u3044\u304b\u3082\u3057\u308c\u306a\u3044\uff09\u3002\u79c1\u306e\u672c\u696d\u306b\u304a\u3051\u308b\u6700\u8fd1\u306e\u95a2\u5fc3\u4e8b\u306e\u4e00\u3064\u3067\u3059\u3002\u6a2a\u65b9\u5411\u306e\u30e1\u30e2\u30ea\u30bb\u30eb\u30b5\u30a4\u30ba\u306f\u4eca\u5e744\u6708\u306e\u6bb5\u968e\u3067140nm\u3060\u305d\u3046\u3067\u3059\u3002\u3053\u308c\u309230nm\u307e\u3067\u5c0f\u3055\u304f\u3057\u3066\u3001\u3055\u3089\u306b\u6b21\u306f\u5186\u7b52\u3067\u306f\u306a\u304f\u3001\u5186\u7b52\u306e\u534a\u5206\u305a\u3064\u3092\u30c8\u30e9\u30f3\u30b8\u30b9\u30bf\u306b\u3057\u30662\u500d\u96c6\u7a4d\u5ea6\u3092\u4e0a\u3052\u308b\u3053\u3068\u3092\u8003\u3048\u3066\u3044\u308b\u3088\u3046\u3067\u3059\u3002<\/p>\n
“Another notable innovation was the replacement of the floating gate cell by a charge trap cell, which involves a more simplified process flow. The working principle of both cell types are relatively similar. But in a charge trapping cell, the trapping layer is an insulator \u2013 usually silicon nitride. This provides less electrostatic interference between neighboring cells. Such a charge trap cell is now the base of most 3D NAND structures.”
\n\u3068\u3042\u308b\u306e\u3067\u3001\u73fe\u5728\u306e3D-NAND flash memory\u306f\u5f53\u521d\u767a\u660e\u306e\u91d1\u5c5e(H\u306e\u5165\u3063\u3066\u3044\u306a\u3044poly Si)\u306efloating gate \u3067\u306f\u306a\u304f\u3001\u7d76\u7e01\u7269\u3067\u3042\u308b\u7a92\u5316\u30b7\u30ea\u30b3\u30f3\u306b\u3088\u308b\u96fb\u8377\u84c4\u7a4d\u3092\u4f7f\u3063\u3066\u3044\u308b\u3088\u3046\u3067\u3059\u3002SiO2\u3068HOMO, LUMO\u306e\u30a8\u30cd\u30eb\u30ae\u30fc\u6e96\u4f4d\u304c\u9055\u3046\u306e\u3067\u96fb\u8377\u304c\u30c8\u30e9\u30c3\u30d7\u3067\u304d\u308b\u306e\u3067\u3057\u3087\u3046\u3002<\/p>\n
flash memory\u3092\u542b\u3080\u6700\u65b0\u306e\u534a\u5c0e\u4f53\u88fd\u9020\u6280\u8853\u306b\u3064\u3044\u3066\u306f\u3001\u4e0b\u8a18\u306e\u6771\u4eac\u30a8\u30ec\u30af\u30c8\u30ed\u30f3(TEL)\u306eIR(=investors relations=\u6295\u8cc7\u5bb6\u5411\u3051\uff09\u8cc7\u6599\u304c\u975e\u5e38\u306b\u5145\u5b9f\u3057\u3066\u3044\u307e\u3059\u3002\u4e00\u90e8\u3053\u3053\u307e\u3067\u66f8\u3044\u3066\u3044\u3044\u306e\u304b\uff1f\u3068\u601d\u3046\u3068\u3053\u308d\u3082\u3042\u308a\u307e\u3059\u3002
\nhttps:\/\/www.tel.co.jp\/ir\/policy\/mplan\/cms-file\/IR_Day_20211012_J.pdf (pdf\u6ce8\u610f\uff09
\n\u89e3\u8aac\u306e\u3057\u3054\u305f\u3048\u306e\u3042\u308b\u8cc7\u6599\u3067\u3059\u3002\u660e\u65e5\u306f\u3001\u53e4\u5178\u3092\u304a\u4f11\u307f\u306b\u3057\u3066\u3053\u3053\u304b\u3089\u306a\u306b\u304b\u89e3\u8aac\u3057\u307e\u3057\u3087\u3046\u3002\u6765\u9031\u306f\u56fd\u969b\u4f1a\u8b70\u306e\u73fe\u5834\u306e\u304a\u4e16\u8a71\u3067\u8d70\u308a\u56de\u3089\u306a\u3044\u3068\u3044\u3051\u306a\u3044\u306e\u3067\u3001\u624b\u629c\u304d\u304c\u7d9a\u304d\u307e\u3059\u3002\u3054\u7406\u89e3\u304f\u3060\u3055\u3044\u3002<\/p>\n
\u82f1\u8a9e\u306f\u3000\u3000https:\/\/www.imec-int.com\/en\/articles\/role-3d-nand-flash-and-fefet-data-storage-roadmap\u3000\u304b\u3089\u62fe\u3063\u3066\u307f\u307e\u3059\u3002<\/p>\n
“the industry’s workhorse for data storage applications”
\nworkhorse \u99ac\u8eca\u99ac
\n“In the conventional computer memory hierarchy, NAND flash is located the furthest way from the CPU.”
\nconventional \u901a\u5e38\u306e\u3001\u5f93\u6765\u306e
\nhierarchy \u30cf\u30a4\u300c\u30a2\u300d\u30e9\u30fc\u30ad\u30fc\u3000\u968e\u5c64\u3000\u30d2\u30a8\u30e9\u30eb\u30ad\u30fc
\nfurthest \u6700\u3082\u9060\u3044
\n” It does this(increasing mobility of the channel) in two ways: by introducing alternative channel materials or improving the quality of the polysilicon channel.”
\nalternative \u30aa\u308b\u300c\u30bf\u300d\u30fc\u30ca\u30c6\u30a3\u30f4\u3000\u4ee3\u66ff\u306e
\nlatency \u300c\u308c\u300d\u30a4\u30c6\u30f3\u30b9\u30a3\u3000\u6f5c\u5728\u7684\u306a\u3001\u3067\u3059\u304c\u3001\u96fb\u5b50\u5de5\u5b66\u3067\u306f\u3000latency time \u53cd\u5fdc\u3059\u308b\u307e\u3067\u306e\u6f5c\u5728\u6642\u9593\u2192\u5f85\u3061\u6642\u9593\u3001\u9045\u5ef6\u6642\u9593\u3000\u3092\u7565\u3057\u3066 latency \u3068\u4f7f\u3046\u3088\u3046\u3067\u3059\u3002\u3000\u3000low-latency storage = \u4f4e\u9045\u5ef6\u8a18\u61b6\u7d20\u5b50\u3000\u3068\u3057\u306a\u3044\u3068\u610f\u5473\u304c\u901a\u3058\u307e\u305b\u3093\u3002
\nlatent \u6f5c\u5728\u7684\u306a\u3000\u300c\u308c\u300d\u30a4\u30c6\u30f3\u30c8\u3000\u3000latent heat\u3000\u6f5c\u71b1
\nthreshold \u3000\u3059\u300c\u30ec\u300d\u30c3\u30b7\u30e7\u30a6\u308b\u30c9\u3000\u95be\u5024\uff08\u96fb\u5b50\u5de5\u5b66\u3067\u306f\u300c\u3057\u304d\u3044\u3061\u300d\u3068\u8aad\u3080\u3053\u3068\u304c\u591a\u3044\u304c\u3001\u696d\u754c\uff08\u751f\u7269\u7cfb\uff1f\uff09\u306b\u3088\u3063\u3066\u306f\u300c\u3044\u304d\u3061\u300d\u3068\u3082\u8aad\u307f\u307e\u3059\uff09\u3000\u4e0b\u8a18\u306b\u3088\u308b\u3068\u3001\u6226\u524d\u3068\u6226\u5f8c\u3067\u3061\u304c\u3046\u3068\u306e\u3053\u3068\u3002\u96fb\u5b50\u5de5\u5b66\u306e\u307b\u3046\u304c\u65b0\u3057\u3044\u3068\u3044\u3046\u3053\u3068\u304b\uff1f
\nhttps:\/\/jp.quora.com\/%E9%96%BE%E5%80%A4%E3%81%AE%E8%AA%AD%E3%81%BF%E3%81%AF-%E3%81%AA%E3%81%9C-%E3%81%84%E3%81%8D%E3%81%A1-%E3%81%A8-%E3%81%97%E3%81%8D%E3%81%84%E3%81%A1-%E3%81%AE2%E3%81%A4%E3%81%8C%E3%81%82%E3%82%8B%E3%81%AE%E3%81%A7<\/p>\n","protected":false},"excerpt":{"rendered":"
\u6628\u65e5\u306e\u5186\u7b52\u578b\u306e\u30c8\u30e9\u30f3\u30b8\u30b9\u30bf\u306fGate-All-Around\u578b\u3068\u547c\u3073\u3001GAA-FET\u3068\u3044\u3046\u305d\u3046\u3067\u3059\u3002\u540c\u5fc3\u5186\u7b52\u72b6\u306b\u30d5\u30ed\u30fc\u30c6\u30a3\u30f3\u30b0\u30b2\u30fc\u30c8\u304c\u3042\u308b\u306e\u304c\u73fe\u5728\u306e\u30d5\u30e9\u30c3\u30b7\u30e5\u30e1\u30e2\u30ea\u306e\uff11\u30bb\u30eb\u3067\u3001\u6628\u65e5\u306e\u3088\u3046\u306b\u96fb\u8377\u306e\u91cf\u3067\u30c8\u30e9\u30f3\u30b8\u30b9\u30bf\u306eon\/off\u95be\u5024\u3092\u52d5\u304b\u3059\u3053\u3068\u306b\u3088\u308a\uff11\u30bb\u30eb\u5f53\u305f\u308a\uff13\u30d3\u30c3\u30c8\u306e\u60c5\u5831\u3092\u8a18\u61b6\u3067\u304d\u308b\u3068\u3044\u3046\u3082\u306e\u3067\u3059\u3002 \u30d9\u30eb\u30ae\u30fc\u306e\u7814\u7a76\u6a5f\u95a2 IMEC\u306e\u30ec\u30dd\u30fc\u30c8\u304c\u5206\u304b\u308a\u3084\u3059\u304b\u3063\u305f\u3067\u3059\u3002 https:\/\/www.imec-int.com\/en\/articles\/role-3d-nand-flash-and-fefet-data-storage-roadmap FET\u306e\u30c1\u30e3\u30cd\u30eb\uff08\u534a\u5c0e\u4f53\uff09\u306f\u591a\u7d50\u6676\u30b7\u30ea\u30b3\u30f3\u3092\u591a\u5206SiH4\u304b\u3089C…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[42,44],"tags":[5,7],"class_list":["post-1540","post","type-post","status-publish","format-standard","hentry","category-tech","category-materials","tag-tech","tag-materials"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.sekaiken.com\/index.php?rest_route=\/wp\/v2\/posts\/1540","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.sekaiken.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.sekaiken.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.sekaiken.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.sekaiken.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1540"}],"version-history":[{"count":0,"href":"https:\/\/www.sekaiken.com\/index.php?rest_route=\/wp\/v2\/posts\/1540\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.sekaiken.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1540"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.sekaiken.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1540"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.sekaiken.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1540"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}