{"id":53384,"date":"2019-11-30T00:00:00","date_gmt":"2019-11-29T21:00:00","guid":{"rendered":"https:\/\/prohoster.info\/blog\/blog_prohoster\/uchenye-iz-mfti-sdelali-shag-k-poyavleniyu-novoj-fleshki"},"modified":"2020-02-18T14:01:17","modified_gmt":"2020-02-18T11:01:17","slug":"uchenye-iz-mfti-sdelali-shag-k-poyavleniyu-novoj-fleshki","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/uchenye-iz-mfti-sdelali-shag-k-poyavleniyu-novoj-fleshki","title":{"rendered":"V\u011bdci z MFTI ud\u011blali krok k v\u00fdvoji nov\u00e9 \"flashky\"","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Vytv\u00e1\u0159en\u00ed a v\u00fdvoj za\u0159\u00edzen\u00ed pro ulo\u017een\u00ed digit\u00e1ln\u00edch dat s energetickou nez\u00e1vislost\u00ed prob\u00edh\u00e1 ji\u017e des\u00edtky let. Skute\u010dn\u00fd pr\u016flom nastal p\u0159ed necel\u00fdmi 20 lety s typem pam\u011bti NAND, p\u0159i\u010dem\u017e jej\u00ed v\u00fdvoj zapo\u010dal o 20 let d\u0159\u00edve. Dnes, p\u0159ibli\u017en\u011b p\u016fl stolet\u00ed po zah\u00e1jen\u00ed rozs\u00e1hl\u00e9ho v\u00fdzkumu, v\u00fdroby a st\u00e1l\u00e9ho \u00fasil\u00ed o zlep\u0161en\u00ed NAND, je tento typ pam\u011bti bl\u00edzko vy\u010derp\u00e1n\u00ed sv\u00fdch mo\u017enost\u00ed pro rozvoj. Je nezbytn\u00e9 polo\u017eit z\u00e1klady pro p\u0159echod k jin\u00e9 pam\u011b\u0165ov\u00e9 bu\u0148ce s lep\u0161\u00edmi energetick\u00fdmi, rychlostn\u00edmi a dal\u0161\u00edmi charakteristikami. V dlouhodob\u00e9m horizontu by takovou pam\u011bt\u00ed mohla b\u00fdt nov\u00e1 typ segmentoelektrick\u00e1 pam\u011b\u0165.<\/p>\n

\"V\u011bdci<\/p>\n

Segmentoelektrika (v zahrani\u010dn\u00ed literatu\u0159e se pou\u017e\u00edv\u00e1 term\u00edn ferroelectricity) jsou dielektrika, kter\u00e1 si pamatuj\u00ed p\u0159ilo\u017een\u00e9 elektrick\u00e9 pole, nebo jin\u00fdmi slovy, charakterizuj\u00ed se zbytkovou polarizac\u00ed n\u00e1boj\u016f. Pam\u011bti na segmentoelektrik\u00e1ch nejsou ni\u010d\u00edm nov\u00fdm. Probl\u00e9mem bylo zmen\u0161it m\u011b\u0159\u00edtko segmentoelektrick\u00fdch bun\u011bk na nanometrovou \u00farove\u0148.<\/p>\n

P\u0159ed t\u0159emi lety v\u011bdci na MFTI p\u0159edstavili<\/a><\/noindex> vyvinuli technologii v\u00fdroby tenkovrstv\u00e9ho materi\u00e1lu pro segmentoelektrickou pam\u011b\u0165 na b\u00e1zi oxid\u016f hafnia (HfO2). To tak\u00e9 nen\u00ed unik\u00e1tn\u00ed materi\u00e1l. Tento dielektrik byl n\u011bkolik desetilet\u00ed pou\u017e\u00edvan\u00fd pro v\u00fdrobu tranzistor\u016f s kovov\u00fdmi br\u00e1nami v procesorech a jin\u00e9 digit\u00e1ln\u00ed logice. Na z\u00e1klad\u011b v MFTI navr\u017een\u00fdch slitin polykrystalick\u00fdch vrstev oxid\u016f hafnia a zirkonia o tlou\u0161\u0165ce 2,5 nm se poda\u0159ilo vytvo\u0159it p\u0159echody se segmentoelektrick\u00fdmi vlastnostmi.<\/p>\n

<\/center><\/p>\n

Aby bylo mo\u017en\u00e9 vyu\u017e\u00edt segmentoelektrick\u00e9 kondenz\u00e1tory (tak je za\u010dali naz\u00fdvat v MFTI) jako pam\u011b\u0165ov\u00e9 bu\u0148ky, je nutn\u00e9 dos\u00e1hnout maxim\u00e1ln\u00ed mo\u017en\u00e9 polarizace, pro co\u017e je t\u0159eba podrobn\u00e9 studium fyzik\u00e1ln\u00edch proces\u016f v nanosl\u00e9. Zejm\u00e9na z\u00edskat p\u0159edstavu o rozlo\u017een\u00ed elektrick\u00e9ho potenci\u00e1lu uvnit\u0159 vrstvy p\u0159i aplikaci nap\u011bt\u00ed. A\u017e doned\u00e1vna se v\u011bdci mohli op\u00edrat pouze o matematick\u00fd apar\u00e1t pro popis tohoto jevu, a teprve nyn\u00ed byla realizov\u00e1na metoda, kter\u00e1 doslova umo\u017enila nahl\u00e9dnout dovnit\u0159 materi\u00e1lu v pr\u016fb\u011bhu jevu.<\/p>\n

\"V\u011bdci<\/p>\n

Navrhovan\u00e1 metoda, kter\u00e1 se op\u00edr\u00e1 o vysoce energetickou rentgenovou fotoelektronovou spektroskopii, mohla b\u00fdt realizov\u00e1na pouze na speci\u00e1ln\u00edm za\u0159\u00edzen\u00ed (synchrotronech). Takov\u00e9 se nach\u00e1z\u00ed v Hamburku (SRN). V\u0161echny experimenty s vyroben\u00fdmi v MFTI \"segnetoelektrick\u00fdmi kondenz\u00e1tory\" na b\u00e1zi oxidu hafnia prob\u011bhly v N\u011bmecku. \u010cl\u00e1nek o proveden\u00e9 pr\u00e1ci byl publikov\u00e1n v Nanoscale<\/a><\/noindex>.<\/p>\n

\"Die in unserem Labor entwickelten ferroelektrischen Kondensatoren k\u00f6nnten, wenn sie f\u00fcr die industrielle Herstellung von nichtfl\u00fcchtigem Arbeitsspeicher eingesetzt werden, 10^10 Schreibzyklen erm\u00f6glichen \u2013 das ist hunderttausend Mal mehr als die heutigen Computer-Flash-Speicher erlauben\", erkl\u00e4rt Andrej Zenkevich, einer der Autoren der Studie und Leiter des Labors f\u00fcr funktionale Materialien und Ger\u00e4te f\u00fcr Nanoelektronik an der MFTI. Damit wurde ein weiterer Schritt zur neuen Speichertechnologie unternommen, obwohl noch viele weitere Schritte n\u00f6tig sind.<\/p>\n

<\/p>\n

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Zdroj: 3dnews.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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