Kusikwa uye kuvandudzwa kwemidziyo yekusagadzikana yekuchengetedza yedhijitari data kwave kuenderera kwemakumi emakore akawanda. Kubudirira chaiko kwakaitwa makore asingasviki makumi maviri apfuura neNAND ndangariro, kunyangwe budiriro yayo yakatanga makore makumi maviri apfuura. Nhasi, inenge hafu yezana remakore mushure mekutanga kwekutsvaga kukuru, kutanga kwekugadzira uye kuedza nguva dzose kuvandudza NAND, rudzi urwu rwekuyeuka rwave pedyo nekupedza simba rayo rekusimudzira. Izvo zvinodikanwa kuisa hwaro hweshanduko kune imwe ndangariro sero ine simba riri nani, kumhanya uye mamwe maitiro. Mukufamba kwenguva, chiyeuchidzo chakadaro chinogona kunge chiri rudzi rutsva rwe ferroelectric memory.
Ferroelectrics (izwi rekuti ferroelectrics rinoshandiswa muzvinyorwa zvekunze) madhielectrics ane ndangariro yenzvimbo yemagetsi inoshandiswa kana, nemamwe mazwi, anoratidzirwa nekusara polarization yemhosva. Ferroelectric memory hachisi chinhu chitsva. Dambudziko raive rekuyera maseru eferroelectric kusvika padanho re nanoscale.
Makore matatu apfuura, masayendisiti kuMIPT tekinoroji yekugadzira yakaonda-firimu zvinhu zveferroelectric memory yakavakirwa pahafnium oxide (HfO2). Izvi zvakare hazvisi zvinhu zvega. Iyi dielectric yakashandiswa kwemakore akati wandei akatevedzana kugadzira transistors nemagedhi esimbi muma processors uye mamwe madhijitari mantiki. Kubva pane alloy polycrystalline mafirimu ehafnium uye zirconium oxides ane ukobvu hwe2,5 nm yakatsanangurwa paMIPT, zvakakwanisika kugadzira shanduko ine ferroelectric properties.
Kuti ferroelectric capacitors (sezvavakatanga kudanwa kuMIPT) kuti ishandiswe semasero ekurangarira, zvinodikanwa kuti uwane iyo yepamusoro inogoneka polarization, inoda ongororo yakadzama yemaitiro emuviri mune nanolayer. Kunyanya, wana zano rekugovera kwemagetsi kugona mukati meiyo layer kana voltage yaiswa. Kusvika nguva pfupi yadarika, masayendisiti aingogona kuvimba nemidziyo yemasvomhu kutsanangura chiitiko ichi, uye chete ikozvino nzira yakashandiswa iyo yaigoneka chaizvo kutarisa mukati mechinhu panguva yechiitiko ichi.
Nzira yakarongwa, iyo yakavakirwa pa-high-energy X-ray photoelectron spectroscopy, inogona kushandiswa chete pakuiswa kwakakosha (synchrotron accelerators). Iyi iri muHamburg (Germany). Kuedza kwese nehafnium oxide-based "ferroelectric capacitors" yakagadzirwa kuMIPT yakaitika kuGermany. Chinyorwa pamusoro pebasa rakaitwa chakabudiswa mukati .
"Ferroelectric capacitors akagadzirwa murabhoritari yedu, kana akashandiswa kugadzirwa kwemaindasitiri easina kushanduka endangariro maseru, anogona kupa 1010 kunyorazve kutenderera - zana rezviuru zvakapetwa kupfuura anotendera macomputer emazuva ano madhiraivha," anodaro Andrei Zenkevich, mumwe wevanyori vebhuku. basa, mukuru werabhoritari yezvinhu zvinoshanda uye zvishandiso zve nanoelectronics MIPT. Nokudaro, rimwe danho rakatorwa kundangariro itsva, kunyange zvazvo kuchine nhano dzakawanda, dzakawanda dzinofanira kutorwa.
Source: 3dnews.ru