Kupanga ndi chitukuko cha zipangizo zosungirako zosasunthika za deta ya digito zakhala zikuchitika kwa zaka zambiri. Kupambana kwenikweni kudapangidwa zaka zosakwana 20 zapitazo ndi kukumbukira kwa NAND, ngakhale kukula kwake kudayamba zaka 20 m'mbuyomo. Masiku ano, pafupifupi theka la zana pambuyo poyambira kafukufuku wamkulu, kuyambika kwa kupanga ndi kuyesetsa kosalekeza kukonza NAND, kukumbukira kwamtunduwu kuli pafupi kuthetsa kuthekera kwake kwachitukuko. Ndikoyenera kuyala maziko a kusintha kwa selo lina la kukumbukira ndi mphamvu zabwino, liwiro ndi makhalidwe ena. M'kupita kwa nthawi, kukumbukira koteroko kungakhale mtundu watsopano wa kukumbukira kwa ferroelectric.
Ferroelectrics (mawu akuti ferroelectrics amagwiritsidwa ntchito m'mabuku akunja) ndi ma dielectrics omwe amakumbukira malo amagetsi omwe amagwiritsidwa ntchito kapena, mwa kuyankhula kwina, amadziwika ndi kutsalira kwamitengo. Kukumbukira kwa Ferroelectric sichachilendo. Chovuta chinali kutsitsa ma cell a ferroelectric mpaka mulingo wa nanoscale.
Zaka zitatu zapitazo, asayansi ku MIPT Ukadaulo wopangira zinthu zoonda zafilimu zokumbukira ferroelectric zochokera ku hafnium oxide (HfO2). Izinso sizinthu zapadera. Dielectric iyi yakhala ikugwiritsidwa ntchito kwa zaka zisanu motsatizana kupanga ma transistors okhala ndi zipata zachitsulo mu mapurosesa ndi malingaliro ena a digito. Kutengera mafilimu a alloy polycrystalline a hafnium ndi zirconium oxides okhala ndi makulidwe a 2,5 nm omwe akufunsidwa ku MIPT, zinali zotheka kupanga masinthidwe okhala ndi ferroelectric properties.
Kuti ma capacitor a ferroelectric (monga momwe adayambira kutchedwa MIPT) agwiritsidwe ntchito ngati ma cell a kukumbukira, ndikofunikira kukwaniritsa polarization yapamwamba kwambiri, yomwe imafuna kuphunzira mwatsatanetsatane momwe thupi limakhalira mu nanolayer. Makamaka, dziwani za kugawidwa kwa mphamvu zamagetsi mkati mwa wosanjikiza pamene magetsi agwiritsidwa ntchito. Mpaka posachedwa, asayansi amangodalira zida za masamu kuti afotokoze zochitikazo, ndipo tsopano njira yokhayo yakhazikitsidwa yomwe inali kotheka kuyang'ana mkati mwa zinthuzo panthawi ya zochitikazo.
Njira yomwe akufunsidwayo, yozikidwa pa mawonedwe amphamvu a X-ray photoelectron spectroscopy, ingagwiritsidwe ntchito pa kukhazikitsa kwapadera (synchrotron accelerators). Malo awa ali ku Hamburg (Germany). Zoyesera zonse za "ferroelectric capacitors" za hafnium oxide zopangidwa ku MIPT zidachitika ku Germany. Nkhani yokhudzana ndi ntchito yomwe idachitika idasindikizidwa mu .
"Ferroelectric capacitor yomwe idapangidwa mu labotale yathu, ngati imagwiritsidwa ntchito popanga ma cell okumbukira osasinthika, imatha kupereka zozungulira 1010 - kuwirikiza ka XNUMX kuposa momwe ma drive amakompyuta amakono amalola," akutero Andrei Zenkevich, m'modzi mwa olemba bukuli. ntchito, mutu wa labotale ya zida zogwirira ntchito ndi zida za nanoelectronics MIPT. Chotero, sitepe ina yatengedwa kulinga ku chikumbukiro chatsopano, ngakhale kuti pali njira zambiri, zambiri zoti zichitidwe.
Source: 3dnews.ru