Raws li hom tshiab ntawm cov khoom siv semiconductor, SiC tau dhau los ua cov khoom siv semiconductor tseem ceeb tshaj plaws rau kev tsim cov khoom siv hluav taws xob luv luv optoelectronic, cov cuab yeej kub kub, cov khoom siv hluav taws xob tiv thaiv hluav taws xob thiab cov khoom siv hluav taws xob siab / lub zog hluav taws xob vim nws cov khoom zoo heev ntawm lub cev thiab tshuaj. hluav taws xob khoom. Tshwj xeeb tshaj yog thaum siv nyob rau hauv huab cua thiab hnyav, cov yam ntxwv ntawm SiC li deb tshaj cov Si li thiab GaAs li. Yog li ntawd, SiC cov cuab yeej thiab ntau hom sensors tau maj mam dhau los ua ib qho ntawm cov khoom siv tseem ceeb, ua lub luag haujlwm tseem ceeb dua.
SiC cov khoom siv thiab cov khoom siv hluav taws xob tau tsim sai heev txij li xyoo 1980s, tshwj xeeb tshaj yog txij li xyoo 1989 thaum thawj SiC substrate wafer nkag mus rau hauv kev ua lag luam. Hauv qee qhov chaw, xws li lub teeb-emitting diodes, high-frequency high-power thiab high-voltage devices, SiC li tau siv dav hauv kev lag luam. Txoj kev loj hlob sai. Tom qab ze li ntawm 10 xyoo ntawm txoj kev loj hlob, SiC cov txheej txheem tau tuaj yeem tsim cov khoom lag luam. Ntau lub tuam txhab sawv cev los ntawm Cree tau pib muab cov khoom lag luam ntawm SiC cov khoom siv. Cov koom haum tshawb fawb hauv tsev thiab cov tsev kawm qib siab kuj tau ua kom muaj txiaj ntsig zoo hauv SiC cov khoom loj hlob thiab cov cuab yeej tsim khoom siv. Txawm hais tias cov khoom siv SiC muaj lub cev zoo tshaj plaws thiab tshuaj lom neeg, thiab SiC cov cuab yeej siv tshuab kuj paub tab, tab sis kev ua haujlwm ntawm SiC cov khoom siv thiab cov circuits tsis zoo dua. Ntxiv rau SiC cov khoom siv thiab cov txheej txheem ntawm cov cuab yeej yuav tsum tau txhim kho tas li. Kev siv zog ntau dua yuav tsum tau muab tso rau hauv yuav ua li cas kom tau txais txiaj ntsig ntawm SiC cov ntaub ntawv los ntawm kev ua kom zoo dua S5C cov qauv khoom siv lossis nthuav tawm cov qauv cuab yeej tshiab.
Tam sim no. Kev tshawb fawb ntawm SiC cov khoom siv feem ntau tsom rau cov khoom siv sib cais. Rau txhua hom khoom siv, kev tshawb fawb thawj zaug tsuas yog hloov pauv cov khoom siv Si lossis GaAs sib xws rau SiC yam tsis tau ua kom zoo dua cov qauv siv. Txij li cov txheej txheem oxide ntawm SiC yog tib yam li Si, uas yog SiO2, nws txhais tau hais tias feem ntau Si cov cuab yeej, tshwj xeeb tshaj yog cov khoom siv m-pa, tuaj yeem tsim tawm ntawm SiC. Txawm hais tias nws tsuas yog hloov pauv yooj yim xwb, qee qhov ntawm cov cuab yeej tau txais tau ua tiav cov txiaj ntsig zoo, thiab qee qhov ntawm cov cuab yeej tau nkag mus rau hauv lub Hoobkas lag luam.
SiC optoelectronic li, tshwj xeeb tshaj yog xiav lub teeb emitting diodes (BLU-duab tshav leds), tau nkag mus rau hauv lub lag luam nyob rau hauv thaum ntxov 1990s thiab yog thawj loj-tsim SiC li. High voltage SiC Schottky diodes, SiC RF fais fab transistors, SiC MOSFETs thiab mesFETs kuj muaj muag. Yog lawm, kev ua tau zoo ntawm tag nrho cov khoom SiC no nyob deb ntawm kev ua si ntawm cov yam ntxwv ntawm SiC cov ntaub ntawv, thiab kev ua haujlwm muaj zog thiab kev ua haujlwm ntawm SiC cov cuab yeej tseem yuav tsum tau tshawb nrhiav thiab tsim. Cov kev hloov pauv yooj yim no feem ntau tsis tuaj yeem siv tag nrho cov txiaj ntsig ntawm SiC cov ntaub ntawv. Txawm nyob rau thaj tsam ntawm qee qhov zoo ntawm SiC li. Qee yam ntawm SiC cov khoom siv thaum pib tsim tsis tuaj yeem ua tau raws li kev ua tau zoo ntawm Si los yog CaAs sib xws.
Txhawm rau kom hloov pauv qhov zoo ntawm SiC cov yam ntxwv rau hauv qhov zoo ntawm SiC cov cuab yeej, tam sim no peb tab tom kawm yuav ua li cas txhawm rau txhim kho cov txheej txheem tsim khoom thiab cov khoom siv lossis tsim cov qauv tshiab thiab cov txheej txheem tshiab los txhim kho cov haujlwm thiab kev ua haujlwm ntawm SiC cov khoom siv.
Post lub sij hawm: Aug-23-2022