Taw qhia ntawmSilicon Carbide
Silicon carbide (SIC) muaj qhov ceev ntawm 3.2g / cm3. Ntuj silicon carbide yog tsawg heev thiab feem ntau yog synthesized los ntawm txoj kev dag. Raws li qhov sib txawv ntawm cov qauv siv lead ua, silicon carbide tuaj yeem muab faib ua ob pawg: α SiC thiab β SiC. Qhov thib peb tiam semiconductor sawv cev los ntawm silicon carbide (SIC) muaj ntau zaus, kev ua haujlwm siab, siab zog, siab tsis kam, kub tsis kam thiab muaj zog tawg. Nws yog qhov tsim nyog rau cov kev xav tau tseem ceeb ntawm kev txuag hluav taws xob thiab txo qis emission, kev tsim khoom ntse thiab cov ntaub ntawv kev ruaj ntseg. Nws yog los txhawb kev ywj pheej innovation thiab kev loj hlob thiab kev hloov pauv ntawm cov tiam tshiab kev sib txuas lus mobile, lub zog tshiab tsheb, tsheb ciav hlau ceev ceev, lub zog Internet thiab lwm yam kev lag luam Cov khoom tseem ceeb hloov kho thiab cov khoom siv hluav taws xob tau dhau los ua qhov tseem ceeb ntawm lub ntiaj teb semiconductor technology thiab kev lag luam kev sib tw. . Xyoo 2020, lub ntiaj teb kev lag luam thiab kev lag luam qauv yog nyob rau lub sijhawm hloov kho, thiab ib puag ncig sab hauv thiab sab nraud ntawm Tuam Tshoj txoj kev lag luam yog qhov nyuaj thiab hnyav, tab sis tiam thib peb kev lag luam semiconductor hauv ntiaj teb tab tom loj hlob tawm tsam tus qauv. Nws yuav tsum raug lees paub tias kev lag luam silicon carbide tau nkag mus rau theem tshiab.
Silicon carbidedaim ntawv thov
Silicon carbide daim ntawv thov nyob rau hauv semiconductor kev lag luam silicon carbide semiconductor kev lag luam saw feem ntau suav nrog silicon carbide siab purity hmoov, ib qho siv lead ua substrate, epitaxial, lub zog ntaus ntawv, module ntim thiab daim ntawv thov davhlau ya nyob twg, thiab lwm yam.
1. ib leeg siv lead ua substrate yog cov khoom siv txhawb nqa, cov khoom siv hluav taws xob thiab kev loj hlob epitaxial substrate ntawm semiconductor. Tam sim no, txoj kev loj hlob ntawm SiC ib leeg siv lead ua suav nrog lub cev hloov pauv roj (PVT), theem ua kua (LPE), kub kub tshuaj vapor deposition (htcvd) thiab lwm yam. 2. epitaxial silicon carbide epitaxial daim ntawv hais txog kev loj hlob ntawm ib leeg siv lead ua zaj duab xis (epitaxial txheej) nrog qee qhov kev xav tau thiab kev taw qhia tib yam li cov substrate. Hauv daim ntawv thov, qhov dav band gap semiconductor li yuav luag tag nrho ntawm cov txheej txheem epitaxial, thiab silicon carbide chips lawv tus kheej tsuas yog siv los ua substrates, suav nrog Gan epitaxial txheej.
3. siab puritySiChmoov yog cov khoom siv raw rau kev loj hlob ntawm silicon carbide ib leeg siv lead ua los ntawm PVT txoj kev. Nws cov khoom purity ncaj qha cuam tshuam rau kev loj hlob zoo thiab hluav taws xob khoom ntawm SiC ib leeg siv lead ua.
4. lub tshuab fais fab yog ua los ntawm silicon carbide, uas muaj cov yam ntxwv ntawm kev kub siab ua haujlwm, siab zaus thiab kev ua haujlwm siab. Raws li daim ntawv ua haujlwm ntawm lub cuab yeej,SiCcov khoom siv hluav taws xob feem ntau suav nrog lub zog diodes thiab lub hwj chim hloov raj.
5. nyob rau hauv daim ntawv thov thib peb semiconductor, qhov zoo ntawm daim ntawv thov kawg yog tias lawv tuaj yeem ua tiav rau GaN semiconductor. Vim muaj qhov zoo ntawm kev hloov pauv siab, cov yam ntxwv cua sov qis thiab lub teeb yuag ntawm SiC cov khoom siv, qhov kev thov ntawm kev lag luam hauv qab txuas ntxiv nce ntxiv, uas muaj qhov sib txawv ntawm kev hloov SiO2 li. Qhov xwm txheej tam sim no ntawm silicon carbide kev lag luam kev lag luam yog tsis tu ncua. Silicon carbide ua tus thib peb tiam semiconductor kev lag luam daim ntawv thov. Cov khoom lag luam semiconductor thib peb tau nkag mus sai dua, daim ntawv thov kev lag luam tau nthuav dav tsis tu ncua, thiab kev lag luam loj hlob sai nrog kev tsim cov khoom siv hluav taws xob tsheb, 5g kev sib txuas lus, kev them nyiaj ceev ceev thiab kev siv tub rog. .
Post lub sij hawm: Mar-16-2021