Peb feeb kom paub txog silicon carbide (SIC)

Kev Taw Qhia ntawmSilicon Carbide

Silicon carbide (SIC) muaj qhov ceev ntawm 3.2g / cm3. Cov silicon carbide ntuj tsis tshua muaj thiab feem ntau yog synthesized los ntawm txoj kev dag. Raws li kev faib tawm sib txawv ntawm cov qauv siv lead ua, silicon carbide tuaj yeem muab faib ua ob pawg: α SiC thiab β SiC. Lub semiconductor tiam thib peb uas sawv cev los ntawm silicon carbide (SIC) muaj zaus siab, ua haujlwm siab, muaj zog siab, tiv taus siab, tiv taus kub siab thiab tiv taus hluav taws xob muaj zog. Nws yog qhov tsim nyog rau cov kev xav tau tseem ceeb ntawm kev txuag hluav taws xob thiab txo qis kev tso pa tawm, kev tsim khoom ntse thiab kev ruaj ntseg ntawm cov ntaub ntawv. Nws yog los txhawb kev tsim kho tshiab thiab kev txhim kho thiab kev hloov pauv ntawm kev sib txuas lus mobile tiam tshiab, tsheb fais fab tshiab, tsheb ciav hlau ceev ceev, internet hluav taws xob thiab lwm yam lag luam. Cov ntaub ntawv tseem ceeb thiab cov khoom siv hluav taws xob tau dhau los ua qhov tseem ceeb ntawm kev siv tshuab semiconductor thoob ntiaj teb thiab kev sib tw hauv kev lag luam. Xyoo 2020, tus qauv kev lag luam thoob ntiaj teb thiab kev lag luam nyob rau lub sijhawm ntawm kev kho dua tshiab, thiab ib puag ncig sab hauv thiab sab nraud ntawm Tuam Tshoj kev lag luam yog qhov nyuaj dua thiab hnyav dua, tab sis kev lag luam semiconductor tiam thib peb hauv ntiaj teb tab tom loj hlob tawm tsam qhov sib txawv. Nws yuav tsum tau lees paub tias kev lag luam silicon carbide tau nkag mus rau theem kev txhim kho tshiab.

Silicon carbidedaim ntawv thov

Daim ntawv thov silicon carbide hauv kev lag luam semiconductor silicon carbide semiconductor kev lag luam saw feem ntau suav nrog silicon carbide hmoov purity siab, ib qho siv lead ua substrate, epitaxial, lub zog fais fab, 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 conductive thiab epitaxial kev loj hlob substrate ntawm semiconductor. Tam sim no, cov txheej txheem kev loj hlob ntawm SiC ib leeg siv lead ua suav nrog kev hloov pauv roj lub cev (PVT), theem kua (LPE), kub siab tshuaj vapor deposition (htcvd) thiab lwm yam. 2. epitaxial silicon carbide epitaxial ntawv hais txog kev loj hlob ntawm ib leeg siv lead ua zaj duab xis (epitaxial txheej) nrog qee qhov kev xav tau thiab tib qho kev taw qhia li lub substrate. Hauv kev siv ua haujlwm, cov khoom siv semiconductor dav dav yuav luag txhua tus nyob rau ntawm epitaxial txheej, thiab silicon carbide chips lawv tus kheej tsuas yog siv ua substrates, suav nrog Gan epitaxial txheej.

3. kev huv siabSiCHmoov 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 qhov zoo ntawm kev loj hlob thiab cov khoom siv hluav taws xob ntawm SiC ib leeg siv lead ua.

4. Lub cuab yeej fais fab yog ua los ntawm silicon carbide, uas muaj cov yam ntxwv ntawm kev tiv taus kub siab, zaus siab thiab ua haujlwm tau zoo. Raws li daim ntawv ua haujlwm ntawm lub cuab yeej,SiCCov khoom siv fais fab feem ntau suav nrog cov diodes fais fab thiab cov raj hloov fais fab.

5. Hauv daim ntawv thov semiconductor tiam thib peb, qhov zoo ntawm daim ntawv thov kawg yog tias lawv tuaj yeem ua tiav GaN semiconductor. Vim yog qhov zoo ntawm kev hloov pauv siab, cov yam ntxwv cua sov qis thiab lub teeb ntawm SiC cov khoom siv, qhov kev thov ntawm kev lag luam downstream txuas ntxiv mus nce, uas muaj qhov sib txawv ntawm kev hloov SiO2 cov khoom siv. Qhov xwm txheej tam sim no ntawm kev lag luam silicon carbide kev loj hlob tsis tu ncua. Silicon carbide ua tus thawj coj ntawm kev lag luam semiconductor kev loj hlob peb tiam. Cov khoom lag luam semiconductor tiam thib peb tau nkag mus sai dua, cov teb thov tau nthuav dav tsis tu ncua, thiab kev lag luam loj hlob sai nrog kev txhim kho ntawm cov khoom siv hluav taws xob hauv tsheb, kev sib txuas lus 5g, kev them fais fab sai thiab kev siv tub rog. .