SiC wafers yog semiconductors ua los ntawm silicon carbide. Cov khoom no tau tsim nyob rau hauv 1893 thiab yog qhov zoo tagnrho rau ntau yam kev siv. Tshwj xeeb tshaj yog tsim rau Schottky diodes, hlws ris barrier Schottky diodes, keyboards thiab hlau-oxide-semiconductor teb-zoo transistors. Vim nws cov hardness siab, nws yog ib qho kev xaiv zoo heev rau cov khoom siv hluav taws xob hluav taws xob.
Tam sim no, muaj ob hom tseem ceeb ntawm SiC wafers. Thawj yog polished wafer, uas yog ib qho silicon carbide wafer. Nws yog ua los ntawm siab purity SiC crystals thiab tuaj yeem ua 100mm lossis 150mm inch. Nws yog siv hauv cov khoom siv hluav taws xob hluav taws xob siab. Qhov thib ob yog epitaxial crystal silicon carbide wafer. Hom wafer no yog tsim los ntawm kev ntxiv ib txheej ntawm silicon carbide crystals rau saum npoo. Txoj kev no yuav tsum tau tswj xyuas qhov tuab ntawm cov khoom siv thiab hu ua N-hom epitaxy.
Lwm hom yog beta silicon carbide. Beta SiC yog tsim los ntawm qhov kub siab tshaj 1700 degrees Celsius. Alpha carbides feem ntau muaj thiab muaj cov qauv siv lead ua hexagonal zoo ib yam li wurtzite. Daim ntawv beta zoo ib yam li pob zeb diamond thiab siv rau hauv qee daim ntawv thov. Nws yeej ib txwm yog thawj qhov kev xaiv rau hluav taws xob tsheb fais fab semi-tiav khoom. Ntau tus neeg thib peb cov khoom siv silicon carbide wafer tab tom ua haujlwm ntawm cov khoom tshiab no.
ZMSH SiC wafers yog cov khoom siv semiconductor nrov heev. Nws yog cov khoom siv semiconductor zoo uas haum rau ntau yam kev siv. ZMSH silicon carbide wafers yog cov khoom siv tau zoo rau ntau yam khoom siv hluav taws xob. ZMSH muab ntau yam zoo SiC wafers thiab substrates. Lawv muaj nyob rau hauv N-hom thiab semi-insulated daim ntawv.
2---Silicon Carbide: Mus rau lub sijhawm tshiab ntawm wafers
Lub cev muaj zog thiab cov yam ntxwv ntawm silicon carbide
Silicon carbide muaj cov qauv siv lead ua tshwj xeeb, siv lub hexagonal kaw-packed qauv zoo ib yam li pob zeb diamond. Cov qauv no ua rau silicon carbide kom muaj thermal conductivity zoo heev thiab kub tsis kam. Piv nrog rau cov khoom siv silicon ib txwm muaj, silicon carbide muaj qhov sib txawv loj dua, uas muab cov khoom siv hluav taws xob ntau dua, ua rau muaj hluav taws xob ntau dua thiab qis dua tam sim no. Tsis tas li ntawd, silicon carbide kuj muaj ntau dua electron saturation drift ceev thiab qis dua ntawm cov khoom nws tus kheej, muab kev ua tau zoo dua rau kev siv hluav taws xob siab.
Cov ntaub ntawv thov thiab kev cia siab ntawm silicon carbide wafers
Kev siv hluav taws xob hluav taws xob
Silicon carbide wafer muaj daim ntawv thov dav dav hauv hluav taws xob hluav taws xob. Vim lawv lub zog hluav taws xob siab thiab zoo thermal conductivity, SIC wafers tuaj yeem siv los tsim cov khoom siv hluav taws xob muaj zog, xws li cov khoom siv hluav taws xob rau cov tsheb hluav taws xob thiab hnub ci inverters. Qhov kub siab ruaj khov ntawm silicon carbide wafers ua rau cov khoom siv no ua haujlwm hauv qhov kub thiab txias, muab kev ua haujlwm zoo dua thiab kev ntseeg siab.
Kev siv Optoelectronic
Hauv thaj chaw ntawm cov khoom siv optoelectronic, silicon carbide wafers qhia lawv qhov zoo. Cov khoom siv silicone carbide muaj cov yam ntxwv sib txawv ntawm qhov sib txawv, uas ua rau nws ua tiav lub zog photonon siab thiab tsis muaj lub teeb poob hauv cov khoom siv optoelectronic. Silicon carbide wafers tuaj yeem siv los npaj cov khoom siv sib txuas lus ceev, photodetectors thiab lasers. Nws cov thermal conductivity zoo heev thiab qis siv lead ua tsis xws luag ua rau nws zoo tagnrho rau kev npaj cov khoom siv optoelectronic zoo.
Outlook
Nrog rau qhov kev thov loj zuj zus rau cov khoom siv hluav taws xob ua tau zoo, silicon carbide wafers muaj kev cia siab rau yav tom ntej raws li cov khoom siv nrog cov khoom zoo thiab muaj peev xwm siv dav. Nrog rau kev txhim kho txuas ntxiv ntawm kev npaj thev naus laus zis thiab txo tus nqi, kev lag luam daim ntawv thov ntawm silicon carbide wafers yuav raug txhawb nqa. Nws cia siab tias nyob rau hauv ob peb xyoos tom ntej no, silicon carbide wafers yuav maj mam nkag mus rau hauv kev ua lag luam thiab dhau los ua cov kev xaiv tseem ceeb rau lub zog siab, siab zaus thiab kub siab.
3---Kev tsom xam qhov tob ntawm SiC wafer kev lag luam thiab kev siv thev naus laus zis
Kev tsom xam qhov tob ntawm silicon carbide (SiC) wafer kev lag luam tsav tsheb
Kev loj hlob ntawm silicon carbide (SiC) wafer kev ua lag luam yog cuam tshuam los ntawm ntau yam tseem ceeb, thiab kev tsom xam qhov tob ntawm qhov cuam tshuam ntawm cov khoom lag luam no tseem ceeb heev. Nov yog qee qhov kev lag luam tseem ceeb tsav tsheb:
Kev txuag hluav taws xob thiab kev tiv thaiv ib puag ncig: Kev ua haujlwm siab thiab kev siv hluav taws xob tsawg ntawm cov khoom siv silicon carbide ua rau nws nrov hauv kev txuag hluav taws xob thiab kev tiv thaiv ib puag ncig. Qhov kev thov rau lub tsheb hluav taws xob, hnub ci inverters thiab lwm yam khoom siv hluav taws xob hloov pauv yog tsav kev lag luam loj hlob ntawm silicon carbide wafers vim nws pab txo cov khoom siv hluav taws xob.
Kev siv hluav taws xob hluav taws xob: Silicon carbide ua tau zoo hauv kev siv hluav taws xob hluav taws xob thiab tuaj yeem siv rau hauv hluav taws xob hluav taws xob nyob rau hauv qhov kub siab thiab kub ib puag ncig. Nrog rau qhov nrov ntawm lub zog tauj dua tshiab thiab txhawb kev hloov hluav taws xob hloov hluav taws xob, qhov kev thov rau silicon carbide wafers hauv lub zog hluav taws xob ua lag luam tseem nce ntxiv.
SiC wafers yav tom ntej kev tsim technology kev loj hlob qauv kev soj ntsuam ntxaws
Kev tsim khoom loj thiab txo tus nqi: Yav tom ntej SiC wafer manufacturing yuav tsom ntau rau kev tsim khoom loj thiab txo nqi. Qhov no suav nrog kev txhim kho kev loj hlob xws li tshuaj vapor deposition (CVD) thiab lub cev vapor deposition (PVD) kom muaj peev xwm ua tau thiab txo cov nqi tsim khoom. Tsis tas li ntawd, kev txais yuav cov txheej txheem tsim khoom ntse thiab automated yuav tsum ua kom zoo dua ntxiv.
Tshiab wafer loj thiab qauv: Qhov loj thiab qauv ntawm SiC wafers yuav hloov nyob rau hauv lub neej yav tom ntej kom tau raws li cov kev xav tau ntawm cov kev siv sib txawv. Qhov no yuav suav nrog cov kab loj dua, cov qauv sib txawv, lossis ntau txheej wafers los muab kev tsim qauv yooj yim thiab kev xaiv ua haujlwm.
Energy Efficiency thiab Green Manufacturing: Kev tsim khoom ntawm SiC wafers yav tom ntej yuav muab qhov tseem ceeb dua rau kev siv hluav taws xob thiab kev tsim ntsuab. Factories powered los ntawm lub zog tauj dua tshiab, cov ntaub ntawv ntsuab, pov tseg rov ua dua tshiab thiab cov txheej txheem tsim cov pa roj carbon tsawg yuav dhau los ua kev tsim khoom.
Post lub sij hawm: Jan-19-2024