Iyini iwafa ye-SiC?

Ama-wafers e-SiC angama-semiconductors enziwe nge-silicon carbide.Le nto yasungulwa ngo-1893 futhi ilungele ukusetshenziswa okuhlukahlukene.Ifaneleka kakhulu i-Schottky diode, i-junction barrier Schottky diode, amaswishi nama-metal-oxide-semiconductor field-effect transistors.Ngenxa yokuqina kwayo okuphezulu, kuyisinqumo esihle kakhulu samandla we-elekthronikhi.

Njengamanje, kunezinhlobo ezimbili eziyinhloko zama-wafers e-SiC.Eyokuqala icwecwe elicwebezelayo, okuyi-wafer eyodwa ye-silicon carbide.Yenziwe ngamakristalu e-SiC ahlanzekile futhi ingaba yi-100mm noma i-150mm ububanzi.Isetshenziswa kumishini kagesi enamandla amakhulu.Uhlobo lwesibili i-epitaxial crystal silicon carbide wafer.Lolu hlobo lwe-wafer lwenziwa ngokungeza ungqimba olulodwa lwamakristalu e-silicon carbide phezulu.Le ndlela idinga ukulawula okunembile kokuqina kwento futhi yaziwa ngokuthi i-N-type epitaxy.

I-acsdv (1)

Uhlobo olulandelayo i-beta silicon carbide.I-Beta SiC ikhiqizwa emazingeni okushisa angaphezu kuka-1700 degrees Celsius.I-Alpha carbides yizona ezivame kakhulu futhi zinesakhiwo sekristalu esiyi-hexagonal esifana ne-wurtzite.Ifomu le-beta lifana nedayimane futhi lisetshenziswa kwezinye izinhlelo zokusebenza.Bekulokhu kuyisinqumo sokuqala semikhiqizo yamandla emoto kagesi eqediwe kancane.Abahlinzeki abambalwa beqembu lesithathu le-silicon carbide wafer bayasebenza njengamanje kule nto entsha.

I-acsdv (2)

Ama-wafer e-ZMSH SiC athandwa kakhulu ngezinto zokwakha ze-semiconductor.Kuyinto yekhwalithi ephezulu ye-semiconductor elungele izinhlelo zokusebenza eziningi.Ama-wafers e-silicon carbide e-ZMSH ayinto ewusizo kakhulu kumadivaysi kagesi ahlukahlukene.I-ZMSH ihlinzeka ngezinhlobonhlobo zamawafa e-SiC aphezulu kanye nama-substrates.Atholakala ngohlobo lwe-N kanye namafomu afakwe i-semi-insulated.

i-acsdv (3)

2---Silicon Carbide: Ibheke enkathini entsha yama-wafers

Izakhiwo zomzimba kanye nezici ze-silicon carbide

I-Silicon carbide inesakhiwo esikhethekile sekristalu, isebenzisa isakhiwo esine-hexagonal esiseduze esifana nedayimane.Lesi sakhiwo senza i-silicon carbide ibe ne-conductivity enhle kakhulu yokushisa kanye nokumelana nokushisa okuphezulu.Uma kuqhathaniswa nezinto ze-silicon zendabuko, i-silicon carbide inobubanzi begebe elikhulu lebhendi, ehlinzeka ngesikhala esiphezulu se-electron band, okuholela ekuhambeni okuphezulu kwama-electron kanye nokuvuza okuphansi kwamanje.Ngaphezu kwalokho, i-silicon carbide nayo inesivinini esiphezulu sokukhukhuleka kwe-electron kanye ne-resistivity ephansi yezinto ngokwazo, enikeza ukusebenza okungcono kwezicelo zamandla aphezulu.

I-acsdv (4)

Amacala okufaka isicelo kanye namathemba we-silicon carbide wafers

Izinhlelo zokusebenza ze-Power electronics

I-Silicon carbide wafer inethuba elibanzi lesicelo emkhakheni we-electronics power.Ngenxa yokuhamba kwawo okuphezulu kwama-electron kanye nokuhamba kahle kwe-thermal, ama-wafers e-SIC angasetshenziswa ukwenza amadivaysi okushintsha amandla amakhulu, njengamamojula wamandla wezimoto zikagesi kanye nama-solar inverters.Ukuzinza okuphezulu kwezinga lokushisa kwe-silicon carbide wafers kwenza lawa madivaysi asebenze ezindaweni zokushisa okuphezulu, anikeze ukusebenza kahle okukhulu nokuthembeka.

Izinhlelo zokusebenza ze-Optoelectronic

Emkhakheni wamadivayisi we-optoelectronic, ama-wafers e-silicon carbide akhombisa izinzuzo zawo ezihlukile.Izinto ze-Silicon carbide zinezici zegebe elibanzi, eliyenza ikwazi ukuzuza amandla aphezulu e-photonon nokulahlekelwa ukukhanya okuphansi kumadivayisi we-optoelectronic.Ama-wafers e-silicon carbide angasetshenziswa ukulungisa amadivaysi okuxhumana anesivinini esikhulu, ama-photodetectors nama-lasers.I-thermal conductivity yayo enhle kakhulu kanye nokuminyana kwe-crystal ephansi kuyenza ilungele ukulungiswa kwemishini ye-optoelectronic ephezulu.

I-Outlook

Ngokukhula kwesidingo samadivaysi e-elekthronikhi asebenza kahle kakhulu, amawafa e-silicon carbide anekusasa elithembisayo njengempahla enezakhiwo ezinhle kakhulu namandla okusebenza abanzi.Ngokuthuthuka okuqhubekayo kobuchwepheshe bokulungiselela kanye nokwehliswa kwezindleko, ukusetshenziswa kwezentengiselwano kwama-silicon carbide wafers kuzothuthukiswa.Kulindeleke ukuthi eminyakeni embalwa ezayo, ama-wafers e-silicon carbide azongena kancane kancane emakethe futhi abe yisinqumo esijwayelekile samandla aphezulu, imvamisa ephezulu kanye nezicelo zokushisa okuphezulu.

i-acsdv (5)
i-acsdv (6)

3---Ukuhlaziywa okujulile kwemakethe ye-SiC wafer kanye nezitayela zobuchwepheshe

Ukuhlaziywa okujulile kwabashayeli bemakethe ye-silicon carbide (SiC).

Ukukhula kwemakethe ye-silicon carbide (SiC) kuthonywa izici ezimbalwa ezibalulekile, futhi ukuhlaziya okujulile komthelela walezi zici emakethe kubalulekile.Nazi ezinye zezindlela eziyinhloko zemakethe:

Ukonga amandla nokuvikelwa kwemvelo: Ukusebenza okuphezulu nezici zokusetshenziswa kwamandla okuphansi kwezinto ze-silicon carbide ziyenza idume emkhakheni wokonga amandla nokuvikelwa kwemvelo.Isidingo sezimoto zikagesi, ama-solar inverters namanye amadivaysi okuguqula amandla kuqhuba ukukhula kwemakethe kwama-silicon carbide wafers njengoba kusiza ukunciphisa ukumosheka kwamandla.

Izinhlelo zokusebenza ze-Power Electronics: I-silicon carbide ihamba phambili ezinhlelweni zikagesi zikagesi futhi ingasetshenziswa kuma-electronics wamandla ngaphansi kwengcindezi ephezulu kanye nezimo zokushisa eziphezulu.Ngokuthandwa kwamandla avuselelekayo kanye nokugqugquzelwa kokushintshwa kwamandla kagesi, isidingo sama-silicon carbide wafers emakethe ye-electronics power siyaqhubeka nokukhula.

i-acsdv (7)

I-SiC wafers yesikhathi esizayo yokuthuthukiswa kobuchwepheshe bokukhiqiza ukuhlaziya okuningiliziwe

Ukukhiqizwa ngobuningi nokwehliswa kwezindleko: Ukwenziwa kwe-future SiC wafer kuzogxila kakhulu ekukhiqizweni ngobuningi nasekunciphiseni izindleko.Lokhu kubandakanya amasu okukhula athuthukisiwe afana ne-chemical vapor deposition (CVD) kanye ne-physical vapor deposition (PVD) ukuze kwandiswe ukukhiqiza nokunciphisa izindleko zokukhiqiza.Ukwengeza, ukwamukelwa kwezinqubo zokukhiqiza ezihlakaniphile nezizenzekelayo kulindeleke ukuthi kuthuthukiswe ukusebenza kahle.

Usayizi omusha wamawafa nesakhiwo: Usayizi nesakhiwo samawafa e-SiC kungase kushintshe esikhathini esizayo ukuze kuhlangatshezwane nezidingo zezinhlelo zokusebenza ezahlukene.Lokhu kungase kuhlanganise amawafa amakhulu amakhulu, izakhiwo ezihlukene, noma amawafa amaningi ukuze anikeze ukuguquguquka okwengeziwe komklamo kanye nezinketho zokusebenza.

i-acsdv (8)
acsdv (9)

Ukusebenza Kahle Kwezamandla Nokukhiqiza Okuluhlaza: Ukukhiqizwa kwamawafa e-SiC esikhathini esizayo kuzogcizelela kakhulu ukusebenza kahle kwamandla kanye nokukhiqizwa okuluhlaza.Izimboni ezinikezwa amandla avuselelekayo, izinto eziluhlaza, ukugaywa kabusha kwemfucuza kanye nezinqubo zokukhiqiza ikhabhoni ephansi zizoba izitayela zokukhiqiza.


Isikhathi sokuthumela: Jan-19-2024