I-Graphite Crucible Ehlanzekile Kakhulu

I-VET Energy igxile ekukhiqizeni ikhwalithi ephezuluIsitsha Sokubhoboza Esingenasici Se-Graphite Esihlanzekile Kakhulus yakhelwe ukusetshenziswa kwezinto ezidinga kakhulu ze-semiconductor kanye nezinto ezithuthukisiwe. Yakhiwe nge-graphite e-isostatic ecolekile kakhulu futhi ihlanzwe ngezinqubo zokuhlanza i-halogen ezishisa kakhulu, izitsha zethu ze-graphite zinikeza ukuzinza kokushisa okumangalisayo, amazinga aphansi okungcola, kanye nokuvumelana okuvelele ngaphansi kwezimo zokusebenza ezimbi kakhulu.

Isetshenziswa kabanzi ekukhuleni kwekristalu ye-SiC, ekukhiqizweni kwekristalu ye-GaN, ekukhiqizweni kwezinto ze-epitaxial, kanye nasekuthungeni okuthuthukisiwe kwe-ceramic, i-High-PurityI-Isostatic Graphite Crucibles idlala indima ebalulekile ekuqinisekiseni ikhwalithi yekristalu, ukuzinza kwenqubo, kanye nokusebenza kahle kokukhiqiza kuyo yonke imboni yesimanje ye-semiconductor.

Iyini i-High-Purity Isostatic Graphite Crucible?

I-High-Purity Isostatic Graphite Crucible iyisitsha esenziwe ngokunemba esenziwe ngezinto ze-isotropic graphite ezakhiwe ngenqubo yokucindezela i-isostatic. Uma kuqhathaniswa nemikhiqizo ye-graphite ebunjiwe evamile, i-isostatic graphite inikeza:

● Isakhiwo esincane esifanayo kuzo zonke izinkomba

● Ubuningi obuphezulu kanye namandla omshini

● Ukushisa okuphezulu kakhulu

● Ukumelana okuhle kakhulu nokushisa

● Ukwehla kwezimbobo

● Okuqukethwe kokungcola okuphansi kakhulu

Ngemva kokuhlanzwa, okuqukethwe komlotha ngokuvamile kungalawulwa ngaphansi kuka-5 ppm, kanti ezinye izinto zezinga le-semiconductor zifinyelela amazinga okungcola ngaphansi kuka-3 ppm.

Lezi zici zenza ama-High-Purity Isostatic Graphite Crucibles afaneleke kakhulu ezinqubweni zokushisa okuphezulu ezidlula u-2,000°C, lapho ukulawulwa kokungcola kanye nokufana kokushisa kubalulekile khona.

Izindima Ekukhiqizweni Kwe-Semiconductor

Ekukhuleni kwekristalu yeSilicon Carbide (SiC) kusetshenziswa inqubo ye-Physical Vapor Transport (PVT), izitsha ze-graphite zisebenza njengesitsha sokuthwala izinto ezivela emthonjeni kanye nengxenye ebalulekile yesistimu yensimu yokushisa. Njengoba isebenza emazingeni okushisa avame ukwedlula u-2,200°C, i-crucible kumele igcine ukuzinza kobukhulu ngenkathi isekela amazinga okushisa aqondile adingekayo ekuthuthweni komhwamuko kanye nokwakheka kwekristalu. Ubumsulwa kanye nesakhiwo se-isotropic se-graphite kuthinta ngqo ukufakwa kokungcola, ukusatshalaliswa kokushisa, izinga lokukhula kwekristalu, kanye nokukhiqizwa kwamaphutha.

Indima ye-High-Purity Isostatic Graphite Crucibles idlulela ngale kokukhiqizwa kwe-SiC iye kubuchwepheshe obuthuthukisiwe bokukhula kwekristalu ye-Gallium Nitride (GaN). Kungakhathaliseki ukuthi isetshenziswa ku-HVPE, ukukhula kwe-flux, noma izindlela ezintsha zokukhiqiza ikristalu enkulu, i-graphite crucibles inikeza indawo ezinzile yokushisa ephezulu esekela ukuthuthwa kwezinto kanye nokwakheka kwekristalu ngenkathi inciphisa izingozi zokungcola.

Ekukhiqizweni kwezinto ze-epitaxial ze-semiconductor, okuhlanganisa i-SiC epitaxy, ukukhula kwekristalu ye-AlN, kanye nokucutshungulwa kwe-semiconductor okuhlanganisiwe okuthuthukisiwe, ama-graphite crucibles anegalelo ekufaneni kokushisa kanye nokuphindaphindeka kwenqubo. Ukuqhuba kwawo ukushisa okuhle kakhulu kanye nokumelana nokushaqeka kokushisa kwenza ukusebenza okuzinzile ngaphansi kwezimo zenqubo ezimbi kakhulu, kusekela ukulawulwa okunembile kokuhwamuka, i-sublimation, kanye nezindlela zokubeka.

Ama-High-Purity Isostatic Graphite Crucibles nawo adlala indima ebalulekile ekukhiqizweni kwezinto zobumba ezithuthukisiwe kanye nama-semiconductor powders esizukulwane sesithathu. Ngesikhathi sokushiswa kwe-silicon carbide, i-aluminium nitride, i-boron nitride, nezinye izinto zobumba ezisebenza kahle, i-crucible ihlinzeka ngendawo eqinile ngamakhemikhali futhi efanayo ngokushisa ekhuthaza ukuqina ngenkathi inciphisa ukungcola. Ukuthuthukiswa okubangelwa ukuhlanzeka kwezinto, ukuqhuba ukushisa, kanye nokusebenza kwemishini kubalulekile ekusetshenzisweni kusukela ezingxenyeni zemishini ye-semiconductor kuya ekupakishweni kwe-elekthronikhi okunamandla aphezulu.

Izitayela Zemboni kanye Nentuthuko Yesikhathi Esizayo

Njengoba ama-semiconductors asebenzisa i-wide-band gap eqhubeka nokuguqula imboni ye-elekthronikhi yamandla, isidingo se-graphite crucibles esithuthukisiwe sikhula ngokushesha.

Izidingo Zokuhlanzeka Okuphezulu Kakhulu

Izinhlelo zokusebenza ze-semiconductor zesikhathi esizayo zidinga amazinga okungcola angaphansi kuka-5 ppm futhi, kwezinye izimo, asondele ku-1 ppm ukusekela osayizi abakhulu bekristalu kanye nobuningi obuphansi besici.

Ubuchwepheshe Bokumboza

Ukwembozwa okuthuthukisiwe kobuso kuya ngokuya kusetshenziswa ezitsheni ze-graphite, okuhlanganisa:

● Ukugqoka kwe-Silicon Carbide (SiC)

● Ukugqoka kwe-Tantalum Carbide (TaC)

● Ukugqoka kwe-Pyrolytic Carbon (PyC)

Lezi zingubo zokugqoka ziyathuthukisa:

● Ukumelana nokugqwala

● Ukuqina kokushisa

● Ukusebenza kwempilo yonke

● Ukuhlanzeka kwenqubo

● Imiklamo Emikhulu Yezikebhe Ezivuthayo

Ukuthengiswa kwe:

● Ama-wafer e-SiC angu-8-intshi

● Izisekelo ze-GaN ezinkulu

● Izinto ze-semiconductor zamandla ezithuthukisiwe

iqhuba ukuthuthukiswa kwezigxobo ezinkulu ze-graphite ezizinzile nezinobukhulu obuthile ezikwazi ukugcina ukulawula ukushisa okunembile phezu kwemijikelezo yokukhiqiza ende.