Refractory Cov Khoom Siv Sic hmoov dub Silicon Carbide

Thaum Silicon Carbide qhov zoo yog tseeb, nws txoj kev tsim khoom lag luam tseem ua rau muaj kev cov nyom. Sic muaju yog zus ntawm qhov kub siab tshaj 2, {}}}} degree siv cov kev siv vapor (PVT), qeeb thiab muaj zog thiab lub zog-intensive txoj kev. Qhov tsis xws luag xws li micropipes thiab dislocations feem ntau ua tau nyob rau thaum kev loj hlob, txo wafer lo teb thiab nce nqi. Kev txiav thiab polishing sil Wafers kuj xav tau cov khoom siv tshwj xeeb vim yog cov khoom siv tawv, thib ob tsuas yog pob zeb diamond. Cov kaus mom no tau tsawg tsawg sic saws rau cov ntawv thov tam sim no, tab sis nce qib hauv kev rov qab zoo hauv kev loj hlob yooj yim thiab muaj kev txo qis.

Kev lag luam tab tom teb nrog kev hloov tshiab. Cov tuam txhab zoo li Wolfspeed thiab stmicroed thiab stmicroedrrivesics yog nqis peev hauv loj-diam wafers (piv txwv, 200mm) los txo tus nqi los ntawm kev lag luam ntawm cov nplai. Tshiab doping txheej txheem txhim kho cov khoom hluav taws xob, thaum lub sij hawm ai-tsav cov tshuab tswj cov khoom tsis raug thaum ntxov hauv kev tsim khoom. Tsoomfwv kuj tau nqis hauv; EU's "Chips Act" suav nrog kev pab rau cov kev tshawb fawb sic kom txo tau kev cia siab ntawm Asian muab cov saw hlau silicon. Raws li ntau lawm nplai, tshuaj ntsuam xyuas kwv yees 30% kev loj hlob ntawm ib xyoos hauv lub siter, tsav los ntawm kev thov los ntawm Evs thiab 5G tes hauj lwm.

Cov tshuab hluav taws xob manganese yog ib qho hlau ua ntej los ntawm manganese ore kua qaub ntawm manganese salts thiab pub nws rau hauv cov elecolytic. Nws zoo li hlau, yog nyob rau hauv cov plaub ya ri tsis xwm yeem, yog qhov nyuaj thiab nkig, muaj ib sab ci thiab tawv nqaij dawb rau xim av. Nws yog nyiaj-grey tom qab tau ua tiav rau hauv cov hmoov.

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