CVD (Chemical Vapor Deposition) yog ib txoj kev siv ntau rau kev npaj cov txheej silicon carbide.CVD silicon carbide txheejmuaj ntau yam ntxwv kev ua tau zoo tshwj xeeb. Tsab xov xwm no yuav qhia txog txoj kev npaj ntawm CVD silicon carbide txheej thiab nws cov yam ntxwv kev ua tau zoo.
1. Txoj kev npaj ntawmCVD silicon carbide txheej
Txoj kev CVD hloov cov pa roj ua cov txheej txheem khov kho ua cov txheej txheem silicon carbide khov kho nyob rau hauv qhov kub siab. Raws li cov pa roj sib txawv, nws tuaj yeem muab faib ua cov roj theem CVD thiab cov kua theem CVD.
1. Cov pa dej CVD
Cov txheej txheem ua pa CVD siv cov khoom siv roj ua ntej, feem ntau yog cov khoom sib xyaw organosilicon, kom ua tiav kev loj hlob ntawm cov yeeb yaj kiab silicon carbide. Cov khoom sib xyaw organosilicon feem ntau siv suav nrog methylsilane, dimethylsilane, monosilane, thiab lwm yam, uas tsim cov yeeb yaj kiab silicon carbide ntawm cov hlau substrates los ntawm kev thauj cov khoom siv roj ua ntej mus rau hauv cov chav ua haujlwm kub siab. Cov chaw kub siab hauv chav ua haujlwm feem ntau yog tsim los ntawm kev cua sov induction lossis cua sov resistive.
2. Cov kua theem CVD
Cov kua dej CVD siv cov kua ua ntej, feem ntau yog cov organic solvent uas muaj silicon thiab silanol compound, uas tau cua sov thiab vaporized hauv chav tshuaj tiv thaiv, thiab tom qab ntawd ib zaj duab xis silicon carbide yog tsim rau ntawm lub substrate los ntawm kev tshuaj tiv thaiv tshuaj.
2. Cov yam ntxwv ntawm kev ua tau zooCVD silicon carbide txheej
1. Kev ua haujlwm kub zoo heev
CVD silicon carbide txheejmuab kev ruaj khov zoo heev thaum kub thiab tiv taus oxidation. Nws muaj peev xwm ua haujlwm hauv qhov chaw kub thiab tuaj yeem tiv taus cov xwm txheej hnyav ntawm qhov kub siab.
2. Cov khoom siv kho tshuab zoo
CVD silicon carbide txheejmuaj qhov tawv heev thiab tiv taus kev hnav zoo. Nws tiv thaiv cov hlau substrates ntawm kev hnav thiab xeb, ua rau cov khoom siv ntev dua.
3. Kev ruaj khov tshuaj zoo heev
CVD silicon carbide txheejNws tiv taus cov tshuaj lom neeg xws li cov kua qaub, alkalis thiab ntsev heev. Nws tiv taus kev tawm tsam tshuaj lom neeg thiab kev xeb ntawm lub substrate.
4. Kev sib txhuam qis
CVD silicon carbide txheejNws muaj qhov sib txhuam tsawg thiab cov yam ntxwv zoo uas ua rau nws tus kheej lubricating. Nws txo qhov kev sib txhuam thiab kev hnav thiab txhim kho kev siv cov khoom siv tau zoo.
5. Kev ua tau zoo ntawm cov cua sov
Cov txheej txheem CVD silicon carbide muaj cov khoom ua kom sov zoo. Nws tuaj yeem ua kom sov sai thiab txhim kho kev ua haujlwm ntawm cov hlau.
6. Cov khoom siv hluav taws xob zoo heev
Cov txheej txheem CVD silicon carbide muaj cov khoom siv rwb thaiv hluav taws xob zoo thiab tuaj yeem tiv thaiv kev xau tam sim no. Nws yog dav siv rau hauv kev tiv thaiv rwb thaiv tsev ntawm cov khoom siv hluav taws xob.
7. Kho tau qhov tuab thiab muaj pes tsawg leeg
Los ntawm kev tswj cov xwm txheej thaum lub sijhawm CVD thiab qhov concentration ntawm cov precursor, qhov tuab thiab cov khoom sib xyaw ntawm cov zaj duab xis silicon carbide tuaj yeem hloov kho. Qhov no muab ntau txoj kev xaiv thiab kev ywj pheej rau ntau yam kev siv.
Hauv ntej, CVD silicon carbide txheej muaj kev ua haujlwm kub zoo heev, cov khoom siv kho tshuab zoo heev, kev ruaj khov tshuaj lom neeg zoo, kev sib txhuam qis, kev ua haujlwm thermal zoo thiab kev rwb thaiv tsev hluav taws xob. Cov yam ntxwv no ua rau CVD silicon carbide txheej siv dav hauv ntau qhov chaw, suav nrog kev siv hluav taws xob, optics, aerospace, kev lag luam tshuaj lom neeg, thiab lwm yam.
Lub sijhawm tshaj tawm: Lub Peb Hlis-20-2024