Dab tsi yog sic txheej? -VET ENERGY

Silicon Carbideyog ib qho nyuaj compound uas muaj silicon thiab carbon, thiab muaj nyob rau hauv cov xwm li cov ntxhia tsis tshua muaj moissanite. Silicon carbide hais tuaj yeem sib koom ua ke los ntawm sintering los tsim cov ceramics nyuaj, uas yog siv dav hauv cov ntawv thov kom muaj zog, tshwj xeeb tshaj yog nyob rau hauv semiconductor procession.

Lub cev qauv ntawm SiC

SiC Txheej yog dab tsi?

SiC txheej yog tuab, hnav-resistant silicon carbide txheej nrog siab corrosion thiab kub tsis kam thiab zoo thermal conductivity. Qhov no high-purity SiC txheej yog feem ntau siv nyob rau hauv lub semiconductor thiab electronics industries los tiv thaiv wafer nqa, hauv paus thiab cua sov ntsiab los ntawm corrosive thiab reactive ib puag ncig. SiC txheej kuj tsim nyog rau lub tshuab nqus tsev vacuum thiab cov qauv cua sov hauv lub tshuab nqus tsev siab, reactive thiab oxygen ib puag ncig.

High purity SiC txheej nto

SiC txheej txheem yog dab tsi?

Ib txheej nyias ntawm silicon carbide yog tso rau ntawm qhov chaw ntawm lub substrate sivCVD (Chemical Vapor Deposition). Kev tso nyiaj feem ntau yog ua tiav ntawm qhov kub ntawm 1200-1300 ° C thiab thermal expansion tus cwj pwm ntawm cov khoom siv substrate yuav tsum tau sib xws nrog SiC txheej kom txo qis thermal stress.

CVD SIC FILM CRYSTAL StrucTURE

CVD SIC txheej FILM CRYSTAL StrucTURE

Lub cev lub cev ntawm SiC txheej yog qhov tseem ceeb hauv nws qhov kub thiab txias, hardness, corrosion kuj thiab thermal conductivity.

Cov yam ntxwv ntawm lub cev feem ntau yog raws li hauv qab no:

Hardness: SiC txheej feem ntau muaj Vickers Hardness nyob rau hauv thaj tsam ntawm 2000-2500 HV, uas ua rau lawv tsis tshua muaj siab hnav thiab cuam tshuam rau kev siv hauv kev lag luam.

Qhov ntom: SiC txheej feem ntau muaj qhov ceev ntawm 3.1-3.2 g / cm³. Qhov siab ceev pab txhawb rau cov neeg kho tshuab lub zog thiab durability ntawm txheej.

Thermal conductivity: SiC coatings muaj cov thermal conductivity siab, feem ntau nyob rau hauv thaj tsam ntawm 120-200 W / mK (ntawm 20 ° C). Qhov no muab nws zoo thermal conductivity nyob rau hauv qhov kub thiab txias ib puag ncig thiab ua rau nws tshwj xeeb tshaj yog haum rau cov khoom siv kho cua sov hauv kev lag luam semiconductor.

Melting point: silicon carbide muaj qhov melting point ntawm kwv yees li 2730 ° C thiab muaj thermal stability zoo heev ntawm qhov kub thiab txias.

Coefficient ntawm Thermal Expansion: SiC coatings muaj ib tug tsawg linear coefficient ntawm thermal expansion (CTE), feem ntau nyob rau hauv qhov ntau ntawm 4.0-4.5 µm / mK (nyob rau hauv lub 25-1000 ℃). Qhov no txhais tau hais tias nws qhov seem stability yog qhov zoo tshaj qhov sib txawv ntawm qhov kub thiab txias.

Corrosion kuj: SiC coatings yog heev resistant rau corrosion nyob rau hauv muaj zog acid, alkali thiab oxidizing ib puag ncig, tshwj xeeb tshaj yog thaum siv cov acids muaj zog (xws li HF los yog HCl), lawv corrosion kuj deb tshaj li cov pa hlau cov ntaub ntawv.

SiC txheej tuaj yeem siv rau cov ntaub ntawv hauv qab no:

High purity isostatic graphite (tsawg CTE)
Tungsten
Molybdenum
Silicon Carbide
Silicon Nitride
Carbon-Carbon Composites (CFC)

SiC coated cov khoom siv feem ntau siv hauv cov hauv qab no:

LED nti ntau lawm
Polysilicon ntau lawm
Semiconductorcrystal kev loj hlob
Silicon thiabSiC epitaxy
Wafer tshav kub kho thiab etching

Vim li cas thiaj xaiv VET Energy?

VET Energy yog cov chaw tsim khoom lag luam, tsim kho tshiab thiab tus thawj coj ntawm SiC txheej khoom hauv Suav teb, cov khoom tseem ceeb ntawm SiC txheej muaj xws liwafer cab kuj nrog SiC txheej, SiC coatedepitaxial tiv thaiv, SiC coated graphite nplhaib, Ib nrab hli ntu nrog SiC txheej, SiC coated carbon-carbon composite, SiC coated wafer nkoj, SiC coated rhaub, thiab lwm yam. VET Energy tau cog lus los muab kev lag luam semiconductor nrog cov thev naus laus zis zoo tshaj plaws thiab cov khoom lag luam daws teeb meem, thiab txhawb cov kev pabcuam customization. Peb ua siab dawb tos ntsoov yuav yog koj tus khub mus sij hawm ntev hauv Suav teb.