Kev Taw Qhia: Vim Li Cas Graphite Porous Tseem Ceeb Hauv Kev Tsim Khoom Semiconductor
Thaum kev tsim khoom siv semiconductor txav mus rau cov nodes siab heev thiab cov semiconductors sib xyaw (xws li SiC), qhov yuav tsum tau ua cov khoom siv tau dhau los ua qhov nruj dua. Kev ruaj khov ntawm qhov kub siab, kev ntshiab siab heev, thiab kev tswj cov roj ntws meej tam sim no yog qhov tseem ceeb heev.
Raws li Lub Koom Haum Zog Thoob Ntiaj Teb, cov ntaub ntawv siab heev ua lub luag haujlwm tseem ceeb hauv kev ua kom muaj zog tiam tom ntej thiab cov thev naus laus zis semiconductor, tshwj xeeb tshaj yog hauv cov khoom siv hluav taws xob ua haujlwm tau zoo.
Ntawm cov ntaub ntawv no, cov graphite porous tau tshwm sim los ua ib qho kev daws teeb meem tseem ceeb rau kev ua tiav cov txheej txheem ruaj khov, kev sib npaug, thiab kev txhim kho cov txiaj ntsig.
Graphite Porous yog dab tsi?
Cov graphite uas muaj qhov porous yog cov khoom siv carbon uas tsim los uas muaj lub network tswj hwm ntawm cov qhov pore sib txuas, ua rau cov roj lossis cov kua dej permeability thaum tswj cov khoom ntawm graphite.
Tsis zoo li cov graphite ntom ntom, cov graphite porous muaj cov hauv qab no:
● Kev nkag tau: feem ntau yog 10⁻¹² txog 10⁻¹⁴ m² (nyob ntawm seb muaj qauv li cas)
● Qhov porosity: feem ntau yog 10%–30% (ntau yam tsim los)
Cov yam ntxwv no ua rau nws zoo tagnrho rau kev sib kis roj thiab kev tswj cua sov hauv cov txheej txheem semiconductor.
Microstructure ntawm Porous Graphite
Cov Qauv Carbon
Cov graphite uas muaj qhov nqus tau muaj cov txheej carbon sp²-bonded, muab cov hauv qab no:
● Kev ua kom sov tau zoo: 80–150 W/m·K (ntau yam li qub)
● Kev ruaj khov ntawm thermal: txog li 3000°C hauv huab cua inert
Cov qauv ntawm qhov hws
Nws qhov kev ua tau zoo nyob ntawm cov yam ntxwv ntawm cov qhov dej uas tau tsim:
● Qhov loj ntawm qhov hws: feem ntau yog 1–100 μm
● Qhov qhib porosity: tseem ceeb rau kev thauj roj
● Thaj chaw nto: ua rau muaj kev sib cuam tshuam ntau ntxiv
Microstructure ncaj qha txiav txim siab qhov sib npaug ntawm cov roj ntws thiab cov txheej txheem ua haujlwm tau zoo.
Cov txiaj ntsig tseem ceeb ntawm Porous Graphite
1. Kev Pom Zoo Zoo ntawm Cov Roj
Cov tes hauj lwm pore tswj tau ua rau muaj kev faib roj sib npaug, txhim kho kev tso cov roj hauv CVD thiab EPI cov txheej txheem.
2. Kev Kub Siab Tiv Thaiv
Cov graphite uas muaj qhov porous tswj tau qhov ruaj khov ntawm:
● >2000°C nyob rau hauv qhov chaw nqus tsev/inert
● Kev hloov pauv thermal tsawg kawg nkaus
3. Kev Ruaj Ntseg Tshuaj Zoo Tshaj Plaws
● tiv taus xeb
● Ruaj khov nyob rau hauv halogen thiab reactive roj ib puag ncig
4. Lub teeb yuag nrog kev ncaj ncees ntawm cov qauv
● Qhov Ceev: feem ntau yog 1.5–1.9 g/cm³
● Qhov sib piv ntawm lub zog thiab qhov hnyav
5. Kev Huv Si Qib Semiconductor
● Cov tshauv muaj: <50 ppm (qib purity siab)
● Tseem ceeb rau cov txheej txheem uas cuam tshuam nrog kev ua qias tuaj
6. Kev hloov kho qhov porosity
Cov neeg tsim khoom tuaj yeem kho kom haum rau:
● Qhov loj ntawm qhov hws
● Qhov Ceev
● Kev nkag tau
Qhov no ua rau muaj kev txhim kho tshwj xeeb rau cov txheej txheem, tshwj xeeb tshaj yog hauv kev tsim khoom semiconductor siab heev.
Cov Kev Siv Semiconductor ntawm Porous Graphite
Kev Faib Roj Hauv CVD & Epitaxy (EPI)
Cov graphite uas muaj qhov nqus tau zoo ua kom cov pa roj ntws zoo ib yam, ua kom cov zaj duab xis tuab thiab cov wafer tawm los zoo dua.
PVT Crystal Growth (SiC)
Siv rau hauv cov txheej txheem tswj thermal field, txhawb nqa cov xwm txheej kev loj hlob ntawm crystal ruaj khov.
Raws li IEEE cov ntawv tshaj tawm, kev sib xws ntawm thermal yog qhov tseem ceeb rau kev loj hlob zoo ntawm SiC siv lead ua.
Kev Tswj Xyuas Lub Tshuab Nqus Tsev thiab Wafer
● Kev nqus dej ruaj khov
● Kev faib tawm ntawm lub zog sib xws
Cov Cheebtsam Tswj Xyuas Kub
● Kev hloov pauv cua sov zoo
● Txo cov cua sov hloov pauv
Cov Tshuab Lim thiab Kev Sib Kis
● Kev ntxuav roj
● Cov chaw tswj kev sib kis
Graphite uas muaj qhov nqus dej vs Graphite uas ntom ntom
| Feature | Graphite uas muaj qhov nqus tau | Cov Graphite ntom ntom |
| Qhov porosity | 10–30% | <5% |
| Kev nkag tau | Siab | Tsis tseem ceeb |
| Kev Ruaj Ntseg Thermal | Zoo heev | Zoo heev |
| Kev Siv Semiconductor | Tseem ceeb heev | Txwv |
Xaus Lus: Cov graphite uas muaj qhov porous ua rau muaj kev tswj cov txheej txheem raug uas cov graphite ntom ntom tsis tuaj yeem ua tiav.
Yuav ua li cas xaiv cov Graphite uas muaj qhov porous zoo?
Cov yam tseem ceeb uas yuav tsum tau soj ntsuam:
● Qhov loj ntawm qhov (μm theem) → cuam tshuam rau kev faib roj
● Kev nkag tau (m²) → txiav txim siab qhov ua tau zoo ntawm kev ntws
● Kev huv (ppm theem) → cuam tshuam rau kev pheej hmoo ntawm kev ua qias tuaj
● Kev ua tau zoo ntawm cov cua sov (W/m·K) → cuam tshuam rau kev tswj qhov kub thiab txias
● Kev sib haum xeeb ntawm txheej (SiC, TaC)
Kev xaiv kom raug tuaj yeem txhim kho qhov txiaj ntsig, kev sib npaug, thiab kev ruaj khov ntawm cov txheej txheem.
Vim li cas ho xaiv VET Zog?
Ntawm Ningbo VET Energy, peb muab kev tsim khoom siv siab heev nrog kev txawj ntse ntawm kev siv semiconductor.
✔ Kev Tswj Xyuas Qhov Porosity Uas Muaj Kev Ntsuas Zoo: Cov qauv pore uas tau tsim tshwj xeeb rau cov txheej txheem tshwj xeeb
✔ Semiconductor-Qib Purity: Kev tswj hwm nruj ntawm cov khoom tsis huv rau cov ntawv thov siab kawg
✔ Muaj Peev Xwm Tsim Khoom Siab Tshaj Plaws: Txhawb nqa CVD, PVT, EPI, RTP ib puag ncig
✔ Kev daws teeb meem engineering tshwj xeeb: kev tsim qauv thiab kev ua kom zoo dua rau daim ntawv thov
✔ Kev Muab Khoom Thoob Ntiaj Teb Txhim Khu Kev Ntseeg Siab: Kev ua tau zoo thiab kev xa khoom zoo tas li
Nrhiav cov graphite uas muaj qhov nqus tau zoo? Tiv tauj Ningbo VET Energy kom tau txais cov kev daws teeb meem tshwj xeeb.
Cov Teeb Meem thiab Cov Qauv Kev Lag Luam
Txawm hais tias graphite porous muaj cov txiaj ntsig zoo, cov teeb meem suav nrog:
● Cov txheej txheem tsim khoom nyuaj
● Tus nqi siab dua piv rau tus qauv graphite
Txawm li cas los xij, tsav los ntawm SiC cov khoom siv fais fab thiab cov tshuab hluav taws xob rov ua dua tshiab, qhov kev thov txuas ntxiv mus ntxiv.
Raws li Lub Koom Haum Zog Thoob Ntiaj Teb, cov ntaub ntawv siab heev yuav tseem ceeb rau cov hauv paus tsim kho hluav taws xob tiam tom ntej.
Cov Lus Nug Feem Ntau
Q1: Cov graphite porous siv rau dab tsi?
Cov graphite uas muaj qhov ntxig siv tau rau hauv cov txheej txheem semiconductor xws li CVD, epitaxy, thiab kev loj hlob ntawm cov siv lead ua rau cov pa roj diffusion thiab kev tswj cua sov.
Q2: Vim li cas graphite porous thiaj tseem ceeb hauv semiconductors?
Nws ua rau muaj kev ntws roj meej, kev ruaj khov ntawm qhov kub siab, thiab kev tswj hwm kev ua qias tuaj.
Q3: Cov yam ntxwv tseem ceeb ntawm porous graphite yog dab tsi?
Cov yam ntxwv tseem ceeb suav nrog porosity (10–30%), permeability (10⁻¹²–10⁻¹⁴ m²), thermal conductivity (80–150 W/m·K), thiab purity (<50 ppm).
Lub sijhawm tshaj tawm: Plaub Hlis-24-2026