Lub nkoj Quartz yog dab tsi?
A nkoj quartzyog ib lub thawv thauj khoom ua los ntawm cov khoom siv fused silica uas muaj purity siab, feem ntau muaj ntau qhov tsim. Nws yog siv los tuav cov silicon wafers, semiconductor substrates, lossis lwm yam khoom siv thaum lub sijhawm kub siab. Hauv kev tsim khoom photovoltaic thiab semiconductor, cov nkoj quartz yog cov cuab yeej tseem ceeb rau cov txheej txheem tseem ceeb xws li diffusion, chemical vapor deposition (CVD), thiab annealing, cuam tshuam ncaj qha rau kev ua haujlwm zoo thiab cov khoom tsim tawm.
Cov Haujlwm Tseem Ceeb:
Cov khoom siv photovoltaicSiv rau hauv phosphorus diffusion (los tsim PN junctions) thiab passivation txheej deposition rau silicon wafers hauv high-temperature furnaces.
Cov khoom siv semiconductor: Nqa cov wafers thaum lub sijhawm oxidation, etching, thiab thin-film deposition hauv chip fabrication.
Lub Nkoj Quartz Tsim thiab Tsim Khoom Li Cas?
Tus qauv tsim ntawmquartz wafer nkojyuav tsum ua tau raws li cov qauv hauv qab no:
-Kev Ntshiab Siab Tshaj Plaws:
Cov khoom siv SiO2 nyoos yuav tsum tshaj 99.99% kev huv kom tsis txhob muaj kuab paug.
-Kev Tiv Thaiv Kub Siab:
Tiv taus qhov kub thiab txias ntev tshaj 1200 ℃ yam tsis muaj kev puas tsuaj ntawm cov qauv.
-Kev nthuav dav thermal qis:
Cov coefficient ntawm thermal expansion (CTE) yuav tsum tau txo qis (≈5.5 10-6 / ℃) kom tiv thaiv kev warping lossis tawg.
-Kev Tsim Qhov Chaw Tseeb:
Kev kam rau siab ntawm qhov chaw tswj tau hauv ± 0.1 hli kom ntseeg tau tias muaj cua sov sib xws.
Lub nkoj quartz raug tsim li cas?
Kev Ntxuav Khoom Siv Raw:
Cov xuab zeb quartz ntuj raug yaj hauv lub cub hluav taws xob arc ntawm 2000 ° C kom tshem tawm cov khoom tsis huv xws li Fe, Al, thiab Na.
Cov Txuj Ci Tsim Khoom:
CNC Machining: Cov cuab yeej siv computer los txiav cov qhov nrog qhov raug ntawm sub-millimeter.
Kev Txhaj Tshuaj Pwm: Rau cov qauv geometries nyuaj, fused silica raug nchuav rau hauv graphite pwm thiab sintered.
Kev Zoo Tag Nrho Ntawm Qhov Chaw:
Kev txhuam cov cuab yeej pob zeb diamond ua tiav qhov roughness ntawm qhov chaw (Ra) <0.5 μm, txo qhov kev sib txuas ntawm cov khoom me me.
Kev ntxuav kua qaub (piv txwv li, HCl) tshem tawm cov khoom seem uas seem.
Kev Ntsuas Zoo:
Kev Ntsuas Kev Poob Siab Thaum Tshav Kub: Ua kom sai sai ntawm 25 ℃ thiab 1200 ℃ los xyuas qhov tsis kam ntawm qhov tawg.
Kev Tshuaj Xyuas Kev Huv: Kev ntsuas qhov muag pom kev (Glow discharge mass spectrometry - GDMS) nrhiav pom cov khoom tsis huv me me.
Vim li cas cov nkoj quartz thiaj tsis tuaj yeem hloov pauv tau hauv cov lag luam no?
Kev Tsis Muaj Tshuaj Lom Zem: Tiv taus cov tshuaj tiv thaiv nrog cov kua qaub, alkalis, chlorine, thiab cov pa roj ua haujlwm ntawm qhov kub siab.
Kev Ruaj Ntseg ThermalZoo dua li cov hlau lossis ceramics hauv kev hloov pauv sai sai vim yog CTE qis heev.
Kev Pom Kev Pom Kev Zoo: Tso cai rau UV-IR lub teeb kis tau rau cov txheej txheem CVD uas tau txais kev pab los ntawm daim duab.
Kev sib piv:
Silicon Carbide (SiC) Nkoj: Tus nqi siab dua thiab reactivity nrog oxygen (tsim CO2).
Lub Nkoj GraphiteKev pheej hmoo ntawm cov pa roj carbon uas cuam tshuam rau wafer resistivity.
Cov nkoj quartz ua haujlwm li cas hauv cov kab ntau lawm photovoltaic?
Kev Sib Kis ntawm Phosphorus:
Txheej Txheem: Silicon wafers raug thauj mus rau hauv cov nkoj quartz thiab raug rau POCl3 roj ntawm 850-950 ℃ los tsim PN junctions.
Quartz muaj kev tiv thaiv corrosion zoo dua tiv thaiv cov chaw POCl3 uas muaj zog heev.
Kev Siv PERC Cell Passivation:
Txheej Txheem: Tuav cov wafers thaum lub sijhawm Al2O3 deposition rau qhov rov qab-nto passivation, txhawb kev hloov pauv zoo.
Cov Txheej Txheem Tseem Ceeb: Kev tsim qhov chaw ua kom cov zaj duab xis tuab sib npaug ≤3%.
Cov nkoj quartz ua li cas thiaj ua kom muaj kev ua tiav hauv kev ua wafer?
Cov Txheej Txheem Oxidation:
Txheej Txheem: Cov wafers raug thauj mus rau hauv lub nkoj quartz rau kev oxidation qhuav / ntub dej ntawm 1100 ℃ kom loj hlob SiO2 txheej.
Tsim Qauv: Phab ntsa qhov sib dhos ntawm 5-10 ° kom tiv thaiv kev plam ntawm wafer.
Cov Txheej Txheem CVD:
Txheej Txheem: Ua kom cov plasma faib sib npaug thaum lub sijhawm Si3N4 lossis polysilicon deposition.
Kev Tsim Kho Tshiab: Cov qauv tsim siab heev suav nrog cov roj ntws los ua kom cov yeeb yaj kiab zoo dua.
Cov kev coj ua dab tsi ua rau lub quartz boa lub neej ntev dua thaum txo qis lub sijhawm tsis ua haujlwm?
Kev Ntxuav Tsheb Kauj Vab:
Txhua Hnub: Dej Deionized + CO2 daus jet ntxuav tshem tawm cov khoom xoob.
Txhua lub lim tiam: Kev muab tso rau hauv 5% citric acid ntawm 80 ℃ yaj cov hlau oxides.
Daim Ntawv Teev Xyuas Kev Tshuaj Xyuas:
Kev puas tsuaj: Cov pob dawb ntawm quartz qhia txog kev siv lead ua; hloov yog tias qhov kev npog ntau tshaj 5%.
Cov kab nrib pleb me me: Siv kev sim xim nkag mus rau hauv av los nrhiav cov qhov tsis zoo hauv qab.
Cov kev tshawb pom twg yuav txhais dua tshiab txog kev siv tshuab nkoj quartz?
Cov Nkoj Uas Siv IoT:
Cov cuab yeej ntsuas Bragg grating (FBG) uas muaj fiber ntau hauv lub cev saib xyuas qhov kub thiab txias tiag tiag (qhov tseeb ±1°C).
Cov Txheej Txheem Siab Tshaj Plaws:
Yttria-stabilized zirconia (YSZ) coatings txo cov silicon carbide buildup los ntawm 70% hauv epitaxial reactors.
Kev Tsim Khoom Ntxiv:
Cov nkoj quartz luam tawm 3D nrog cov qauv lattice txiav qhov hnyav los ntawm 40% thaum tswj hwm lub zog.
Xaus lus
Txij li kev ua kom muaj cov chaw ua liaj ua teb hnub ci terawatt mus rau kev txhawb nqa lub zog ntawm AI los ntawm cov khoom siv semiconductor siab heev,nkoj quartzyog cov khoom siv niaj hnub uas tsis muaj zog. Thaum cov lag luam thawb cov ciam teb ntawm kev ua kom me me thiab kev ua haujlwm tau zoo, kev tsim kho tshiab hauv kev tsim nkoj quartz thiab kev tshawb fawb txog cov khoom siv yuav tseem yog qhov tseem ceeb - ua pov thawj tias txawm tias nyob rau hauv lub hnub nyoog ntawm AI thiab quantum computing, qee cov khoom siv "qub" tseem tuav cov yuam sij rau yav tom ntej.
Lub sijhawm tshaj tawm: Lub Peb Hlis-20-2025