Hauv kev tsim cov khoom siv semiconductor niaj hnub thiab kev tsim cov khoom siv semiconductor tiam thib peb (xws li Silicon Carbide [SiC] thiab Gallium Nitride [GaN]), kev sib tham hauv kev lag luam feem ntau tsom mus rau cov tshuab EUV lithography siab heev, plasma etchers, lossis precursor gas purity. Txawm li cas los xij, sab hauv qhov chaw huv si, muaj zog heev, thiab kub heev ntawm chav tshuaj tiv thaiv muaj ib tug phab ej tseem ceeb uas tsis tau paub: tus Graphite susceptor.
1. Graphite Susceptor yog dab tsi?
A Cov khoom siv graphiteyog ib qho khoom siv thauj khoom ua haujlwm precision-engineered ua los ntawm cov khoom siv siab-purity iso-molded lossis extruded graphite, feem ntau muaj cov duab disk, pocketed, lossis kev caicov duab peb sab uas tsim los kom haum rau cov chav tshuaj tiv thaiv tshwj xeeb.
Hauv cov khoom siv xws li Chemical Vapor Deposition (CVD), Metal-Organic Chemical Vapor Deposition (MOCVD), thiab Rapid Thermal Processing (RTP) reactors, lub luag haujlwm tseem ceeb ntawm lub platform carrier yog tuav cov semiconductor wafers kom ruaj ntseg thaum ua haujlwm ua lub tshuab hloov pauv cua sov thawj zaug. Siv cov txheej txheem cua sov Graphite susceptor induction, cov khoom siv sai sai nqus Radio Frequency (RF) lossis microwave electromagnetic zog thiab hloov nws mus rau hauv lub zog thermal sib xws, pab txhawb kev tswj hwm thermal precision millisecond thoob plaws qhov chaw wafer.
2. Cov Khoom Siv Sib xyaw & Cov qauv me me: Vim li cas Isostatic Graphite + CVD SiC Txheej?
Cov graphite nyoos uas tsis tau pleev xim yuav tsis muaj peev xwm nyob tau hauv cov huab cua tshuaj lom neeg thiab cov kev cai huv huv ntawm kev tsim khoom semiconductor. Cov khoom siv graphite ua haujlwm siab niaj hnub no siv cov txheej txheem sib xyaw ua ke ob txheej tshwj xeeb:
(1) Cov Khoom Siv Graphite Isostatic Purity Siab
Lub hauv paus substrate yog tsim los ntawm kev siv isostatically pressed graphite. Los ntawm kev ua kom zoo dua qhov sib phim ntawm graphite micro crystalline, nws ua tiav cov khoom isotropic, porosity tsawg, thiab lub zog mechanical flexural siab, muab lub hauv paus zoo tagnrho rau kev ua cov wafer pocket geometries uas nyuaj me ntsis.
(2) CVD Silicon Carbide (SiC) Kev Tiv Thaiv Txheej
Siv Chemical Vapor Deposition, ib txheej poly-crystalline B-SiC (feem ntau yog 10 txog 100 um tuab nrog 99.999% purity) raug cog rau saum cov graphite substrate. Cov txheej no kaw tag nrho cov qhov me me ntawm graphite, tiv thaiv cov khoom me me uas poob tawm, thiab muab ib qho thaiv tsis pub nkag mus rau hauv cov pa roj corrosive xws li HCI, NH4, thiab cov tshuaj fluorinated.
3. Cov Khoom Siv Tseem Ceeb & Cov Lus Qhia Txog Khoom Siv
Raws li kev kuaj mob hauv chaw kuaj mob thiab cov qauv kev lag luam uas tau lees paub, cov khoom siv graphite uas muaj cov xim ntshiab siab qhia txog cov yam ntxwv tseem ceeb hauv qab no:
| Cov Qauv Lub Cev / Tshuaj | Tus Nqi Siv Tus Qauv | Qhov Zoo ntawm Cov Txheej Txheem thiab Kev Cuam Tshuam ntawm Kev Ua Haujlwm |
| Tag Nrho Cov Tshauv (Purity) | < 5 ppm (Ref: XR Graphite Spec Data) | Tshem tawm cov hlau ua qias tuaj, ua kom cov txheej epitaxial tsis muaj qhov tsis zoo. |
| Qhov Ceev Pom Tseeb | Cov khoom siv: 1.85 g/cm³ | SiC: 3.21 g/cm³ | Kev kub tsis tshua muaj zog rau kev nce nrawm nrawm nrog lub plhaub tsis nkag tau. |
| Lub zog flexural | ≥ 49 MPa (Cov Khoom Siv) | ~450 MPa (SiC) | Tiv taus kev ntxhov siab thermal heev thiab kev thauj khoom hnyav ntawm wafer yam tsis muaj kev warping. |
| Kub Tshaj Plaws Ua Haujlwm | > 1500°C – 1800°C | Tswj kev ruaj khov ntawm cov qauv thaum lub sijhawm kub siab SiC siv lead ua loj hlob. |
| Kev Ua Kub | ~116 W/m·K (100 kcal/cm·h·°C) | Sai sai tawg cov chaw kub hauv zos, ua tiav qhov thermal gradient tsawg kawg nkaus (ΔT). |
| Kev Tiv Thaiv Hluav Taws Xob | ~11 μΩ·m | Optimized rau kev ua haujlwm zoo heev ntawm Graphite susceptor induction cua sov. |
Cov txiaj ntsig ntawm kev tsim kho vaj tse tseem ceeb:
1. Kev Tiv Thaiv Kev Kub Siab Zoo Tshaj Plaws: Muaj peev xwm ua tau ntev mus tas li qhov kub thiab txias sai (saum toj no 1500 ° C) yam tsis muaj kev tawg lossis tawg.
2. Kev Tsis Muaj Tshuaj Lom ZemTsis muaj zog kiag li los ntawm H2, NH3, cov pa roj silane, thiab cov tshuaj ntxuav hnyav.
3. Kev Sib Piv ntawm Coefficient of Thermal Expansion (CTE)VET Energy txoj kev tsim SiC ua rau cov txheej txheem thermal nthuav dav ntawm SiC txheej nrog lub graphite core, tiv thaiv kev tawg ntawm cov txheej thaum kub heev.
4. Lub Luag Haujlwm & Daim Ntawv Thov hauv Kev Ua Haujlwm Semiconductor
Cov khoom siv graphite uas muaj kev ntseeg siab ua haujlwm ua cov khoom tseem ceeb hauv ntau kauj ruam tseem ceeb ntawm kev tsim khoom semiconductor:
(1) CVD thiab MOCVD Epitaxial Kev Loj Hlob (Epi)
Hauv kev tsim khoom ntawm GaN LED, SiC lub zog hluav taws xob epitaxy, thiab silicon wafer epi-growth, zaj duab xis tuab thiab doping uniformity nyob ntawm qhov sib xws ntawm thermal field. Graphite susceptors faib cua sov sib npaug thoob plaws ib lossis ntau-wafer configurations thaum lub sijhawm tig, suppressing thermal stress-induced wafer bowing lossis slip lines.
(2) Kev Loj Hlob Crystal Ib Leeg (PVT Txoj Kev)
Thaum lub sijhawm Silicon Carbide (SiC) thiab Sapphire crystal loj hlob ntawm Physical Vapor Transport (PVT), tus susceptor txhais qhov thermal zone gradient, ncaj qha coj cov ingot ib leeg thiab txo qhov ceev ntawm dislocation.
(3) Kev Ua Kub Sai (RTP) & Kev Ua Kub Annealing
Siv cov cua sov graphite susceptor induction zoo, lub platform ua rau lub sijhawm teb thermal sai heev uas xav tau rau kev ua kom cov lattice annealing tom qab cog thiab kev sib koom ua ke.
5. Vim li cas ho xaiv VET Energy?
Nrog rau qhov yuav tsum tau ua kom muaj zog ntawm cov khoom xa tuaj, kev ua kom huv si heev, thiab lub neej ua haujlwm ntev,VET Zogsawv tawm ua tus khub koom tes engineering thoob ntiaj teb uas ntseeg siab tau:
1. Kev Ua Haujlwm Me Me Uas Muaj Kev Ntsuas Zoo: Cov chaw ua haujlwm CNC ntau-axis ua rau muaj cov hnab tshos wafer sib xyaw, cov qhov me me, thiab cov pa roj aerodynamic uas haum rau qhov siab tshaj plaws mus txog qib micrometer.
2. Kev Tso Tawm SiC CVD Siab Tshaj PlawsPeb cov txheej txheem CVD tshwj xeeb ua tiav cov txheej txheem SiC uas ntom ntom heev, ua rau daim iav ci ntsa iab uas ua rau lub voj voog ua haujlwm ntev dua 30%.
3. Ib puag ncig ua haujlwm huv siKev ntxuav kom huv si thiab kev tswj hwm chav huv si lav tag nrho cov tshauv uas muaj nyob hauv qab 5 ppm, ua kom tau raws li cov qauv nruj ntawm OEM semiconductorCov qauv Fab.
4. Tus Nqi Zoo Tshaj Plaws ntawm Kev Muaj Tswv (CoO)VET Energy muab lub sijhawm ua haujlwm sai dua nrog rau kev sib tw nqi-rau-kev ua tau zoo, pab cov neeg tsim cov chips txo cov nuj nqis siv.
Lub sijhawm tshaj tawm: Lub Yim Hli-14-2026