Ekwenziweni kwamadivayisi e-semiconductor yesimanje kanye nokukhiqizwa kwe-semiconductor yesizukulwane sesithathu (njenge-Silicon Carbide [SiC] kanye ne-Gallium Nitride [GaN]), izingxoxo zemboni zivame ukugxila emishinini ye-lithography ye-EUV ethuthukisiwe kakhulu, ama-plasma etchers, noma ubumsulwa begesi obungaphambi kwesikhathi. Kodwa-ke, ngaphakathi kwendawo ehlanzekile kakhulu, ebolile kakhulu, kanye nokushisa okuphezulu kwegumbi lokusabela kuhlezi iqhawe elibalulekile elingakadunyiswa: i-Graphite susceptor.
1. Yini i-Graphite Susceptor?
A Isivikelo se-Graphiteiyisakhi esisebenzayo esiklanywe ngokunemba esenziwe nge-graphite ebumbeke ngokusobala noma ekhishwe ngaphandle, evame ukuba ne-disk efana ne-disk, efakwe ephaketheni, noma eyenziwe ngokwezifisoamajiyometri anezinhlangothi ezintathu aklanyelwe ukulingana namakamelo okusabela athile.
Emishinini efana ne-Chemical Vapor Deposition (CVD), i-Metal-Organic Chemical Vapor Deposition (MOCVD), kanye ne-Rapid Thermal Processing (RTP), umsebenzi oyinhloko wepulatifomu yokuthwala ukugcina ama-wafer e-semiconductor ngokuphephile ngenkathi esebenza njenge-heat exchanger eyinhloko. Isebenzisa izindlela zokushisa ze-Graphite susceptor induction heating, le ngxenye imunca ngokushesha i-Radio Frequency (RF) noma amandla kagesi e-microwave bese iwaguqula abe amandla okushisa afanayo, okwenza kube lula ukulawula ukushisa okunembile kwezinga le-millisecond kulo lonke ubuso be-wafer.
2. Ukwakheka Kwezinto Nesakhiwo Esincane: Kungani I-Isostatic Graphite + CVD SiC Coating?
I-graphite eluhlaza engagqokwanga ayikwazi ukusinda ezimoyeni zamakhemikhali ezinamandla kanye nezidingo zokuhlanzeka eziqinile zokwenziwa kwe-semiconductor. Ama-susceptor e-Graphite anamuhla asebenza kahle kakhulu asebenzisa uhlelo olukhethekile olunezingqimba ezimbili:
(1) I-Substrate ye-Graphite Engacwengekile Kakhulu
I-substrate eyinhloko ikhiqizwa kusetshenziswa i-graphite ecindezelwe nge-isostatically. Ngokwenza ngcono ukulungiswa kwe-graphite micro crystalline, kufinyelela izakhiwo zomzimba ze-isotropic, i-porosity ephansi, kanye namandla aphezulu okuguquguquka kwemishini, okuhlinzeka ngesisekelo esifanele samajiyometri ephaketheni le-wafer eliyinkimbinkimbi le-micro-machining.
(2) Isimbozo Esivikelayo se-CVD Silicon Carbide (SiC)
Ukusebenzisa i-Chemical Vapor Deposition, ungqimba oluqinile kakhulu lwe-poly-crystalline B-SiC (ngokuvamile ubukhulu obuyi-10 kuya ku-100 um kanye nobumsulwa obuyi-99.999%) luyakhuliswa phezu kwe-graphite substrate. Lokhu kuhlanganiswa kuvala ngokuphelele ama-micro-pores angaphezulu kwe-graphite, kuvimbela ukuchitheka kwezinhlayiya, futhi kunikeza isithiyo esingangenisi amanzi ngokumelene namagesi aqothulayo njenge-HCI, i-NH,, kanye nama-compounds ane-fluorinated.
3. Izakhiwo Ezibalulekile Zomzimba kanye Nemininingwane Yezinto Ezibalulekile
Ngokusekelwe ekuhlolweni okuqinile kwelabhorethri kanye nezilinganiso zomkhakha eziqinisekisiwe, ama-susceptor e-Graphite ambozwe ngobumsulwa obuphezulu abonisa lezi zilinganiso ezibalulekile zomzimba:
| Ipharamitha Yomzimba/Yamakhemikhali | Inani Elijwayelekile Lokubhekisela | Inzuzo Yenqubo Nomphumela Wokusebenza |
| Okuqukethwe Komlotha Okuphelele (Ubumsulwa) | < 5 ppm (Inkomba: Idatha Yemininingwane Ye-Graphite ye-XR) | Iqeda ukungcola kwensimbi, iqinisekisa ukuthi izingqimba ze-epitaxial azinazo iziphambeko. |
| Ubuningi obubonakalayo | I-substrate: 1.85 g/cm³ | I-SiC: 3.21 g/cm³ | I-inertia ephansi yokushisa ukuze kube namazinga okusheshisa okusheshayo okuhambisana negobolondo elingangeni. |
| Amandla Okugobeka | ≥ 49 MPa (Isisekelo) | ~450 MPa (SiC) | Imelana nokucindezeleka okukhulu kokushisa kanye nomthwalo osindayo we-wafer ngaphandle kokugoba. |
| Izinga Lokushisa Eliphezulu Lokusebenza | > 1500°C – 1800°C | Igcina ubuqotho besakhiwo ngesikhathi sokukhula kwekristalu ye-SiC ekushiseni okuphezulu. |
| Ukuqhuba Okushisayo | ~116 W/m·K (100 kcal/cm·h·°C) | Isabalala ngokushesha ezindaweni ezishisayo ezisendaweni, ifinyelele i-gradient encane yokushisa (ΔT). |
| Ukumelana Nogesi | ~11 μΩ·m | Kwenzelwe ukushisa kwe-Graphite susceptor induction esebenza kahle kakhulu. |
Izinzuzo Zobunjiniyela Obuyinhloko:
1. Ukumelana Nokushaqeka Okuphezulu Kokushisa: Iyakwazi ukubekezelela imijikelezo yokushisa nokupholisa eqhubekayo (ngaphezu kuka-1500°C) ngaphandle kokuqhekeka noma ukuhlukanisa.
2. Ukungasebenzi Kwamakhemikhali: Ayinawo nhlobo umonakalo obangelwa yi-H2, i-NH3, amagesi e-silane, kanye nezinto zokuhlanza zamakhemikhali ezinamandla.
3. Ukulinganisa i-Coefficient of Thermal Expansion (CTE): Inqubo yokufaka i-SiC ye-VET Energy ivumelanisa ukuziphatha kokukhula kokushisa kwe-SiC coating ne-graphite core, okuvimbela ukuqhekeka kwe-coating emazingeni okushisa aphezulu.
4. Indima kanye Nezicelo Ekucubungulweni Kwe-Semiconductor
Ama-susceptor e-Graphite athembeke kakhulu asebenza njengezingxenye eziyisisekelo ezivumelayo ezinyathelweni eziningana ezibalulekile zokukhiqiza ama-semiconductor:
(1) I-CVD kanye ne-MOCVD Ukukhula Kwe-Epitaxial (Epi)
Ekwenziweni kwe-GaN LED, i-epitaxy yedivayisi yamandla ye-SiC, kanye nokukhula kwe-silicon wafer epi-growth, ukujiya kwefilimu kanye nokufana kwe-doping kuncike kakhulu ekuhlanganeni kwensimu yokushisa. Ama-susceptor e-graphite asabalalisa ukushisa ngokulinganayo kuzo zonke izilungiselelo ze-single noma ze-multi-wafer ngesikhathi sokujikeleza, ecindezela imigqa ye-wafer egoba noma eshelelayo ebangelwa ukucindezeleka kokushisa.
(2) Ukukhula Kwekristalu Elilodwa (Indlela ye-PVT)
Ngesikhathi sokukhula kwekristalu yeSilicon Carbide (SiC) kanye neSapphire nge-Physical Vapor Transport (PVT), i-susceptor ichaza i-gradient ye-thermal zone, iqondisa ngqo ukwakheka kwe-single-crystal ingot kanye nokunciphisa ubuningi be-dislocation.
(3) Ukucubungula Okusheshayo Kokushisa (RTP) kanye Nokunamathisela
Isebenzisa ukushisa kwe-Graphite susceptor induction okusebenzayo, ipulatifomu ivumela izikhathi zokuphendula ezishisayo ezisheshayo ezidingekayo ukuze kufakwe i-lattice annealing kanye nokwakheka kwe-junction ngemuva kokufakelwa.
5. Kungani Ukhetha Amandla E-VET?
Njengoba kunezidingo ezidingayo zokuqina kochungechunge lokuhlinzeka, ubumsulwa obukhulu, kanye nokuphila isikhathi eside kwenkonzo,Amandla e-VETuvelele njengomlingani wobunjiniyela bomhlaba wonke othembekile:
1. Ubuchwepheshe Bokuchwephesha Obuqondile: Izikhungo zomshini we-CNC ezinama-axis amaningi zivumela amaphakethe e-wafer ayinkimbinkimbi, ama-micro-grooves, kanye neziteshi zegesi ze-aerodynamic ezenziwe ngokwezifiso ezine-tolerances kuze kufike ezingeni le-micrometer.
2. Ukufakwa kwe-Advanced Dense CVD SiC: Inqubo yethu ye-CVD eyimfihlo ifinyelela ukumbozwa kwe-SiC okujiyile kakhulu, okupholisha isibuko okwandisa isikhathi sokusebenza komjikelezo wokushisa ngaphezu kuka-30%.
3. Indawo Yokucubungula Ehlanzekile Kakhulu: Ukuhlanza okugcwele kanye nokuphathwa kwegumbi lokuhlanza kuqinisekisa ukuthi okuqukethwe komlotha okuphelele kugcinwa ngaphansi kwe-5 ppm njalo, okwanelisa i-semiconductor eqinile ye-OEMIzindinganiso ze-Fab.
4. Izindleko Ezithuthukisiwe Zobunikazi (CoO): I-VET Energy inikeza izikhathi zokuhola ezisheshayo kanye nezilinganiso zokuncintisana zamanani nokusebenza, okusiza abenzi bama-chip ukunciphisa izindleko ezisetshenziswayo.
Isikhathi sokuthunyelwe: Agasti-14-2026