Ngā Otinga Whakamahana Graphite Parakore-Teitei mō te Epitaxy Semiconductor
I roto i ngā tukanga haurua-rahi pāmahana teitei pērā i te MOCVD (Metal-Organic Chemical Vapor Deposition) me te tipu epitaxial SiC, ka whakatau tika te mana whakahaere o te papa wera i te ōritetanga o te matotoru o te whakatakotoranga kiriata, te kukū tāpiri, me te hua o te wafer mutunga. Hei wāhanga matua o te papa wera, ko teWhakamahana Karāwhite Parakore-TeiteiMe mahi pūmau, me mahi tonu hoki i raro i ngā pāmahana tino nui atu i te 1600°C i roto i ngā taiao hau tukatuka tino waikura. Mā te whakakotahi i ngā rangahau take tono kiritaki pono me te mōhiotanga hua nui, ka whakaratohia e tēnei tuhinga he tātaritanga hohonu o ngā painga hangarau, te hoahoa hanganga, me te tūranga matua o ngā whakamahana karāhe parakore-teitei i roto i te hanga papa whakarewa haurua-haurua.
Tirohanga Whānui mō te Otinga me ngā Inenga Matua
| Ahumahi | Tukanga | Otinga Matua | Ngā Hua kua Whakamātauhia |
|---|---|---|---|
| Pūhiko Ārahi o te Reanga Tuatoru (Epitaxy SiC / GaN) | CVD Epitaxial Pāmahana-Tiketike SiC 6″ / 8″ | Whakamahana Karāpiti Isotropic + Paninga SiC CVD 150μm | Te ōritetanga ±0.8% | Ngā hapa -85% | Ngā penapena €85,000/tau |
He aha i whiriwhiri ai i te whakamahana karāwhite parakore-teitei mō ngā pūnaha MOCVD?
I roto i ngā tukanga nui pērā i te epitaxy MOCVD me te GaN/SiC, ahakoa ngā piki me ngā heke o te pāmahana iti rawa (>2°C) ka taea te arahi ki ngā nekehanga roangaru, ki ngā hapa karaihe rānei i roto i te paparanga epitaxial. Mā te whakamahi i te kawe wera teitei (100–150 W/m·K) me te tauwehenga tino iti o te whakawhānui wera (CTE), ka tere, ka maeneene hoki ngā rauemi graphite teitei te kawe wera puta noa i te mata o te susceptor me te wafer.
Te ōritetanga o te mara pāmahana me te whakahaere maha-rohe
Hei ārai i ngā ngaronga irahiko wera i ngā taha o te rūma epitaxy, ko ngā whakamahana graphite teitei-parakore e whakauru ana i tētahi hoahoa whakahaere pāmahana motuhake maha-rohe. Mā te whakatikatika tika i te rohe ātete, ka whakarite ngā miihini i ngā horahanga whakawhiti-wāhanga o te ara iahiko me te ātete hiko kia rite ki ngā āhuatanga ngaronga wera o te mara rere o te rūma. Mā tēnei ka mau tonu te rerekētanga o te mara pāmahana puta noa i te rohe tipu o te wafer i roto i te ±1°C anake, ka whakamana i te ōritetanga hiko puta noa i ngā wafer katoa i runga i te kōpae.
Te Whakahaere i te Ihirangi Pungarehu me te Whakapūmau i te Taiao Tino Parakore
He tino tairongo ngā tukanga epitaxy semiconductor ki ngā poke konganuku. Kei roto i te karāpiti ahumahi paerewa ngā huānga konganuku iti pēnei i te rino (Fe), te nikara (Ni), me te parahi (Cu), e ngāwari ana te memeha me te horapa ki roto i te paparanga epitaxial i ngā pāmahana teitei, ka whakararu i te ngaohiko pakaru o te taputapu me te nekehanga kawe. Ka whai tukanga purenga chlorine pāmahana teitei ngā whakamahana karāpiti parakore, ka whakaiti i te ihirangi pungarehu katoa ki raro iho i te 5 ppm (me raro iho i te 2 ppm mō te taumata semiconductor teitei), ka ārai i te poke whakawhiti o ngā papa epitaxial mai i ngā poke o te mara wera i te pūtake.
Ngā Huānga Whakamahana Graphite Matatau i roto i te Tukatuka Wafer Semiconductor
Ka tere te whakamahana me te whakamatao o ngā wae whakamahana haurua-arataki mai i te pāmahana rūma ki ngā mano nekehanga Celsius. Kāore i rite ki ngā waea whakamahana whakarewa (pērā i te tungsten, te molybdenum rānei), e hangai ana ki te whakakōhatu anō, ka pakarukaru, ka piko rānei i ngā pāmahana teitei, he āhuatanga ā-tinana ahurei tō te karāpeti: ka piki ake te kaha i te pāmahana.
Te Kaha Mīhini i ngā Pāmahana Teitei me te Ātete ki te Ngenge Hanganga
Ka piki ake te kaha kume me te kaha piko o ngā rauemi karāpeti i te pikinga o te pāmahana, ka eke ki te taumata teitei i waenga i te 2000°C me te 2500°C. Mā tēnei āhuatanga ka kore ngā whakamahana karāpeti e piko ā-mīhini, e pakaru rānei te hanganga i raro i te hihi wera nui me te mahi pāmahana teitei. Nō reira, ka tiakina te pumau o te ātete hiko i roto i ngā huringa mahi roa, ka whakaiti nui i te wā kore mahi tiaki kāore i whakamaheretia.
Te Mīhini 3D Tika me ngā Tahora Porowhita Matatini
He tino kiato ngā whakatakotoranga ā-wāhi e hiahiatia ana e ngā tauhohenga haurua-haurua hou. He tino pai te mahi miihini o te karāpeti tino-parakore, ā, ka taea te tukatuka mā te miihini CNC 5-tuaka tino-tika ki roto i ngā tauira ara iahiko uaua—pērā i ngā hanganga miro-wāhanga-toru, ngā ara takai serpentine, me ngā ara iahiko takirua-helix. Mā ēnei whirihoranga āhuahanga tino-tika ka whakanui ake i te horahanga mata whakamahana i roto i te wāhi iti, ka tutuki ai te putanga kaha teitei me ngā pānga iti o te ine hiko.
Ngā Painga Matua o ngā Whakamahana Graphite Paninga SiC
Hei tū atu i ngā taiao tukanga uaua ake—pērā i ngā āhuarangi whakaiti hauwai pāmahana teitei, i ngā hau whakairo kei roto he chlorine/fluorine rānei—ko te whakatakoto i tētahi paparanga Silicon Carbide matotoru (CVD SiC Coating) ki runga i te mata o te papa graphite parakore teitei kua noho hei otinga paerewa mō te ahumahi.
Ātete ki te Whakairo Hauwai me te Kore Matūriki e Ringihia
I te wā epitaxy ana a SiC me Silicon, he nui ngā kukū o te H2Ka haehae kino te hau i te karāpeti kāore i pania i ngā pāmahana teitei (ka hanga te haehae hauwai i te hau methane), ka whakangawari te mata o te karāpeti, ka ngawari te pakarukaru, ka puta he poke matūriki. Ka hiritia e te paninga CVD SiC matotoru ngā pūwero moroiti i runga i te mata o te karāpeti, ka wehea katoatia te mimiti o te hau, ka hangaia he taiao tukanga tino ma me te kore e tukuna he matūriki.
Te Pūmau o te Pāpāho Whakahē me te Whakaiti i te Utu Katoa o te Mana Whakahaere (TCO)
I roto i ngā taiao tauhohenga e whakamahi ana i ngā hau tino hohe pērā i te HCl me te NH3, he pai ake te koretake o ngā paninga CVD SiC. Ehara i te mea ka tiaki noa i te papa graphite mai i te waikura engari ka whakaroa hoki i te huringa whakakapinga o ngā huānga whakamahana (ka whakanui ake i te roa o te mahi mā te neke atu i te 200%). Ka tino whakaitihia e tēnei te Utu Katoa o te Mana (TCO) o te hanga semiconductor me te utu kua whakahekehia mō ia wafer.
Akoranga Take: Te Whakatau i te Taurite Wera me te Parahanga Matūriki i roto i te Epitaxy SiC
Ngā Wāhi Mamae o te Kaihoko:I pāngia tētahi kaihanga epitaxy semiconductor reanga tuatoru rongonui i Tiamana e rua ngā arai nui i te wā e tipu ana te epitaxial SiC 6-inihi (te pāmahana tukanga 1650°C, H2+ Te āhuarangi TCS): Tuatahi, i tae te matotoru o te paparanga epitaxial ki ngā taha o te wafer ki te ±3.8%, ā, i pakaru ai te taputapu taha. Tuarua, i whakaatuhia e te whakamahana karāpeti OEM taketake te haehae hauwai mata me te pakaru i muri i te 120 haora noa iho o te whakamahinga, ā, i hua ake ai te pikinga o ngā maturuturunga matūriki i roto i te rūma tauhohenga—e neke atu ana i ngā paepae kiato hapa kounga mā te 3× i te toharite.
Te Tātaritanga Pūngao VET me te Otinga Ritenga
I te wā i whakamahia ai, i whakahaerehia e te tīma hangarau o VET Energy ngā whakatauira hiko-wera me te rere-wai i runga i te whakamahana OEM taketake. I whakaatuhia e te tātaritanga he iti te utu mana whakamahana i ngā taha me ngā kapiti ahotea moroiti/wera i roto i te paninga SiC mata (he 60μm noa iho te matotoru o te paninga me te ngoikore o te piri). Hei whakautu, i whakaratohia e VET Energy he otinga hangarau kua whakaritea:
- Arotautanga Hanganga Papa Wera:I whakatinanahia he hoahoa whakahaere ātete motuhake e 3-rohe, me te whakaiti i te wāhanga whakawhiti whakamahana āhuahanga mā te 8% tata ki ngā rohe marara taha hei whakanui ake i te kiato mana ā-rohe.
- Whakapai Ake i te Papa Maama-Teitei:I tīpakohia he karāpeti isostatic kiato-teitei me te ihirangi pungarehu <2 ppm, e ōrite ana ki te tauwehenga whānui wera (CTE) me te paninga SiC (CTE e ōrite ana ki te >98%).
- Whakapai ake i te Tukanga CVD SiC:I whakamahia he tukanga whakatakotoranga CVD whakarei ake, i whakanui ake i te matotoru o te paninga SiC mata ki te 150 ± 10 μm me te hanganga kakano matotoru, kore-pūwero e kaha ana ki te ātete i te 1700°CH2te horoi
Ngā Hua Whakatinanatanga me te Uara o te Kaihoko i Tukuna
Whai muri i te 30 rā karapīpiti o te manatoko raina whakaputa, i kōrero te kiritaki mō ngā whakapainga mahi tino pai: kua tino pai ake te ōritetanga o te matotoru epitaxial wafer katoa (tae atu ki te aukati taha 3mm) mai i±3.8% ki te ±0.8%; i mahi tonu te whakamahana mō teneke atu i te 400 hāorakāore he pakaru o te paninga, te pakaru rānei o te mata; ko ngā hapa matūriki o te rūma kotahi-oma (>0.5μm) ikua whakaitihia mā te 85%. Nā tēnei i hua tika mai he pikinga 12% o te hua maramara matua mō ia papa, ā, i whakaitihia ngā utu tiaki taputapu ā-tau mā te tata ki€85,000.
Ngā Pātai Auau
Wā tuku: 11 o Ākuhata 2026