English

Xalalka Kululeeyaha Garaafiga ee Nadiifka Sare leh ee loogu talagalay Semiconductor Epitaxy

Xalalka Kululeeyaha Garaafiga ee Nadiifka Sare leh ee loogu talagalay Semiconductor Epitaxy

Hawsha semiconductor-ka heerkulka sare sida MOCVD (Qaybinta Uumiga Kiimikada ee Birta-Organic) iyo koritaanka epitaxial-ka SiC, xakamaynta goobta kulaylka ayaa si toos ah u go'aamisa isku mid ahaanshaha dhumucda dhigista filimka, fiirsashada daawada, iyo wax soo saarka ugu dambeeya ee wafer. Iyada oo ah qayb muhiim ah oo ka mid ah goobta kulaylka,Kuleyliyaha Graphite-ka ee Nadiifka Sare lehwaa inay si joogto ah oo joogto ah u shaqeeyaan heerkul aad u daran oo ka sarreeya 1600°C gudaha deegaannada gaaska habka aadka u daxalaysan. Iyada oo la isku darayo daraasadaha kiisaska codsiga macaamiisha ee dhabta ah iyo aqoonta badeecadaha muhiimka ah, maqaalkani wuxuu bixiyaa falanqayn qoto dheer oo ku saabsan faa'iidooyinka farsamo, naqshadeynta qaab-dhismeedka, iyo doorka muhiimka ah ee kuleyliyeyaasha garaafka saafiga sare leh ee wax soo saarka wafer semiconductor.

Dulmar Guud oo ku saabsan Xalka iyo Halbeegyada Muhiimka ah

Warshadaha Geedi socodka Xalka Muhiimka ah Natiijooyinka la xaqiijiyay
Semiconductor-ka Jiilka 3aad (SiC / GaN Epitaxy) 6″ / 8″ SiC Heerkulka Sare ee Epitaxial CVD Kuleyliyaha Isotropic Graphite + 150μm CVD SiC dahaadh Midaysanaan ±0.8% | Cilladaha -85% | Keydinta €85,000/sanadkii

Maxaad u dooranaysaa kuleyliyaha garaafiga ee saafiga ah ee sare ee nidaamyada MOCVD?

Qaadashada Muhiimka ah: Kuleyliyeyaasha garaafiga ee saafiga ah waxay bixiyaan kuleyl aad u fiican iyo qaybinta saxda ah ee goobta heerkulka, taasoo si wax ku ool ah u baabi'inaysa walbahaarka kulaylka ee gudaha qolka falcelinta si loo hubiyo koritaanka lakabka epitaxial ee tayo sare leh.

Hawsha muhiimka ah sida MOCVD iyo GaN/SiC epitaxy, xitaa isbeddellada heerkulka yar yar (>2°C) waxay keeni karaan isbeddello mowjadaha ama cillado kiristaalo ah oo ku dhaca lakabka epitaxial. Ka faa'iidaysiga kulaylka sare (100-150 W/m·K) iyo isku-darka aad u hooseeya ee ballaarinta kulaylka (CTE), walxaha garaafka saafiga ah ee saafiga ah si habsami leh oo degdeg ah ayay kulaylka u maareeyaan si siman oo dhan dusha sare ee susceptor-ka iyo wafer-ka.

Midaynta Goobta Heerkulka iyo Xakamaynta Aagag Badan

Si looga hortago khasaaraha shucaaca kulaylka ee cidhifyada qolka epitaxy, kuleyliyeyaasha garaafka ee saafiga ah waxay badanaa ku daraan naqshad xakameyn heerkul oo madax-bannaan oo aag badan leh. Iyada oo loo marayo hagaajinta aagagga iska caabbinta saxda ah, injineeradu waxay habeeyaan meelaha wareegyada iskutallaabta ah iyo iska caabbinta korontada iyadoo loo eegayo sifooyinka luminta kulaylka ee goobta socodka qolka. Tani waxay ilaalinaysaa kala duwanaanshaha goobta heerkulka ee aagga koritaanka wafer-ka si adag ±1°C, taasoo dammaanad qaadaysa isku dheelitirka korantada ee dhammaan wafer-ka ku jira diskka.

Xakamaynta Mawduuca Dambaska iyo Hubinta Deegaanka Aad u Nadiifsan

Hawsha epitaxy-ga semiconductor-ka ayaa si aad ah ugu nugul wasakhda birta. Graphite-ka warshadaha ee caadiga ah wuxuu ka kooban yahay walxo bir ah oo raad raac ah sida birta (Fe), nikkel (Ni), iyo naxaas (Cu), kuwaas oo si fudud u lumiya oo u faafa lakabka epitaxial heerkulka sare, taasoo wiiqaysa danabka burburka qalabka iyo dhaqdhaqaaqa side-ka. Kuleyliyeyaasha graphite-ka ee saafiga ah waxay maraan hababka nadiifinta koloriin heerkulka sare, iyagoo yareynaya wadarta guud ee dambaska ilaa 5 ppm (iyo ka hooseeya 2 ppm heerka semiconductor-ka heerka sare), iyagoo ka hortagaya wasakhaynta isdhaafka ah ee wafer-ka epitaxial ee ka imanaya wasakhda goobta kulaylka ee isha.

Qaybaha Kululaynta Garaafiga ee Sare ee Habaynta Wafer-ka Semiconductor

Qaadashada Muhiimka ah: Qaab-dhismeedka wareegga joomatari ee garaafiga ee la hagaajiyay oo ay weheliso sifooyinka cadaadiska taban ee heerkulka sare leh ayaa si weyn u yareeya heerka isbeddelka walxaha iyo daalka inta lagu jiro wareegga kulaylka ee soo noqnoqda.

Walxaha kuleylinta semiconductor-ka waxay maraan wareegyo kuleyl iyo qaboojin degdeg ah oo soo noqnoqda laga bilaabo heerkulka qolka ilaa kumanaan darajo Celsius ah. Si ka duwan fiilooyinka kuleylinta birta ah (sida tungsten ama molybdenum), kuwaas oo u muuqda inay dib u soo noqdaan, noqdaan kuwo jajaban, ama libdha heerkulka sare, graphite wuxuu muujiyaa astaamo jireed oo gaar ah: xooggu wuu kordhaa heerkulka.

Xoogga Farsamada Heerkulka Sare iyo Iska caabinta Daalka Dhismaha

Xoogga jiidista iyo dabacsanaanta ee walxaha garaafitku wuu kordhaa marka heerkulku kor u kaco, taasoo u dhaxaysa 2000°C iyo 2500°C. Astaantan waxay hubineysaa in kuleyliyeyaasha garaafitku aysan la kulmin jab farsamo ama jab qaab dhismeed marka ay ku jiraan shucaaca kulaylka daran iyo hawlgalka heerkulka sare. Sidaas darteed, xasilloonida iska caabbinta korontada ayaa la ilaaliyaa wareegyada hawlgalka ee dheer, taasoo si weyn hoos ugu dhigaysa wakhtiga dayactirka aan la qorsheyn.

Qaab-dhismeedka Mashiinka 3D ee Sax ah iyo Qaab-dhismeedka Wareegga ee Isku-dhafan

Falaadhaha casriga ah ee semiconductor-ka waxay u baahan yihiin qaab-dhismeedyo meeleed oo aad u kooban. Graphite-ka saafiga ah wuxuu leeyahay mashiinno heer sare ah waxaana lagu farsameyn karaa iyada oo loo marayo mashiinka CNC ee 5-axis oo sax ah oo loo beddelo qaabab wareeg oo adag - sida qaab-dhismeedka saddex-waji ee dunta leh, waddooyinka laalaaban ee serpentine, iyo wareegyada laba-helix ee la isku dhejiyay. Qaab-dhismeedkan joomatari ee saxnaanta sare leh wuxuu kordhiyaa aagga dusha sare ee kululaynta meel xaddidan, isagoo gaaraya wax soo saar cufnaanta awoodda sare leh oo leh saameyn ku-meel-gaar ah oo hooseeya.

Faa'iidooyinka Waxqabadka Muhiimka ah ee Kuleyliyaha Graphite ee SiC ee Dahaarka leh

Qaadashada Muhiimka ah: Dahaarka dusha sare ee cufan ee CVD SiC (Silicon Carbide) wuxuu si buuxda u xannibaa weerarka kiimikada iyo qallajinta haydarojiin ee ka imanaya gaasaska gardarrada leh, taasoo si weyn u kordhinaysa cimriga adeegga kuleyliyaha.

Si loo adkeeyo jawiyada geedi socodka adag - sida jawiga yareeya haydarojiinta heerkulka sare ama gaasaska qoritaanka ee ka kooban koloriin/fluorine - ku darista lakabka Silicon Carbide ee cufan (CVD SiC Coating) dusha sare ee substrate-ka graphite ee saafiga sare leh ayaa noqotay xalka heerka warshadaha.

Iska caabbinta Hidjiinada iyo Daadinta Qaybaha aan lahayn

Inta lagu jiro SiC iyo Silicon epitaxy, fiirsashada sare ee H2gaasku si xun ayuu u xoqaa garaafitka aan dahaarka lahayn heerkulka sare (qolof-qolofku wuxuu sameeyaa gaas methane ah), taasoo ka dhigaysa dusha sare ee garaafitka mid dabacsan, u nugul inuu jajabo, isla markaana abuura wasakhowga walxaha. Dahaarka CVD SiC ee cufan ayaa 100% shaabadeeya daloolada yaryar ee dusha sare ee garaafitka, isagoo gebi ahaanba kala soocaya nabaad-guurka gaaska oo abuuraya jawi geeddi-socod oo aad u nadiif ah oo aan lahayn daadinta walxaha.

Waara ee Warbaahinta Gardarrada leh iyo Dhimista Wadarta Kharashka Lahaanshaha (TCO)

Deegaannada falcelinta ee ku lug leh gaasaska aadka u firfircoon sida HCl iyo NH3Dahaarka CVD SiC wuxuu muujiyaa firfircooni kiimiko oo heer sare ah. Ma aha oo kaliya inuu ka ilaaliyo substrate-ka graphite daxalka laakiin sidoo kale wuxuu kordhiyaa wareegga beddelka walxaha kuleyliyaha (badanaa wuxuu kordhiyaa cimriga adeegga in ka badan 200%). Tani waxay si weyn hoos ugu dhigaysaa Wadarta Kharashka Lahaanshaha (TCO) ee warshadda semiconductor-ka iyo qiimaha la dhimay halkii wafer.

Daraasad Kiis: Xalinta Midnimada Kulaylka iyo Wasakhowga Walxaha ee SiC Epitaxy

Qaadashada Muhiimka ah: Iyada oo la habeynayo kuleyliyaha saddex-aag ee garaafka leh oo leh dahaar 150μm CVD SiC ah, VET Energy waxay si guul leh u xallisay jabka filimka geeska iyo caqabadaha cilladaha walxaha ee macaamiisha epitaxy ee 6-inch SiC.

Dhibcaha Xanuunka Macaamiisha:Soo-saare caan ah oo ka tirsan jiilka 3aad ee semiconductor epitaxy oo Jarmalka ku yaal ayaa wajahay laba caqabadood oo muhiim ah intii lagu jiray koritaanka epitaxial-ka 6-inch SiC (heerkulka habka 1650°C, H)2+ Jawiga TCS): Marka hore, leexashada dhumucda lakabka epitaxial ee geesaha wafer-ka ayaa gaartay ilaa ±3.8%, taasoo keentay cillado qalabka geesaha ah. Marka labaad, kuleyliyaha OEM graphite ee asalka ah wuxuu muujiyay xoqid hydrogen dusha sare ah oo daran iyo daadasho ka dib 120 saacadood oo keliya oo la isticmaalay, taasoo keentay koror ku yimid hoos u dhaca walxaha ku jira qolka falcelinta - taasoo ka badan heerarka cufnaanta cilladaha tayada celcelis ahaan 3×.

Baadhista Tamarta VET iyo Xalka Gaarka ah

Markii la hawlgeliyay, kooxda injineernimada VET Energy waxay sameeyeen jilitaanno isku xiran oo koronto-kuleyl iyo dareere ah oo ku saabsan kuleyliyaha asalka ah ee OEM. Baadhitaanku wuxuu muujiyay magdhow ku filan oo korontada kuleyliyaha ah oo ku yaal geesaha iyo dildilaaca yar yar/dillaaca cadaadiska kulaylka ee dusha sare ee dahaarka SiC (dhumucda dahaarka waxay ahayd 60μm oo keliya iyadoo leh dhegdheg daciif ah). Jawaab ahaan, VET Energy waxay bixisay xal injineernimo oo bartilmaameedsan:

  • Hagaajinta Dhismaha Goobta Kulaylka:Waxaan hirgeliyay naqshad xakameyn madax-bannaan oo 3-aag ah, taasoo hoos u dhigtay isgoyska kuleylinta joomatari 8% aagagga kala firdhinta geeska si kor loogu qaado cufnaanta awoodda maxalliga ah.
  • Cusbooneysiinta Substrate-ka Nadiifka Sare leh:Graphite isostatic isostatic ah oo cufnaan sare leh oo la xushay oo leh dambas ka yar 2 ppm, oo si sax ah ula jaanqaadaya isku-dhafka ballaarinta kulaylka (CTE) dahaarka SiC (isbarbardhigga CTE >98%).
  • Cusbooneysiinta Habka CVD SiC:Waxaan isticmaalay hab la xoojiyay oo lagu kaydiyo CVD, iyadoo la kordhinayo dhumucda dahaarka dusha sare ee SiC ilaa 150 ± 10 μm oo leh qaab-dhismeed cufan oo aan lahayn daloolo oo awood u leh inuu iska caabiyo 1700°CH2biyo raacid.

Natiijooyinka Hirgelinta & Qiimaha Macaamiisha La Gaarsiiyay

Ka dib 30 maalmood oo isku xigta oo xaqiijinta khadka wax soo saarka ah, macaamiishu waxay soo sheegeen horumaro waxqabad oo aad u wanaagsan: isku-dhafka dhumucda epitaxial-ka oo buuxa (oo ay ku jiraan ka saarista geesaha 3mm) ayaa si weyn u soo hagaagay laga bilaabo±3.8% ilaa ±0.8%kuleyliyaha ayaa si joogto ah u shaqeynayayin ka badan 400 saacadoodiyada oo aan lahayn wax dildilaac dahaadh ah ama dusha sare oo daadanaya; cillado hal-socod ah oo qol ah (>0.5μm) ayaa ahaahoos u dhac 85%Tani waxay si toos ah u keentay koror 12% ah oo ku yimid wax soo saarka jajabka ugu muhiimsan halkii wafer ah waxayna hoos u dhigtay kharashyada dayactirka qalabka sanadlaha ah qiyaastii€85,000.

Su'aalaha Badiya La Weydiiyo

1. Maxaa kuleyliyeyaasha garaafitka ee saafiga ah si toos ah ugu beddeli karin dhammaan kuleyliyeyaasha birta ah?
Graphite-ka saafiga ah ee sare wuxuu si dhakhso ah u oksijiineeyaa marka uu oksijiin joogo heerkul sare (oksaydh muhiim ah wuxuu ka bilaabmaa 400°C). Sidaa darteed, waxaa lagu dabaqi karaa oo keliya qolalka falcelinta ee shaabadaysan oo leh gaas faakiyuum ah, oo aan firfircoonayn (tusaale ahaan, Ar, N)2), ama si xooggan u yareynaya (tusaale ahaan, H2) deegaanno. Deegaannada ay ku jiraan oksijiin, waxaa weli loo baahan yahay walxo gaar ah oo kuleyliya birta ama dhoobada.
2. Sidee ayay dhumucda iyo isku-midnimada dahaarka CVD SiC u saameeyaan kuleyliyeyaasha garaafka?
Haddii dahaadhku aad u khafiifsan yahay (<80μm) ama aanu isku mid ahayn, daloolada yaryar ayaa soo ifbaxa, taasoo u oggolaanaysa gaaska inuu galo substrate-ka kaas oo sababa xoqidda haydarojiin ee deegaanka iyo jajabka. Taas beddelkeeda, haddii dahaadhku aad u qaro weyn yahay (>200μm), is-waafajinta yar ee CTE ee u dhaxaysa graphite iyo SiC waxay dhalin kartaa dildilaacyo cadaadis kuleyl ah inta lagu jiro kuleylinta/qaboojinta degdega ah. Caadiyan, dahaadh CVD SiC oo cufan oo aan cillad lahayn oo ah 120–150 μm ayaa bixiya dheelitirka farsamo ee ugu habboon.
3. Maxaa sababa iska caabbinta korontada ee kuleyliyeyaasha garaafka, sideese macaamiishu ula socon karaan?
Kala-baxa iska caabbinta guud ahaan waxaa sababa hoos u dhaca aagga isgoyska ah oo ay ugu wacan tahay oksaydheynta raadadka ama nabaad-guurka kiimikada muddada dheer ee ka yimaada gaasaska aashitada/alkali ee xooggan, ama faafinta micro-crack ee gudaha. Macaamiishu waxay la socon karaan qalooca iska caabbinta V/I (danabka/current) ee waqtiga-dhabta ah ee kuleyliyaha; haddii la ogaado kala-baxa iska caabbinta oo ka badan ±5%, waxay calaamad u tahay cillad dahaarka oo iman karta ama dhaawac substrate ah, taasoo u baahan kormeer iyo beddel waqtigeeda ah.

Xulashada kuleyliyeyaasha garaafitka tayo sare leh ee saafiga ah ayaa muhiim u ah hubinta hufnaanta kulaylka sare, xakamaynta heerkulka saxda ah, iyo wax soo saarka waferka sare ee wax soo saarka semiconductor-ka casriga ah. Waxaan kugu martiqaadeynaa inaad wax badan ka barato qaybahayaga garoonka kulaylka ee dhammaystiran iyo kuwa la habeeyey.Kuleyliyaha Graphite ee SiC dahaarka lehxalalka, ama sahamino xalalkayaga,Qalabka Semiconductor-kakhadka wax soo saarka si aad u sii wanaajiso wax soo saarkaaga epitaxy iyo isku halaynta goobta kulaylka.
Waqtiga boostada: Agoosto-11-2026
WhatsApp Online Chat!