Mu nganda zikora ibikoresho bya semiconductor, gutunganya ubushyuhe bukabije ni ingenzi mu ntambwe zo gukora wafer nko gutwika, gukwirakwiza, gufunga, no gushyira LPCVD mu bikoresho bya semiconductor. Ibi bikorwa akenshi bikorerwa muri sisitemu za semiconductor zikora hagati ya 800°C na 1200°C, aho ubushyuhe budahinduka, kugenzura ubwandu, no guhuza gazi bigira ingaruka ku musaruro wa wafer n'imikorere y'ibikoresho.
Mu bice by'ingenzi by'itanura,Umuyoboro wa SiC ukwirakwiza— izwi kandi nka umuyoboro wa silikoni ukwirakwiza karubide cyangwa umuyoboro wa SiC furnace — igira uruhare runini mu kubungabunga ibidukikije bihamye. Ugereranyije n'imiyoboro gakondo ya quartz furnace, imiyoboro ya SiC itanga ubwiyongere bw'ubushyuhe, imbaraga nziza za mekanike, no kurwanya cyane shimi ikomeye ya semiconductor, bigatuma irushaho kuba ingenzi mu nganda zigezweho za semiconductor.
Umuyoboro wa SiC Diffusion ni iki?
Umuyoboro wa SiC diffusion ni icyumba cya ceramic gifite ubushyuhe bwinshi gikoreshwa mu gukwirakwiza muri semiconductor na sisitemu za LPCVD. Inshingano yacyo y'ibanze ni ugushyiraho ibidukikije bisukuye kandi bihamye byo gutunganya wafer.
Mu gihe cyo gukora, ubwato bwa wafer burimo wafer za silicon bushyirwa imbere mu muyoboro mu gihe imyuka ikoreshwa mu gutunganya inyura mu cyumba munsi y'ubushyuhe bugenzurwa neza. Umuyoboro ukwirakwiza ufasha mu kubungabunga:
●Ubushyuhe buhamye bukwirakwira
●Urugendo rw'umwuka rungana
●Umwanda muke w'udukoko
●Ibikorwa bya shimi bigenzurwa
Imiyoboro ya SiC ikoreshwa cyane muri:
●Amatanura yo gukwirakwiza ibikoresho bya semiconductor
●Sisitemu zo mu itanura rya LPCVD
●Ibikoresho byo gushyushya ubushyuhe
●Sisitemu zo gufunga
Porogaramu zisanzwe zirimo:
●Kuvungagura silicone
●Gukwirakwira kwa fosifore
●Gukwirakwira kwa boroni
● Gushyira polysilicon mu mwanya wayo
●Gushyiramo nitride ya silicon
Mu bikoresho bya none, ibisabwa ku buryo bwo guhuza imikorere y'itanura birakomeye cyane. Urugero, uburyo bwa LPCVD bugezweho bushobora gusaba ubushyuhe bwa wafer buri hagati ya ±1°C na ±3°C mu gace k'itanura. Imikorere y'ubushyuhe bw'umuyoboro w'itanura igira ingaruka ku buryo butaziguye kuri ubu bushobozi.
Impamvu Silicon Carbide (SiC) ikoreshwa mu miyoboro ikwirakwiza amazi
Ikoreshwa ry’imiyoboro ya silikoni ikwirakwira rituruka ku miterere idasanzwe y’ibikoresho bya SiC mu gihe cy’ubushyuhe bwinshi.
Kimwe mu byiza by'ingenzi ni ugukomera kw'ubushyuhe. SiC ishobora gukora buri gihe ku bushyuhe buri hejuru ya 1200°C, mu gihe ikomeza kuba imiterere yayo mu gihe cy'ubushyuhe bukabije.
Indi nyungu y'ingenzi ni ugutwara ubushyuhe. Ubusanzwe ugutwara ubushyuhe bwa SiC ni nko muri ibi bikurikira:
●120–200 W/m·K kugira ngo SiC ibe nziza cyane
●Ugereranyije na quartz kuri ~1.4 W/m·K gusa
Iri tandukaniro rikomeye ryemerera ko ubushyuhe bwihuta kandi bungana mu itanura, bigafasha kunoza uburyo bwo gukoresha wafer kuva kuri wafer kugeza kuri wafer.
SiC itanga kandi:
●Irwanya cyane imyuka ishingiye kuri chlorine na fluorine
●Imbaraga nyinshi za mekanike kurusha quartz
●Ubudahangarwa bwiza ku bushyuhe
●Ingaruka nke zo kwangirika mu gihe cy'igihe kirekire cyo gukora
Ibi biranga bituma imiyoboro ya SiC furnace ikwiriye cyane cyane ahantu hagezweho ho gutunganya ubushyuhe bwa semiconductor aho igihe kirekire cyo gukora no gusubiramo ibikorwa mu buryo buhoraho ari ingenzi cyane.
Imiterere n'imiterere y'imiyoboro ya SiC Diffusion
Imiyoboro myinshi ya semiconductor SiC diffusion ifite imiterere yihariye ya cylindrical yagenewe sisitemu zihagaze cyangwa zitambitse.
Bitandukanye n'imiyoboro isanzwe ya ceramic ikoreshwa mu nganda, imiyoboro ya SiC yo mu rwego rwa semiconductor ikenera ubushobozi bwo kuyikora buhanitse cyane kuko impinduka nto zishobora kugira ingaruka kuri ibi bikurikira:
●Igihe cyo gutura muri lisansi
●Gukwirakwiza ubushyuhe
●Intera hagati y'amacupa
●Uburyo bwo gutanga imyanya bungana
Ubwiza bw'imbere mu buso nabwo ni ingenzi cyane. Ubuso butoshye kandi bufite isuku nyinshi bufasha kugabanya:
●Gukora uduce duto
●Gutunganya ibisigazwa by'ibisigazwa
●Umwanda w'icyuma
Amwe mu macupa agezweho y’ifuru akoresha irangi rya CVD SiC kugira ngo yongere imbaraga zo kurwanya ingese no gusukura ubuso.
Ubugari bw'urukuta n'imiterere y'inyubako bigomba kandi kuringaniza imikorere myiza y'ubushyuhe n'ubudahangarwa bwa mekanike. Mu gihe cyo gutunganya imiyoboro ya semiconductor, imiyoboro y'itanura ishobora kugira ibihe amagana cyangwa ibihumbi by'ubushyuhe n'ubukonje mu gihe cyose ikora.
Uruhare rw'imiyoboro ya SiC Diffusion mu mikorere ya semiconductor
Mu nganda zikora ibikoresho bya semiconductor, umuyoboro wa SiC ukwirakwiza ibintu ukora ibirenze icyumba gifatika gusa. Ugira ingaruka zitaziguye ku buryo buhoraho bw'imikorere n'ubwiza bwa wafer.
Mu mikorere ya ogisijeni y'ubushyuhe, umuyoboro ufasha mu kubungabunga urujya n'uruza rw'umwuka wa ogisijeni n'ubushyuhe buhamye, ibyo bikaba ari ingenzi mu gukora filime za ogisijeni nziza.
Mu nzira zo gukwirakwiza, gazi igenda neza mu muyoboro wa SiC ishyigikira ikwirakwizwa ry’ibintu mu buryo buboneye rya fosifore cyangwa boron.
Ku bijyanye n'ikoreshwa rya LPCVD, nka polysilicon na silicon nitride deposition, ubwiyongere bw'ubushyuhe bwa SiC bufasha kunoza ingano y'ubugari bwa firime muri wafer batch.
Ibibazo Bikunze Kubaho ku Miyoboro ya SiC Diffusion
Nubwo SiC iramba neza, imiyoboro ikwirakwizwa iracyasaza igihe kirekire mu gihe cy’imikorere ya semiconductor.
Ikibazo kimwe gikunze kugaragara ni ukwanduza uduce duto duterwa no gusaza kw'ubuso cyangwa kwibumbira mu bisigazwa by'ibimera. Uko igihe kigenda gihita, kwibasirwa kenshi n'ibinyabutabire bishyuha cyane bishobora gutuma ubuso bw'imbere burushaho kwangirika, bigatuma ibyago byo kwandura birushaho kwiyongera.
Ubushyuhe bugabanuka ni ikindi kibazo. Guhindagurika kw'ubushyuhe cyangwa gushyiramo wafer mu buryo butari bumwe bishobora gutera ubushyuhe bukabije bushobora gutera uduce duto tw'ingufu cyangwa kwangirika kw'imiterere y'icyuma.
Isenyuka ry’ibinyabutabire rishobora no kubaho mu gihe cy’isuku ikoresheje halogen nyinshi. Guhura n’imyuka irimo fluorine igihe kirekire bishobora kwangiza buhoro buhoro ubuso bw’umuyoboro kandi bigatera ingaruka ku buryo ibintu bidahinduka.
Mu bidukikije by'umusaruro, ibi bibazo bishobora gutera:
●Ubushyuhe buhindagurika
●Filime idahuje
●Ubwinshi bw'ibice by'umubiri
●Kugabanuka kw'uburyo bwo gusubiramo ibintu
Kubera iyo mpamvu, abahanga mu by'imiti ikoreshwa mu gupima imikorere y'imiyoboro y'itanura binyuze muri gahunda zisanzwe zo gusuzuma no kubungabunga.
Kubungabunga no Gucunga Ubuzima Bwawe Bw'iteka
Kubungabunga neza ni ingenzi kugira ngo wongere igihe cyo gukoraImiyoboro ya SiC yo mu itanurano kubungabunga imikorere ihamye y’imikorere ya semiconductor.
Ibyinshi mu bikoresho bikoresha inzira z'igenzura ziteganyijwe zirimo:
●Gusuzuma ubuso bw'ishusho
●Gukurikirana uko uduce dukurikirana ibintu
●Isuzumabumenyi ry'ibikoresho byo mu itanura
●Igenzura ry'ubushyuhe bungana
Uburyo bwo gusukura bushobora kuba burimo gusukura imiti ikoreshwa mu gukaraba cyangwa guteka mu bushyuhe bwinshi kugira ngo haveho ibisigazwa by’ibicuruzwa.
Mu gukora semiconductor nyinshi, gusimbuza imiyoboro ya diffusion akenshi bishingiye kuri:
●Amasaha y'ibikorwa
●Imibare y'izunguruka ry'ubushyuhe
●Imikorere y'uduce duto
●Ibisabwa ntarengwa
Aho gutegereza ko byangirika bigaragara, fabs zisimbura imiyoboro y'itanura mbere y'uko inzira yo guhindagurika igira ingaruka ku musaruro wa wafer.
Uko ikoranabuhanga rya semiconductor rigenda ritera imbere rigana ku nsinga nto z’imikorere no ku ikoreshwa ry’ubushyuhe risaba imbaraga nyinshi, ni ko akamaro ko kwizerwaimiyoboro yo gukwirakwiza karubide ya silikonizizakomeza gukura. Ubushobozi bwazo bwo gushyigikira uburyo buhamye bwo gutunganya ubushyuhe, kwandura gake, no kuba zikora neza mu itanura igihe kirekire bituma ziba ingenzi mu bikoresho bigezweho byo gukora ibikoresho bya semiconductor.
Igihe cyo kohereza: Gicurasi-08-2026