Chophimba Cholimba cha Graphite Choyera Kwambiri

VET Energy imadziwika bwino popanga zinthu zapamwamba kwambiriChophimba Choyera Kwambiri Chopanda GraphiteZopangidwa kuti zigwiritsidwe ntchito pazinthu zofunikira kwambiri monga semiconductor ndi zipangizo zapamwamba. Zopangidwa kuchokera ku graphite yaing'ono kwambiri ya isostatic grain ndikuyeretsedwa kudzera mu njira zoyeretsera halogen yotentha kwambiri, ma crucible athu a graphite amapereka kukhazikika kwa kutentha kwapadera, kuchuluka kochepa kwa kuipitsidwa, komanso kusinthasintha kwakukulu pakugwira ntchito mopitirira muyeso.

Amagwiritsidwa ntchito kwambiri pakukula kwa makristalo a SiC, kupanga makristalo a GaN, kupanga zinthu za epitaxial, ndi ukadaulo wapamwamba wa sintering wa ceramic, High-PurityChophimba cha Graphite ChosasinthikaZimagwira ntchito yofunika kwambiri pakuwonetsetsa kuti makristalo ndi abwino, kukhazikika kwa njira, komanso kugwira ntchito bwino popanga zinthu zamakono.

Kodi Chophimba Choyera Kwambiri Chopanda Kuyera cha Graphite ndi Chiyani?

Chotsukira cha Graphite Choyera Kwambiri ndi chidebe chopangidwa mwaluso kwambiri chopangidwa kuchokera ku zinthu za graphite za isotropic zomwe zimapangidwa kudzera mu njira yokanikiza ya isostatic. Poyerekeza ndi zinthu zachikhalidwe za graphite, graphite ya isostatic imapereka:

● Kapangidwe kakang'ono kamene kali kofanana mbali zonse

● Kuchuluka kwamphamvu ndi mphamvu ya makina

● Kutentha kwapamwamba kwambiri

● Kukana kutentha kwambiri

● Kuchepa kwa ma porosity

● Kuchuluka kwa zinthu zodetsa kwambiri

Pambuyo poyeretsa, kuchuluka kwa phulusa nthawi zambiri kumatha kuchepetsedwa ndi 5 ppm, ndipo zinthu zina zomwe zili mu semiconductor grade zimakhala ndi milingo yochepera 3 ppm.

Makhalidwe amenewa amapangitsa kuti High-Purity Isostatic Graphite Crucibles ikhale yabwino kwambiri pa kutentha kwambiri kopitirira 2,000°C, komwe kuwongolera kuipitsidwa ndi kutentha kofanana ndikofunikira.

Maudindo mu Kupanga Semiconductor

Mu kukula kwa makristalo a Silicon Carbide (SiC) pogwiritsa ntchito njira ya Physical Npor Transport (PVT), ma graphite crucibles amagwira ntchito ngati chotengera chosungiramo zinthu zomwe zimachokera komanso gawo lofunikira la dongosolo la kutentha. Pogwira ntchito kutentha kopitilira 2,200°C, crucible iyenera kukhala yokhazikika muyeso pomwe ikuthandizira kutentha koyenera komwe kumafunikira kuti nthunzi iyendetse komanso kuti makristalo apangidwe. Kuyera ndi kapangidwe ka isotropic ka graphite kumakhudza mwachindunji kuyika kwa chidetso, kufalikira kwa kutentha, kuchuluka kwa kukula kwa makristalo, komanso kupanga zolakwika.

Ntchito ya High-Purity Isostatic Graphite Crucibles imapitirira kupanga SiC mpaka ukadaulo wapamwamba wa Gallium Nitride (GaN) crystal growth. Kaya imagwiritsidwa ntchito mu HVPE, flux growth, kapena njira zatsopano zopangira ma crystal ambiri, ma graphite crucibles amapereka malo okhazikika otentha omwe amathandizira kunyamula zinthu ndi kupanga ma crystal pomwe akuchepetsa zoopsa za kuipitsidwa.

Mu kupanga zinthu za epitaxial za semiconductor, kuphatikizapo SiC epitaxy, AlN crystal growth, ndi advanced compound semiconductor processing, graphite crucibles zimathandiza kuti kutentha kufanane komanso kubwerezabwereza kwa njira. Kutentha kwawo kwabwino kwambiri komanso kukana kutentha kumathandiza kuti ntchito ikhale yokhazikika pansi pa zochitika zoopsa kwambiri, kuthandizira kuwongolera molondola kwa evaporation, sublimation, ndi njira zoyikamo.

Ma Crucible a High-Purity Isostatic Graphite nawonso amagwira ntchito yofunika kwambiri popanga zipangizo zapamwamba za ceramic ndi ufa wa semiconductor wa m'badwo wachitatu. Panthawi yowotcha silicon carbide, aluminium nitride, boron nitride, ndi ma ceramic ena ogwira ntchito kwambiri, crucible imapereka malo okhazikika komanso ofanana ndi kutentha omwe amalimbikitsa kuchulukana kwa zinthu pomwe akuchepetsa kuipitsidwa. Kusintha komwe kumachitika chifukwa cha kuyera kwa zinthu, kutentha koyendetsedwa, komanso magwiridwe antchito a makina ndikofunikira kwambiri pakugwiritsa ntchito kuyambira zida za semiconductor mpaka kuyika kwamagetsi kwamphamvu kwambiri.

Zochitika Zamakampani ndi Chitukuko Chamtsogolo

Pamene ma semiconductors amagetsi amphamvu akupitiliza kusintha makampani opanga zamagetsi, kufunikira kwa ma graphite crucibles apamwamba kukuwonjezeka mofulumira.

Zofunikira pa Ukhondo Wapamwamba Kwambiri

Kugwiritsa ntchito ma semiconductor mtsogolo kumafuna kuchuluka kwa zinthu zosayera pansi pa 5 ppm ndipo, nthawi zina, kuyandikira 1 ppm kuti zithandizire kukula kwakukulu kwa makristalo ndi kuchuluka kochepa kwa zolakwika.

Ukadaulo Wopaka

Zophimba zapamwamba pamwamba zimagwiritsidwa ntchito kwambiri pa zophimba za graphite, kuphatikizapo:

● Chophimba cha Silicon Carbide (SiC)

● Chophimba cha Tantalum Carbide (TaC)

● Chophimba cha Pyrolytic Carbon (PyC)

Zophimba izi zimawonjezera:

● Kukana dzimbiri

● Kukhazikika kwa kutentha

● Kuchita bwino kwa moyo wonse

● Ukhondo wa njira

● Mapangidwe Akuluakulu a Crucible

Kutsatsa malonda kwa:

● Ma wafer a SiC a mainchesi 8

● Ma substrates akuluakulu a GaN

● Zipangizo zamakono zamagetsi zamagetsi

ikutsogolera kupanga ma graphite akuluakulu komanso okhazikika omwe amatha kusunga mphamvu yowongolera kutentha nthawi yayitali.