Chithunzi cha SILICON WAFER

Chithunzi cha SILICON WAFER

kuchokera ku sitronic

Amtandandi kagawo ka silicon wokhuthala pafupifupi 1 millimeter komwe kumakhala kosalala kwambiri chifukwa cha njira zomwe zimafunikira kwambiri mwaukadaulo. Kugwiritsiridwa ntchito kotsatira kumatsimikizira njira yolima kristalo yomwe iyenera kugwiritsidwa ntchito. Mu ndondomeko ya Czochralski, mwachitsanzo, silicon ya polycrystalline imasungunuka ndipo kristalo wonyezimira wa pensulo amalowetsedwa mu silicon yosungunuka. Krustalo la mbewu limazunguliridwa ndikukokera mmwamba pang'onopang'ono. Colossus yolemera kwambiri, monocrystal, zotsatira. Ndizotheka kusankha mawonekedwe amagetsi a monocrystal powonjezera mayunitsi ang'onoang'ono a dopants apamwamba kwambiri. Makhiristowo amapangidwa molingana ndi zomwe makasitomala amafuna kenako amapukutidwa ndikudulidwa mu magawo. Pambuyo pazowonjezera zingapo zowonjezera, kasitomala amalandira zowotcha zake zomwe zafotokozedwa m'mapaketi apadera, omwe amalola kasitomala kugwiritsa ntchitomtandanthawi yomweyo mumzere wake wopanga.

Masiku ano, gawo lalikulu la silicon monocrystals limakula molingana ndi ndondomeko ya Czochralski, yomwe imaphatikizapo kusungunula silicon ya polycrystalline yoyera kwambiri mu hyperpure quartz crucible ndikuwonjezera dopant (kawirikawiri B, P, As, Sb). Mbeu yopyapyala, ya monocrystalline yoviikidwa mu silicon yosungunuka. Krustalo wamkulu wa CZ ndiye amapangidwa kuchokera ku kristalo wopyapyala uyu. Kuwongolera molondola kwa kutentha kwa silicon yosungunuka ndi kuyenda, kusinthasintha kwa kristalo ndi crucible, komanso kuthamanga kwa kristalo kumapangitsa kuti ikhale yopambana kwambiri ya monocrystalline silicon ingot.