CHIKWANGWANI CHA SILICON

CHIKWANGWANI CHA SILICON

kuchokera ku sitronic

Achikwama cha mkatendi chidutswa cha silicon chokwana pafupifupi milimita imodzi chomwe chili ndi malo osalala kwambiri chifukwa cha njira zomwe zimakhala zovuta kwambiri paukadaulo. Kugwiritsa ntchito pambuyo pake kumatsimikiza njira yolima makristalo yomwe iyenera kugwiritsidwa ntchito. Mwachitsanzo, mu njira ya Czochralski, silicon ya polycrystalline imasungunuka ndipo kristalo woonda ngati pensulo amaviikidwa mu silicon yosungunuka. Kenako kristalo wa mbewuyo amazunguliridwa ndikukokedwa pang'onopang'ono mmwamba. Colossus wolemera kwambiri, monocrystal, imachitika. N'zotheka kusankha mawonekedwe amagetsi a monocrystal powonjezera mayunitsi ang'onoang'ono a zinthu zoyera kwambiri. Makristalowo amapakidwa motsatira zomwe kasitomala akufuna kenako nkuwapukuta ndikudula mzidutswa. Pambuyo pa njira zina zowonjezera zopangira, kasitomala amalandira ma wafer ake omwe adasankhidwa mu phukusi lapadera, zomwe zimathandiza kasitomala kugwiritsa ntchitochikwama cha mkatenthawi yomweyo mu mzere wake wopanga.

Masiku ano, gawo lalikulu la ma silicon monocrystals amalimidwa motsatira njira ya Czochralski, yomwe imaphatikizapo kusungunula polycrystalline high-purity silicon mu quartz crucible yoyera kwambiri ndikuwonjezera dopant (nthawi zambiri B, P, As, Sb). Kristalo woonda, monocrystalline mbewu amaviika mu silicon yosungunuka. Kristalo wamkulu wa CZ kenako amapangidwa kuchokera ku kristalo woonda uyu. Kuwongolera bwino kutentha ndi kuyenda kwa silicon yosungunuka, kuzungulira kwa kristalo ndi crucible, komanso liwiro lokoka kristalo kumapangitsa kuti monocrystalline silicon ingot ikhale yabwino kwambiri.