UKO WAKORA IKININI CYA SILICON
A agace gatoni agace ka silikoni gafite ubugari bwa milimetero imwe gafite ubuso burambuye cyane bitewe n'uburyo busaba imbaraga nyinshi mu by'ikoranabuhanga. Gukoresha nyuma bizagena uburyo bwo guhinga kristu bugomba gukoreshwa. Urugero, muri gahunda ya Czochralski, silikoni ya polycrystalline irashongeshwa hanyuma kristu y'imbuto ntoya cyane ishyirwa muri silikoni yashongeshejwe. kristu y'imbuto irazunguruka hanyuma ikazamuka buhoro buhoro. Ibara riremereye cyane, monocrystal, riravamo. Birashoboka guhitamo imiterere y'amashanyarazi ya monocrystal wongeyeho uduce duto tw'udupira twinshi. kristu zishyirwamo kristu hakurikijwe amabwiriza y'umukiriya hanyuma zigasenywa mo uduce. Nyuma y'intambwe zitandukanye zo gukora, umukiriya ahabwa wafers ze zagenwe mu ipaki yihariye, bituma umukiriya ashobora gukoresha wafer ako kanya mu murongo wayo wo kuyikora.
INTANGIRIRO YA CZOCHRALSKI
Muri iki gihe, igice kinini cya monocrystals za silikoni gihingwa hakurikijwe inzira ya Czochralski, ikubiyemo gushongesha siliconi ya polycrystalline ifite pure nyinshi mu cyuma cya quartz gikozwe mu buryo bwa hyperpure hanyuma hongerwamo dopant (ubusanzwe B, P, As, Sb). Imbuto ya monocrystals yoroheje, ishyirwa muri siliconi ishongeshejwe. Imbuto ya CZ nini iva muri iyi kristu nto. Gutunganya neza ubushyuhe n'amazi bya silikoni ishongeshejwe, kuzenguruka kwa kristu na kristu, ndetse no kwihuta gukurura kristu bitanga ingot ya monocrystals nziza cyane.
UBURYO BWO GUHINDURA AKARERE K'IBIHUGU
Monocrystals zikorwa hakurikijwe uburyo bwa float zone ni nziza cyane gukoreshwa mu bice bya semiconductor by'imbaraga, nka IGBTs. Ingot ya silicon ya polycrystalline cylindrical ishyirwa hejuru ya induction coil. Umurima wa electromagnetic wa radio frequency ufasha gushonga silicon yo hasi y'inkoni. Umurima wa electromagnetic ugenzura urujya n'uruza rwa silicon unyuze mu mwobo muto uri muri induction coil no ku mubumbe wa monocrystal uri hepfo (uburyo bwa float zone). Doping, akenshi irimo B cyangwa P, igerwaho no kongeramo ibintu birimo umwuka.
Igihe cyo kohereza: Kamena-07-2021