Otu esi eme Sịlicon wafer
A waferbụ iberibe silicon gbara ọkpụrụkpụ 1 millimita nke nwere elu dị larịị nke ukwuu n'ihi usoro na-achọsi ike nke ọma. Ojiji na-esote na-ekpebi usoro nke itolite kristal kwesịrị itinye n'ọrụ. N'ime usoro Czochralski, dịka ọmụmaatụ, a na-agbaze silicon polycrystalline na kristal mkpụrụ pensụl dị mkpa na-etinye n'ime silicon a wụrụ awụ. A na-atụgharị mkpụrụ kristal ma jiri nwayọọ nwayọọ na-ebuli elu. Colossus dị arọ nke ukwuu, monocrystal, na-arụpụta. Ọ ga-ekwe omume ịhọrọ njirimara eletriki monocrystal site na ịgbakwunye obere nkeji nke dopants dị ọcha. A na-edobe kristal dị ka nkọwa ndị ahịa si dị, wee na-egbuke egbuke ma bee n'ime mpekere. Mgbe usoro mmepụta ihe dị iche iche gbakwunyere, onye ahịa na-enweta wafers ya kpọmkwem na nkwakọ ngwaahịa pụrụ iche, nke na-enye ndị ahịa ohere iji wafer ozugbo na akara mmepụta ya.
Usoro CZOCHRALSKI
Taa, a na-etolite akụkụ buru ibu nke silicon monocrystals dị ka usoro Czochralski si dị, nke gụnyere ịgbaze silicon polycrystalline dị ọcha na hyperpure quartz crucible na-agbakwụnye dopant (na-emekarị B, P, As, Sb). A na-etinye mkpụrụ kristal dị gịrịgịrị, nke monocrystalline n'ime silicon a wụrụ awụ. Otu nnukwu kristal CZ wee malite site na kristal dị gịrịgịrị. Usoro ziri ezi nke okpomọkụ na mmiri silik a wụrụ awụ, kristal na ntughari ntughari, yana kristal na-adọkpụ ọsọ na-arụpụta silicon monocrystalline ingot dị oke elu.
Uzo esi ese n'elu mmiri
Monocrystals arụpụtara dị ka usoro mpaghara float siri dị dị mma maka iji na mpaghara semiconductor ike, dị ka IGBT. A na-ekwakwasị cylindrical polycrystalline silicon ingot n'elu eriri induction. Ebe ikuku elektrọnik ugboro redio na-enyere aka agbaze silicon si n'akụkụ ala nke mkpanaka ahụ. Ulo elektrọnik na-ahazi usoro silicon na-esi na obere oghere dị na eriri induction wee banye monocrystal nke dị n'okpuru (usoro mpaghara float). A na-enweta doping, nke na-enwekarị B ma ọ bụ P, site n'ịgbakwụnye gas.
Oge nzipu: Jun-07-2021