Kukula kwa makristasi apawiri a semiconductor
Compound semiconductor imadziwika kuti m'badwo wachiwiri wa zida za semiconductor, poyerekeza ndi m'badwo woyamba wa zida za semiconductor, zokhala ndi kusintha kwa kuwala, kuchuluka kwa ma elekitironi akuchulukirachulukira komanso kukana kutentha kwambiri, kukana kwa radiation ndi mawonekedwe ena, kuthamanga kwambiri, kopitilira muyeso. pafupipafupi, mphamvu zochepa, phokoso lochepa masauzande ambiri ndi mabwalo, makamaka zipangizo za optoelectronic ndi photoelectric yosungirako zili ndi ubwino wapadera, woimira kwambiri omwe ndi GaAs ndi InP.
Kukula kwa makristasi amodzi a semiconductor (monga ma GaAs, InP, ndi zina zotero) kumafuna malo okhwima kwambiri, kuphatikiza kutentha, kuyera kwazinthu zopangira komanso kuyera kwa chotengera.PBN pakali pano ndi chotengera choyenera cha kukula kwa makristasi a semiconductor single.Pakali pano, pawiri semiconductor single galasi kukula njira makamaka monga madzi chisindikizo mwachindunji kukoka njira (LEC) ndi ofukula gradient solidification njira (VGF), lolingana Boyu VGF ndi LEC mndandanda crucible mankhwala.
Pogwiritsa ntchito kaphatikizidwe ka polycrystalline, chidebe chomwe chimagwiritsidwa ntchito kunyamula elemental gallium chiyenera kukhala chopanda mapindikidwe ndi kusweka pa kutentha kwakukulu, zomwe zimafuna kuyeretsa kwakukulu kwa chidebecho, osayambitsa zonyansa, komanso moyo wautali wautumiki.PBN imatha kukwaniritsa zofunikira zonse pamwambapa ndipo ndi chotengera chabwino chotengera kaphatikizidwe ka polycrystalline.Boyu PBN boti mndandanda wakhala chimagwiritsidwa ntchito ukadaulo uwu.
