Isifinyezo se-Molecular Beam Epitaxy (MBE)
Ubuchwepheshe be-Molecular Beam Epitaxy (MBE) basungulwa ngawo-1950 ukuze kulungiswe izinto zefilimu encane ye-semiconductor kusetshenziswa ubuchwepheshe bokuhwamuka kwe-vacuum. Ngokuthuthuka kobuchwepheshe be-vacuum obuphezulu kakhulu, ukusetshenziswa kobuchwepheshe kuye kwandiselwa emkhakheni wesayensi ye-semiconductor.
Isisusa socwaningo lwezinto ze-semiconductor yisidingo samadivayisi amasha, okungase kuthuthukise ukusebenza kohlelo. Ngokulandelayo, ubuchwepheshe bezinto ezintsha bungakhiqiza imishini emisha kanye nobuchwepheshe obusha. I-Molecular beam epitaxy (MBE) ubuchwepheshe be-vacuum obuphezulu bokukhula kwengqimba ye-epitaxial (ngokuvamile i-semiconductor). Isebenzisa umsebe wokushisa wama-athomu omthombo noma ama-molecule athinta i-single crystal substrate. Izici ze-vacuum eziphezulu kakhulu zenqubo zivumela i-in-situ metallization kanye nokukhula kwezinto zokuvikela ezindaweni ze-semiconductor ezisanda kukhula, okuholela ezinhlakeni ezingenangcoliso.
Ubuchwepheshe be-MBE
I-epitaxy ye-molecular beam yenziwa ku-vacuum ephezulu noma ku-vacuum ephezulu kakhulu (1 x 10).-8Imvelo ye-Pa). Isici esibaluleke kakhulu se-molecular beam epitaxy yisilinganiso sayo esiphansi sokufakwa, esivame ukuvumela ifilimu ukuthi ikhule ngesivinini esingaphansi kuka-3000 nm ngehora. Isilinganiso esiphansi kangaka sokufakwa sidinga i-vacuum ephezulu ngokwanele ukuze kufinyelelwe izinga elifanayo lokuhlanzeka njengezinye izindlela zokufakwa.
Ukuze kuhlangatshezwane ne-vacuum ephezulu kakhulu echazwe ngenhla, idivayisi ye-MBE （Knudsen cell）inesendlalelo sokupholisa, futhi indawo ye-vacuum ephezulu kakhulu yegumbi lokukhula kumele igcinwe kusetshenziswa uhlelo lokujikeleza kwe-nitrogen oluyi-liquid. I-nitrogen ewuketshezi ipholisa izinga lokushisa langaphakathi ledivayisi libe yi-77 Kelvin (−196 °C). Indawo ephansi yokushisa inganciphisa kakhulu okuqukethwe kokungcola ku-vacuum futhi inikeze izimo ezingcono zokubekwa kwamafilimu amancane. Ngakho-ke, uhlelo lokujikeleza lokupholisa lwe-nitrogen oluyi-liquid oluzinikele luyadingeka ukuze imishini ye-MBE inikeze ukuhlinzekwa okuqhubekayo nokuzinzile kwe-nitrogen ewuketshezi engu--196 °C.
Uhlelo Lokujikeleza Kokupholisa lwe-Nitrogen Ewuketshezi
Uhlelo lokujikeleza kokupholisa lwe-vacuum liquid nitrogen luhlanganisa kakhulu,
● ithangi elibangela ukucasuka
● ipayipi eliyinhloko nelibanzi elinejakethi le-vacuum / ipayipi elinejakethi le-vacuum
● Isihlukanisi sesigaba esikhethekile se-MBE kanye nepayipi lokukhipha umoya elinejakethi ye-vacuum
● ama-valve ahlukahlukene anejakethi ye-vacuum
● isithiyo segesi noketshezi
● isihlungi esinejakethi ye-vacuum
● uhlelo lokupompa olunamandla
● Ukupholisa nokuhlanza uhlelo lokuvuselela
Inkampani ye-HL Cryogenic Equipment iqaphele isidingo sohlelo lokupholisa lwe-MBE liquid nitrogen, yahlela umgogodla wezobuchwepheshe ukuze ithuthukise ngempumelelo uhlelo olukhethekile lwe-MBE liquid nitrogen cooing lobuchwepheshe be-MBE kanye nesethi ephelele ye-vacuum insulat.eduhlelo lwamapayipi, olusetshenziswe emabhizinisini amaningi, emanyuvesi nasezikhungweni zocwaningo.
Imishini ye-HL Cryogenic
I-HL Cryogenic Equipment eyasungulwa ngo-1992 iwuphawu oluhambisana neChengdu Holy Cryogenic Equipment Company eShayina. I-HL Cryogenic Equipment izibophezele ekwakhiweni nasekukhiqizweni kwe-High Vacuum Insulated Cryogenic Piping System kanye ne-Support Equipment ehlobene nayo.
Ukuze uthole ulwazi olwengeziwe, sicela uvakashele iwebhusayithi esemthethweniwww.hlcryo.com, noma uthumele i-imeyili ku-info@cdholy.com.
Isikhathi sokuthunyelwe: Meyi-06-2021
