Isishwankathelo se-Molecular Beam Epitaxy (MBE)
Itekhnoloji yeMolecular Beam Epitaxy (MBE) yaphuhliswa ngeminyaka yoo-1950 ukulungiselela izixhobo zefilimu ezincinci ze-semiconductor kusetyenziswa itekhnoloji ye-vacuum evaporation. Ngophuhliso lwetekhnoloji ye-vacuum ephezulu kakhulu, ukusetyenziswa kwetekhnoloji kuye kwandiswa kwicandelo lesayensi ye-semiconductor.
Isizathu sophando lwezixhobo ze-semiconductor yimfuno yezixhobo ezintsha, ezinokuphucula ukusebenza kwenkqubo. Ngokunjalo, ubuchwepheshe obutsha bezinto bunokuvelisa izixhobo ezintsha kunye neteknoloji entsha. I-Molecular beam epitaxy (MBE) yiteknoloji ye-vacuum ephezulu yokukhula komaleko we-epitaxial (ngesiqhelo i-semiconductor). Isebenzisa umqadi wobushushu wee-athomu zomthombo okanye iimolekyuli ezichaphazela i-single crystal substrate. Iimpawu ze-vacuum eziphezulu kakhulu zenkqubo zivumela i-in-situ metallization kunye nokukhula kwezinto zokukhusela kwiindawo ze-semiconductor ezisandula ukukhula, nto leyo ekhokelela kwi-interfaces ezingenangcoliseko.
Itekhnoloji ye-MBE
I-epitaxy ye-molecular beam yenziwe kwi-vacuum ephezulu okanye kwi-vacuum ephezulu kakhulu (1 x 10-8Imeko-bume yePa). Eyona nto ibalulekileyo kwi-molecular beam epitaxy lizinga layo eliphantsi lokufaka, elihlala livumela ifilimu ukuba ikhule ngesantya esingaphantsi kwe-3000 nm ngeyure. Izinga eliphantsi lokufaka lifuna i-vacuum ephezulu ngokwaneleyo ukuze kufezekiswe inqanaba elifanayo lokucoceka njengezinye iindlela zokufaka.
Ukuze kuhlangatyezwane ne-vacuum ephezulu kakhulu echazwe apha ngasentla, isixhobo se-MBE （Knudsen cell） sinomgangatho wokupholisa, kwaye indawo ye-vacuum ephezulu kakhulu kwigumbi lokukhula kufuneka igcinwe kusetyenziswa inkqubo yokujikeleza kwe-nitrogen engamanzi. I-nitrogen engamanzi ipholisa ubushushu bangaphakathi besixhobo ukuya kwi-77 Kelvin (−196 °C). Indawo yeqondo lobushushu eliphantsi inokunciphisa ngakumbi umxholo wokungcola kwi-vacuum kwaye ibonelele ngeemeko ezingcono zokubekwa kweefilimu ezincinci. Ke ngoko, inkqubo yokujikeleza ye-nitrogen engamanzi ezinikeleyo iyafuneka ukuze izixhobo ze-MBE zibonelele ngokubonelela rhoqo nangokuzinzileyo kwe-nitrogen engamanzi ye--196 °C.
Inkqubo yoKujikeleza iNitrogen yoLwalo
Inkqubo yokujikeleza komoya we-vacuum liquid nitrogen ibandakanya ikakhulu,
● itanki ye-cryogenic
● umbhobho ophambili kunye nowesebe onombhobho ...
● Isahluli sesigaba esikhethekileyo se-MBE kunye nombhobho wokukhupha umoya onejakethi ye-vacuum
● iivalvu ezahlukeneyo ezinejakethi ye-vacuum
● isithintelo segesi-ulwelo
● isihluzi esinejakethi yokucoca
● inkqubo yokupompoza i-vacuum enamandla
● Ukupholisa nokucoca inkqubo yokufudumeza
Inkampani ye-HL Cryogenic Equipment iqaphele imfuno yenkqubo yokupholisa i-MBE liquid nitrogen, yacwangcisa umqolo wobugcisa ukuze iphuhlise ngempumelelo inkqubo ekhethekileyo ye-MBE liquid nitrogen cooing yetekhnoloji ye-MBE kunye neseti epheleleyo ye-vacuum insulat.edinkqubo yemibhobho, esetyenziswa kumashishini amaninzi, iiyunivesithi kunye namaziko ophando.
Izixhobo ze-HL Cryogenic
I-HL Cryogenic Equipment eyasekwa ngo-1992 luphawu oludityaniswe neChengdu Holy Cryogenic Equipment Company eTshayina. I-HL Cryogenic Equipment izibophelele kuyilo nasekwenziweni kweHigh Vacuum Insulated Cryogenic Piping System kunye nezixhobo zenkxaso ezinxulumene noko.
Ukuze ufumane ulwazi oluthe kratya, nceda undwendwele iwebhusayithi esemthethweniwww.hlcryo.com, okanye uthumele i-imeyile kuinfo@cdholy.com.
Ixesha lokuthumela: Meyi-06-2021
