XOV XWM - Lub nti Mbe Project ua tiav rau xyoo dhau los

Tej txuj ci tshiab

Molecular nqaj xaiv, lossis MBE, yog tus txheej txheem tshiab rau kev loj hlob zoo nyias cov muaju ntawm crystal substrates. Nyob rau hauv ultra-siab lub tshuab nqus cua sov yog nruab nrog txhua yam uas tsim nyog tom qab kev tsim nyog rau qhov tsim nyog aficed afeded tom qab kev siv lead ua ib leeg crystal substrate, tswj cov nqaj molecular Lub substrate scanning tib lub sijhawm, nws tuaj yeem ua cov lwg me me lossis cov atoms hauv cov txheej txheem sib dhos los ua cov yeeb yaj kiab nyias nyias ntawm kev loj hlob ntawm substrate ".

Rau kev ua haujlwm ib txwm ntawm MBE cov cuab yeej siv, siab heev, tsis tshua muaj siab thiab ultra-huv si ua kua nitrogen yog yuav tsum tau mus thauj tsis tu ncua thiab stably thauj mus rau lub txias chamber ntawm cov khoom. Nyob rau hauv dav dav, lub tank uas muab cov kua nitrogen muaj kev tawm ntawm 0.3mpa thiab 0.8mpa.liquid nitrogen ntawm nitrogen tau yooj yim rau hauv nitrogen tau yooj yim rau hauv Nitrogen thaum lub sijhawm thauj mus los. Thaum cov kua nitrogen nrog cov roj-kua piv ntawm txog 1: 700 yog cov roj av nyob hauv cov dej ntws thiab txo qhov ntws tawm ntawm qhov kawg ntawm cov raj dej nitrogen. Ib qho ntxiv, hauv cov kua nitrogen cia tank, muaj feem yuav yog cov khib nyiab uas tsis tau ntxuav. Nyob rau hauv cov kua nitrogen raj, lub neej ntawm cov huab cua ntub yuav ua rau lub cim ntawm cov dej khov. Yog tias cov impurities no raug rho tawm rau hauv cov khoom siv, nws yuav ua rau muaj kev puas tsuaj rau cov khoom siv.

Yog li ntawd, cov kua nitrogen nyob sab nraum zoov lub tank nres tsheb yog thauj mus rau lub pob zeb MBE nrog High Eclity, tsis muaj kev cuam tshuam, kev thauj mus los tsis muaj kev thauj mus los cov khoom tsim nyog.

Txuam MBE cov khoom siv

Txij li xyoo 2005, hl cryogenic khoom (HLL Cryo) tau ua kom zoo thiab txhim kho cov kab ke no thiab kev sib koom tes nrog International MBE cov cuab yeej siv hluav taws xob. MBe cov khoom siv manufacturers, xws li DCA, XAB, muaj kev sib koom tes nrog peb lub tuam txhab. MBe cov khoom siv manufacturers, suav nrog DCA thiab Rurber, tau koom tes nrog ntau cov haujlwm.

Riber SA yog ib tug thawj coj thoob ntiaj teb ntawm molecular nqaj epitaxy (MBE) cov khoom lag luam thiab cov kev pabcuam ntsig txog kev tshawb fawb thiab cov ntawv thov kev lag luam. Lub Riber MBE Ntaus tuaj yeem tso nyiaj nyias nyias ntawm cov khoom ntawm cov txheej txheem ntawm cov substrate, nrog kev tswj hwm heev. Cov khoom siv nqus plua plav ntawm hnryogenic khoom (hL cryo) yog nruab nrog cov khoom siv loj tshaj plaws yog cov khoom siv zoo thiab tau raug lees paub los ntawm cov neeg siv khoom.

DCA yog lub ntiaj teb ua oxide mbide. Txij xyoo 1993, kev txhim kho cov kev txawj 100idation, antioxidant substrate cua sov thiab antioxidant chaw tau ua tiav. Vim li no, ntau tus thawj coj ua lag luam tau xaiv dCA oxide tshuab. Composite semiconductor MBE lub nruab nrog siv thoob ntiaj teb. VJ Kua Nitrogen Campulating System ntawm HL Cryogenic Khoom (xws li Metor P600, R450, SGC800 thiab lwm yam.