Molecular beam epitaxy, ko MBE, wata sabuwar dabara ce don haɓaka ingantattun fina-finai na bakin ciki na lu'ulu'u akan abubuwan da ake amfani da su na crystal. A matsananci-high injin yanayi, ta dumama murhu sanye take da kowane irin da ake bukata aka gyara da kuma samar da tururi, ta ramukan kafa bayan collimating katako atomic ko kwayoyin katako, kai tsaye allura zuwa dace zafin jiki na guda crystal substrate, sarrafa kwayoyin katako zuwa ga. da substrate scanning a lokaci guda, zai iya yin kwayoyin ko atom a cikin crystal jeri yadudduka ya samar da wani bakin ciki fim a kan wani substrate "girma".

Don aikin yau da kullun na kayan aikin MBE, ana buƙatar babban tsabta, ƙarancin matsa lamba da ruwa mai tsaftataccen ruwa mai tsafta da ake buƙata don ci gaba da kai tsaye zuwa ɗakin sanyaya na kayan aiki. Gabaɗaya, tankin da ke samar da nitrogen mai ruwa yana da ƙarfin fitarwa tsakanin 0.3MPa da 0.8MPa. Liquid nitrogen a -196 ℃ yana da sauƙin vaporized cikin nitrogen yayin jigilar bututun. Da zarar ruwan nitrogen mai ruwan gas-ruwa na kusan 1:700 ya zama iskar gas a cikin bututun, zai mamaye sararin samaniya mai yawa na ruwa nitrogen kuma ya rage kwararar al'ada a ƙarshen bututun ruwa na nitrogen. Bugu da ƙari, a cikin tankin ajiyar ruwa na nitrogen, akwai yuwuwar samun tarkacen da ba a tsaftace ba. A cikin bututun ruwa na nitrogen, kasancewar iska mai datti kuma zai haifar da haɓakar ƙanƙara. Idan an fitar da waɗannan ƙazanta a cikin kayan aikin, zai haifar da lahani marar tabbas ga kayan aikin.

Sabili da haka, ana jigilar ruwa na nitrogen a cikin tanki na waje zuwa kayan aikin MBE a cikin taron ba tare da ƙura ba tare da inganci mai kyau, kwanciyar hankali da tsabta, da ƙananan matsa lamba, babu nitrogen, babu ƙazanta, 24 hours ba tare da katsewa ba, irin wannan tsarin kula da sufuri shine. samfurin da ya dace.