Inkomba ye-MOS: I-funnel ye-porcelain enepuleti eliyisicaba elinemimbobo yokuhlunga ngevakhiyumu nembiza enomkhono osohlangothini. Iphepha lokuhlunga elibekwe epuletini linamathela phansi kwevakhiyumu futhi lisheshise kakhulu ukuhlungwa kwamashwamba nemikhiqizo eyikristalu. I-porcelain emhlophe yenza kube lula ukubona umbala.