Patent ID: 6713235
Filing Date: 2004-03-30
Classification: B81C,H01L

Abstract:
A method for fabricating a thin-film substrate, wherein the thin-film substrate is fabricated on top of supports arrayed on a support base so as to be spaced away from the support base, said method comprising steps of:forming the supports of an electrically conductive material in a predetermined shape on the support base; forming a sacrifice layer made of a resin material on the support base; planarizing the sacrifice layer so as to expose top of the respective supports; forming the thin-film substrate of an insulating material containing tantalum oxide or silicon oxide as main constituent thereof on top of the sacrifice layer as planarized; and removing the sacrifice layer by plasma selective etching based on a reactive gas containing oxygen or oxygen atoms with a total pressure in a range of 100 Pa to 1500 Pa through intermediary of the thin-film substrate.