Patent ID: 6190937
Filing Date: 2001-02-20
Classification: C30B,H01L,Y02E,Y02P,Y10S

Abstract:
A method of producing a semiconductor member, the method comprising the steps of:(a) forming a porous layer in a surface region of a first crystalline substrate;(b) growing a first thin-film semiconductor layer on a surface of the porous layer in vapor phase by decomposing a source gas;(c) immersing the first thin-film semiconductor layer into a melting solution in which elements for forming a second thin-film semiconductor are dissolved up to a saturated state or a supersaturated state under a reducing atmosphere to grow a second thin-film semiconductor layer of a conductive type different from that of the first thin-film semiconductor layer on a surface of the first thin-film semiconductor layer in liquid phase;(d) bonding a second substrate onto a surface of the second thin-film semiconductor layer or onto a surface of a layer further formed on the second thin-film semiconductor layer;(e) separating the first thin-film semiconductor layer from the first substrate by exerting a force on the porous layer to transfer the first thin-film semiconductor layer to the second substrate.