Patent ID: 6452091
Filing Date: 2002-09-17
Classification: H01L,Y10T

Abstract:
A method of producing a thin-film single-crystal device by utilizing a thin-film single-crystal, which comprises the steps of:forming a peeling layer and a thin-film single-crystal on a surface of a substrate in this order; bonding a flexible sheet member to a surface of the thin-film single-crystal or to a surface of a layer additionally formed on the surface of the thin-film single-crystal; and peeling the thin-film single-crystal together with the sheet member from the substrate by applying force to the sheet member so as to curve the sheet member, wherein in the peeling step, the peeling of the thin-film single-crystal is carried out in such a manner that directions of all straight lines made on a surface of the thin film by appearance of planes in which the thin-film single-crystal is most apt to cleave are different from a direction of a front line of a peeled portion.