Patent ID: 7410882
Filing Date: 2008-08-12
Classification: H01L

Abstract:
1. A method of producing a thin film structure, comprising: providing a layered structure on a first substrate, the first substrate being transparent to photon irradiation, the layered structure comprising a first layer and a second layer, the second layer being substantially thicker than the first layer; providing a second substrate comprising a buffer layer and a sacrificial layer over the layered structure on a side opposite the first substrate; and separating the first substrate from the layered structure after the second substrate is attached; and removing the second layer after the first substrate is separated, wherein the first layer of the layered structure and the second substrate constitute the thin film structure; wherein separating the first substrate from the layered structure comprises separating the first substrate and the sacrificial layer from the buffer layer via laser irradiation, wherein the laser irradiation is shone through the first substrate and absorbed by the sacrificial layer.