Patent ID: 8455287
Filing Date: 2013-06-04
Classification: B81C,H01L

Abstract:
1. A method for manufacturing a semiconductor device comprising the steps of: forming a first sacrificial layer containing one selected from the group consisting of silicon oxide, silicon nitride, a metal element, and a metal compound over a first substrate; forming a layer containing polycrystalline silicon crystallized by using a metal over the first sacrificial layer; forming a second sacrificial layer containing one selected from the group consisting of silicon, a compound of silicon, a metal element, and a metal compound over the layer containing polycrystalline silicon; forming a first insulating layer over the second sacrificial layer; forming a microstructure comprising the layer containing polycrystalline silicon and the first insulating layer by removing a portion or a whole of the first sacrificial layer and the second sacrificial layer by etching; forming an interlayer insulating layer over the microstructure; forming a connection conductive layer over the interlayer insulating layer, wherein the connection conductive layer is electrically connected to the microstructure; and separating the microstructure from the first substrate.