Patent ID: 7883939
Filing Date: 2011-02-08
Classification: H01L

Abstract:
1. A method for manufacturing a semiconductor device, comprising the steps of: forming a first separation layer over a first substrate; forming a first semiconductor element layer over the first separation layer; irradiating the first semiconductor element layer and the first separation layer with a first laser beam, so that a part of the first semiconductor element layer and a part of the first separation layer are removed to form a first opening; forming a first wiring in the first opening, the first wiring being electrically connected to the first semiconductor element layer; forming a first protective material over the first semiconductor element layer; forming a first electrode in the first protective material, the first electrode being electrically connected to the first wiring; separating the first semiconductor element layer, over which the first protective material is formed, from the first substrate along the first separation layer; forming a second separation layer over a second substrate; forming a second semiconductor element layer over the second separation layer; irradiating the second semiconductor element layer and the second separation layer with a second laser beam, so that a part of the second semiconductor element layer and a part of the second separation layer are removed to form a second opening; forming a second wiring in the second opening, the second wiring being electrically connected to the second semiconductor element layer; forming a second protective material over the second semiconductor element layer; forming a second electrode in the second protective material, the second electrode being electrically connected to the second wiring; bonding the first semiconductor element layer to the second protective material over the second semiconductor element, thereby connecting the first wiring to the second electrode; and separating the second semiconductor element layer, over which the second protective material is formed, and the first semiconductor element layer, over which the first protective material is formed, from the second substrate along the second separation layer.