Patent ID: 8026152
Filing Date: 2011-09-27
Classification: H01L,H03H

Abstract:
1. A method of manufacturing a semiconductor device comprising the steps of: forming a first metal film over a first substrate; forming a first silicon oxide film over the first metal film; forming a first functional circuit comprising a thin film transistor over the first silicon oxide film; forming a first metal oxide film between the first metal film and the first silicon oxide film by first heating; forming a first resin layer comprising a water soluble resin over the first functional circuit; bonding a third substrate to the first resin layer comprising the water soluble resin by using a first adhesive layer; separating the first functional circuit and the first silicon oxide film from the first substrate within the first metal oxide film, or at an interface between the first metal oxide film and the first silicon oxide film, or at an interface between the first metal oxide film and the first metal film; mounting the separated first functional circuit and the first silicon oxide film over a circuit board with a first adhesive agent; immersing the circuit board in water to remove the first resin layer comprising the water soluble resin; forming a second metal film over a second substrate; forming a second silicon oxide film over the second metal film; forming a second functional circuit comprising a passive element over the second silicon oxide film; forming a second metal oxide film between the second metal film and the second silicon oxide film by second heating; forming a second resin layer comprising a water soluble resin over the second functional circuit; bonding a fourth substrate to the second resin layer comprising the water soluble resin by using a second adhesive layer; separating the second functional circuit and the second silicon oxide film from the second substrate within the second metal oxide film, or at an interface between the second metal oxide film and the second silicon oxide film, or at an interface between the second metal oxide film and the second metal film; mounting the separated second functional circuit and the second silicon oxide film with a second adhesive agent over the circuit board, wherein the first functional circuit is mounted over the circuit board; and immersing the circuit board in water to remove the second resin layer comprising the water soluble resin.