Patent ID: 7655566

Claim:
A method for manufacturing a semiconductor device, comprising the steps of: forming a first conductive layer over a substrate having a light transmitting property; forming an insulating layer over the first conductive layer; forming a photocatalyst material over the insulating layer; immersing the photocatalyst material in a solution containing a plating catalyst material and exposing a first part and a second part of the photocatalyst material to light transmitted through the substrate in the solution containing the plating catalyst material with the use of the first conductive layer as a mask to deposit the plating catalyst material onto the part of the photocatalyst material; immersing the plating catalyst material in a plating solution containing a metal material to form a second conductive layer and a third conductive layer over the first part and the second part of the photocatalyst material, respectively; and forming a semiconductor layer over the second conductive layer and the third conductive layer.