Patent ID: 8297991
Filing Date: 2012-10-30
Classification: G03B,G03F,G09G,H01L

Abstract:
1. A method of manufacturing a semiconductor device comprising steps of: forming a gate electrode over a front side of a substrate; forming a semiconductor film over the gate electrode with a gate insulating film interposed therebetween; forming a photosensitive film having first and second portions over the semiconductor film, the second portion of the photosensitive film being over the gate electrode; providing a reflecting plate over the photosensitive film; and irradiating the first portion of the photosensitive film from a back side of the substrate with a light and a part of the second portion of the photosensitive film from the front side of the substrate by the reflecting plate with the light to form a pattern in the second portion of the photosensitive film, wherein a width of the pattern is controlled by a distance between the photosensitive film and the reflecting plate.