Patent ID: 6335540
Filing Date: 2002-01-01
Classification: G02F,H01L

Abstract:
A semiconductor device comprising:a transparent substrate; a first layer formed over said transparent substrate, said first layer having at least a first portion and a second portion contiguous to said first portion; a second layer comprising silicon oxide formed on said first layer; a thin film transistor located over the first portion of said first layer, said thin film transistor including at least a semiconductor film comprising silicon, a gate insulating film adjacent to said semiconductor film and a gate electrode adjacent to said gate insulating film; a pixel electrode connected with said thin film transistor; a counter substrate having a counter electrode and an orientation control film formed thereon; and a liquid crystal layer interposed between said transparent substrate and said counter substrate, wherein said semiconductor film has at least a source region, a drain region and a channel region, wherein said first portion functions as a light shielding film to shield at least said channel region against light passing through said transparent substrate while said second portion is transparent, and wherein said first layer comprises a metal selected from the group consisting of Al, Ti, Mo, Ta and W.