Patent ID: 7564057
Filing Date: 2009-07-21
Classification: H01L

Abstract:
1. A semiconductor device comprising: a substrate having a front surface and a rear surface; a first insulating film comprising silicon oxide provided over said front surface of said substrate; a second insulating film comprising aluminum nitride and oxygen provided over said first insulating film; a third insulating film comprising oxide provided over said second insulating film; a transistor provided over said third insulating film, said transistor having at least a channel formation region, a source region, a drain region, a gate insulating film adjacent to said channel formation region, and a gate electrode adjacent to said channel formation region with said gate insulating film interposed therebetween; an interlayer insulating film comprising a leveled upper surface over said transistor; and a pixel electrode over said interlayer insulating film, wherein crystallinity of said source region or the drain region is higher than crystallinity of said channel region.