Patent ID: 7795734
Filing Date: 2010-09-14
Classification: H01L

Abstract:
1. A semiconductor device comprising: a crystalline semiconductor island on an insulating surface, the crystalline semiconductor island including a pair of impurity regions and at least first and second portions extending in parallel with each other between the pair of impurity regions wherein each of the first and second portions includes a channel formation region; a gate insulating film formed on the first and second portions; a gate electrode formed over the first and second portions with the gate insulating film interposed, therebetween; and a second insulating film formed on the insulating surface, the second insulating film including an opening where the crystalline semiconductor island is disposed, wherein the gate insulating film contacts a top surface and side surfaces of each of the first and second portions of the crystalline semiconductor island and the gate electrode is formed adjacent to the top surface and side surfaces of each of the first and second portions of the crystalline semiconductor island with the gate insulating film interposed therebetween, and wherein each of the first and second portions includes at least one crystal which extends along a channel length direction of each of the first and second portions.