Patent ID: 9048111
Filing Date: 2015-06-02
Classification: H01L

Abstract:
1. A semiconductor device comprising: a substrate; a buried insulating film formed on said substrate; an SOI layer formed on said buried insulating film; an insulating film formed to extend from a top surface of said SOI layer to said buried insulating film and to divide said SOI layer into a first SOI layer and a second SOI layer isolated from said first SOI layer; an element formed in said first SOI layer; and an electrode having at one end thereof a pad located directly above said second SOI layer, the other end of said electrode being connected to said first SOI layer; wherein a cavity region is formed between said buried insulating film and said substrate directly below said first SOI layer; and wherein the portion of said buried insulating film directly below said second SOI layer is at least partially in direct contact with said substrate.