Patent ID: 7422956
Filing Date: 2008-09-09
Classification: H01L

Abstract:
1. A method of forming a semiconductor device comprising: providing a silicon-on-insulator structure comprising a first silicon substrate having a first crystal plane with a first insulating layer formed thereon and a first silicon layer having a second crystal plane and a crystal orientation overlying said first insulating layer; providing a second silicon substrate having the second crystal plane and a crystal orientation and a second insulating layer formed on said second substrate, wherein said second silicon substrate comprises a line of defects created by implanting hydrogen ions into said second silicon substrate; bonding said second silicon substrate to said silicon-on-insulator structure through said second insulating layer and said first silicon layer, such that the crystal orientation of the second silicon substrate is substantially orthogonal to the crystal orientation of the first silicon layer; and splitting and removing the second silicon substrate along the line of defects leaving behind the second insulating layer and a second silicon layer on the silicon-on-insulator structure.