Patent ID: 7479402
Filing Date: 2009-01-20
Classification: B81B,B81C

Abstract:
1. A method comprising: creating a complete tooth structure on a first wafer; bonding a second wafer to the tooth structure to create a comb structure; and releasing the comb structure, wherein creating includes: oxidizing a surface of the first wafer to create a first insulating layer; selectively removing portions of the first insulating layer using masking, photolithography, and etching; depositing a first device layer on the first insulating layer and first wafer using epitaxy; oxidizing a surface of the first device layer to create a second insulating layer; selectively removing portions of the second insulating layer using at least one of chemical and mechanical polishing; and selectively removing portions of the first device layer using masking, photolithography, and etching to form a first set of teeth being attached to a surface of the first wafer and to form a second set of teeth interspersed with the first set of teeth, the second set of teeth being attached to the first insulating layer between the second set of teeth and the surface of the first wafer.