Patent ID: 6833195
Filing Date: 2004-12-21
Classification: H01L,Y10S,Y10T

Abstract:
A method of bonding germanium (Ge) onto a semiconductor wafer comprising:providing a Ge wafer having a cleaving plane defined by ion implantation and causing a surface activation on at least one surface of the Ge wafer; providing a semiconductor wafer and causing a surface activation on at least one surface of the semiconductor wafer; bonding the Ge wafer to the semiconductor wafer to form a bonded wafer pair; causing a first annealing to the bonded wafer pair, the first annealing occurring at a temperature approximately between 50-100Â° C.; and causing a second annealing to the bonded wafer pair, the second annealing occurring at a temperature approximately between 110-170Â° C., the second annealing cleaves the Ge wafer at the cleaving plane.