Patent ID: 7135383
Filing Date: 2006-11-14
Classification: H01L

Abstract:
1. A process for manufacturing a composite structure, which comprises: bonding a support wafer to a donor wafer, wherein the donor wafer includes a layered structure comprising at least one monocrystalline material layer and at least one dielectric material layer as a surface layer that contacts the support wafer; and processing the donor wafer to remove a portion of the donor wafer and provide a remainder structure on the support wafer to form the composite structure, the composite structure including the at least one monocrystalline material layer and the at least one buried dielectric material layer, wherein the thermal characteristics and thicknesses of each layer can be individually selected as long as the resulting total thermal impedance between ambient temperature and 600° K of the composite structure is no greater than about 1.3 times the thermal impedance of a monocrystalline bulk SiC wafer with the same dimensions as the composite structure to provide sufficient heat dissipation properties to allow use of the composite structure for manufacturing optical, electronic, or optoelectronic components.