Patent ID: 7547917
Filing Date: 2009-06-16
Classification: H01L

Abstract:
1. A semiconductor device assembly comprising: a pFET device comprising a first substrate having a first crystal orientation; an nFET device comprising a second substrate having a second crystal orientation different from the first crystal orientation, wherein the nFET device is inverted on a surface of the pFET device such that a first dielectric layer of the pFET device is bonded to a second dielectric layer of the nFET device between the first substrate and the second substrate, a first gate contact of a first gate of the pFET device is aligned with and in direct contact with a second gate contact of a second gate of the nFET device, and a first metal source/drain contact of the pFET device is aligned with and in direct contact with a second metal source/drain contact of the nFET device.