Patent ID: 8704238

Claim:
A three-dimensional integrated circuit device comprising: a first substrate having a first crystal orientation, and including: at least one or more PMOS device thereon; and a first dielectric layer overlying the one or more PMOS devices; a second substrate having a second crystal orientation and including: at least one or more NMOS devices thereon; and a second dielectric layer overlying the one or more NMOS devices; an interface region coupling the first dielectric layer to the second dielectric layer to form a hybrid structure including the first substrate overlying the second substrate; a dielectric layer overlying the hybrid structure; and a pressure sensing device overlying the dielectric layer, the pressure sensing device comprising: a diaphragm device having a first surface region facing and overlying the hybrid structure and a second surface region opposite the first surface region; at least one or more folded spring devices spatially disposed within a vicinity of the first surface region of the diaphragm device, each of the folded spring devices being operably coupled to the first surface region of the diaphragm device; two or more electrode devices operably coupled to the first surface region; a first cavity region provided between the first surface region and the hybrid structure, the first cavity region being substantially sealed and maintaining a predetermined environment; and a housing member provided overlying the second surface region of the diaphragm device to form a second cavity region between the housing member and the diaphragm device, the housing member comprising one or more fluid openings to allow fluid to move between the second cavity and a region outside of the housing member.