Patent ID: 9343440
Filing Date: 2016-05-17
CPC Classification: H01L,H03K

Claim Text:
1. A stacked composite device having a composite drain, a composite source, and a composite gate, said stacked composite device comprising: a group IV vertical transistor in a first active die; a group III-V transistor in a second active die stacked over said group IV vertical transistor, said group III-V transistor having a drain electrode on a front side of said second active die coupled to a drain on a back side of said second active die by a through-substrate via; a drain electrode of said group IV vertical transistor on a top side of said group IV vertical transistor being in direct contact with a source electrode of said group III-V transistor on said back side of said second active die, said source electrode of said group III-V transistor situated on said drain electrode of said group IV vertical transistor; a source of said group IV vertical transistor on a bottom side of said group IV vertical transistor being coupled to a gate of said group III-V transistor to provide said composite source on a bottom side of said stacked composite device; said drain electrode of said group III-V transistor providing said composite drain on a top side of said stacked composite device; a gate of said group IV vertical transistor providing said composite gate on said top side of said stacked composite device.