US 12,308,801 B2
Back-gate controlled power amplifier
Yiching Chen, San Jose, CA (US); and Zhixing Zhao, Dresden (DE)
Assigned to GLOBALFOUNDRIES U.S. INC., Malta, NY (US)
Filed by GLOBALFOUNDRIES U.S. Inc., Malta, NY (US)
Filed on Dec. 20, 2021, as Appl. No. 17/556,528.
Prior Publication US 2023/0198474 A1, Jun. 22, 2023
Int. Cl. H03F 1/32 (2006.01); H03F 3/213 (2006.01)
CPC H03F 1/3205 (2013.01) [H03F 3/213 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A structure comprising:
a plurality of auxiliary circuit devices comprising back-gate controls to perform a boost gain; and
a differential pair of circuit devices connected to the plurality of auxiliary circuit devices,
wherein a first transistor of the differential pair of circuit devices shares a gate with a first transistor of the plurality of auxiliary circuit devices and a second transistor of the differential pair of circuit devices shares a separate gate with a second transistor of the plurality of auxiliary circuit devices, and a drain of the first transistor of the differential pair of circuit devices is connected to a drain of the second transistor of the plurality of auxiliary circuit devices, and the differential pair of circuit devices and the plurality of auxiliary circuit devices are formed on a triple-well neighboring n-well layout, and the plurality of auxiliary circuit devices being formed over a shared well.