Patent ID: 11967637
Assignee: GLOBALFOUNDRIES U.S. INC.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 17:
18. The method of claim 16,
wherein an insulator layer is adjacent to the opposing sidewalls of the semiconductor fin,
wherein the base recess formed so that a bottom of the base recess is above a level of a top surface of the insulator layer,
wherein the base semiconductor layer is further formed so as to extend along the opposing sides of the semiconductor fin to the top surface of the insulator layer,
wherein the additional base semiconductor layer is further formed so as to wrap over the base semiconductor layer to the insulator layer and fill remaining space within the base opening, and
wherein the collector and emitter recesses are formed so bottoms of the collector and emitter recesses are above the level of the top surface of the insulator layer.