Patent ID: 11961901
Assignee: GLOBALFOUNDRIES U.S. INC.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 13:
14. A method of forming a bipolar transistor structure, the method comprising:
forming a first emitter/collector (E/C) material above an insulator, the first E/C material having a first sidewall and a second sidewall over the insulator;
forming a first base above the insulator adjacent the first sidewall of the first E/C material;
forming a second base above the insulator adjacent the second sidewall of the first E/C material; and
forming a second E/C material above the insulator and adjacent the first base, wherein a width of the first base between the first E/C material and the second E/C material is less than a width of the first E/C material, and the first base protrudes horizontally outward from an end of the first E/C material and an end of the second E/C material,
wherein a semiconductor layer is between the first E/C material and the insulator and between the second E/C material and the insulator.