Patent ID: 11916109
Assignee: GLOBALFOUNDRIES U.S. INC.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 7:
8. A bipolar transistor structure comprising:
a first emitter/collector (E/C) layer on a first portion of an insulator layer;
a spacer on the first E/C layer;
a base layer over a second portion of the insulator layer, the base layer including:
a lower base region on the insulator layer, wherein the first E/C layer and the spacer are adjacent the lower base region, and
an upper base region on the lower base region and the spacer, wherein a horizontal width of the upper base region is larger than a combined horizontal width of the lower base region and the spacer, and the upper base region overhangs an outers sidewall of the spacer; and

a silicide layer on the upper base region, wherein the silicide layer contacts an upper surface, a lower surface, and sidewalls of the upper base region.