Patent ID: 9614148
Date: 2017-04-04
CPC Classifications: G01R,H01L

Claim:
1. A method of forming a semiconductor structure including a lateral bipolar junction transistor (BJT) comprising: providing a silicon on insulator structure, said silicon on insulator structure comprising an insulator layer formed atop a bottom semiconductor substrate, and having a top semiconductor layer formed on a top surface of said insulator layer, said top semiconductor layer having a doping of a first conductivity type; forming first and second trench isolation regions to define a base region of said top semiconductor layer of the first conductivity type doping; forming a top base contact structure including semiconductor material on a surface of said defined base region, said formed top base contact structure of semiconductor material having a doping of the first conductivity type; provide dielectric spacer structures at opposite sides of said base contact structure such that said dielectric spacer structures overlay respective opposite portions of said defined base region of said top semiconductor layer; converting a first region of said defined base region of said top semiconductor layer into an emitter region by introducing dopants of a second conductivity type that is the opposite of said first conductivity type into said defined base region underlying a first dielectric spacer structure, wherein a remaining portion of said base region portion laterally contacts said emitter region; and converting at least two second regions of said top segment portion of said top semiconductor layer into at least two collector regions by introducing dopants of the second conductivity type into said defined base region underlying an opposite side dielectric spacer structure, wherein each of the at least two collector regions are in spaced apart relation, and wherein a remaining portion of said base region laterally contacts each said at least two collector regions.