Patent · US Active

SOI lateral bipolar transistors having surrounding extrinsic base portions

US9502504B2 · kind B2 · utility

17Cited by
11References
20Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 19, 2013
Grant dateNov 22, 2016
Priority date
Expiry dateAug 27, 2034

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH10D86/201

Abstract

Lateral SOI bipolar transistor structures are provided including an intrinsic base semiconductor material portion in which all surfaces of the intrinsic base not forming an interface with either a collector semiconductor material portion or an emitter semiconductor material portion, contain an extrinsic base semiconductor material portion. Each extrinsic base semiconductor material portion is of the same conductivity type as that of the intrinsic base semiconductor material portion, yet each extrinsic base semiconductor material portion has a higher dopant concentration than the intrinsic base semiconductor material portion. The intrinsic base semiconductor material portion of the lateral SOI bipolar transistors of the present application does not have any interface with surrounding insulator material layers. As such, any potential charge build-up in the surrounding insulator material layers is shielded by the extrinsic base semiconductor material portions.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.