The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 04, 2015
Filed:
Feb. 04, 2014
Applicant:
Triquint Semiconductor, Inc., Hillsboro, OR (US);
Inventors:
Timothy S. Henderson, Portland, OR (US);
Robert E. Knapp, Portland, OR (US);
Assignee:
TriQuint Semiconductor, Inc., Hillsboro, OR (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 29/74 (2006.01); H01L 31/072 (2012.01); H01L 21/331 (2006.01); H01L 29/732 (2006.01); H01L 29/66 (2006.01);
U.S. Cl.
CPC ...
H01L 29/732 (2013.01); H01L 29/66272 (2013.01);
Abstract
Various embodiments provide an electrostatic discharge (ESD) protection device. The ESD protection device may include a subcollector, collector, base, and emitter formed in layers on top of one another. The emitter may include a different semiconductor than a semiconductor included in the base to form a heterojunction. The ESD protection device may include a collector contact disposed on the subcollector and an emitter contact disposed on the emitter. The ESD protection device may be a two-terminal device, with no conductive base contact coupled with the base.