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.

Date of Patent:
Nov. 05, 2019

Filed:

May. 21, 2014
Applicant:

Analog Devices Global, Hamilton, BM;

Inventors:

Edward John Coyne, Galway, IE;

William Allan Lane, Cork, IE;

Seamus P. Whiston, Limerick, IE;

Assignee:

Analog Devices Global, Hamilton, BM;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 29/08 (2006.01); H01L 29/732 (2006.01); H01L 29/45 (2006.01); H01L 29/10 (2006.01); H01L 29/423 (2006.01); H01L 29/66 (2006.01); H01L 29/06 (2006.01);
U.S. Cl.
CPC ...
H01L 29/0821 (2013.01); H01L 29/0649 (2013.01); H01L 29/1004 (2013.01); H01L 29/42304 (2013.01); H01L 29/45 (2013.01); H01L 29/66272 (2013.01); H01L 29/732 (2013.01);
Abstract

A modified bipolar transistor is provided which can provide improved gain, Early voltage, breakdown voltage and linearity over a finite range of collector voltages. It is known that the gain of a transistor can change with collector voltage. This document teaches a way of reducing this variation by providing structures for the depletion regions with the device to preferentially deplete with. As a result the transistor's response can be made more linear.


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