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:
Apr. 16, 2013
Filed:
Mar. 15, 2010
Applicants:
Cheng-chi Lin, Toucheng Township, Yilan County, TW;
Shuo-lun Tu, Hsin-Chu, TW;
Shih-chin Lien, Sinjhuang, TW;
Inventors:
Cheng-Chi Lin, Toucheng Township, Yilan County, TW;
Shuo-Lun Tu, Hsin-Chu, TW;
Shih-Chin Lien, Sinjhuang, TW;
Assignee:
Macronix International Co., Ltd., Hsinchu, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 31/072 (2012.01);
U.S. Cl.
CPC ...
Abstract
An NPN bipolar junction transistor is disclosed that exhibits a collector-to-emitter breakdown voltage greater than 10 volts and a beta greater than 300. The large value of beta is obtained by fabricating the transistor with an extra N-type layer that reduces recombination of electrons and holes.