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:
Jul. 06, 1976
Filed:
Nov. 11, 1974
Applicant:
Inventors:
Hajime Yagi, Tokyo, JA;
Tadaharu Tsuyuki, Isehara, JA;
Kotaro Koma, Atsugi, JA;
Yoshihiro Miyazawa, Atsugi, JA;
Assignee:
Sony Corporation, Tokyo, JA;
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
357 36 ; 357 20 ; 357 45 ;
Abstract
A bipolar transistor has an emitter, a base, a collector and additional region which is electrically connected to the base region. The additional region is formed parallel to an emitter-base junction to inject minority carriers into the emitter and has a plurality of windows therein where a plurality of ohmic contacts for the emitter are located.