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:
Oct. 28, 1980
Filed:
Nov. 01, 1978
Applicant:
Inventors:
Philip L Hower, Pittsburgh, PA (US);
Derrick J Page, Murrysville Borough, PA (US);
Assignee:
Westinghouse Electric Corp., Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
357 68 ; 357 65 ; 357 36 ; 357 38 ; 29589 ; 29591 ;
Abstract
A transistor in which this effective emitter resistance which is determined by the geometry of the emitter metallization as disclosed. In the preferred embodiment, the emitter metallization comprises a series of circular 'dots' which are distributed over the entire emitter area. The area of the 'dots' with respect to the entire emitter area is selected such that the desired effective emitter resistance is achieved.