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. 15, 1991
Filed:
Dec. 24, 1990
Applicant:
Inventors:
John M Pigott, Phoenix, AZ (US);
Randall T Wollschlager, Chandler, AZ (US);
Assignee:
Motorola Inc., Schaumburg, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
357 13 ; 357 2313 ; 357 238 ; 357 41 ; 357 43 ; 357-7 ;
Abstract
A device including a first semiconductor PN junction which is reverse biased to operate in the avalanche breakdown region. A second semiconductor PN junction is biased to operate in the forward active region such that carriers are injected through the second semiconductor PN junction and diffuse to the first semiconductor PN junction wherein the noise generated from the first semiconductor PN junction operating in the avalanche breakdown region is substantially reduced.