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:
Jan. 06, 1981
Filed:
Dec. 20, 1978
Applicant:
Inventors:
Heinrich Schlangenotto, Neu-Isenburg, DE;
Friedhelm Sawitzki, Frankfurt am Main, DE;
Ronald Henson, Neu-Isenburg, DE;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
357 28 ; 357 38 ; 357 51 ; 361 11 ; 361 58 ;
Abstract
The negative temperature coefficient effect, which results in destructive current flow above a certain temperature in a semiconductor device is counteracted by a layer of conductive material that has low resistance at normal temperatures but has a positive temperature coefficient that causes its resistance to rise to a high value at temperatures below the certain temperature. The layer is applied to electrodes of semiconductor devices to control current flowing therethrough.