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. 24, 1990
Filed:
Nov. 01, 1988
Applicant:
Inventors:
Assignee:
U.S. Philips Corp., New York, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K / ; H03K / ; H03K / ; H03K / ;
U.S. Cl.
CPC ...
307542 ; 3072968 ; 307300 ; 307443 ; 307451 ; 307585 ;
Abstract
A digital circuit with a 5 V power supply voltage in which NMOS transistors constructed in sub-micron technology are protected against excessive field strengths by means of additional transistors in order to prevent so-called 'hot carrier stress' for this purpose the additional transistors have a greater channel length and/or a higher threshold voltage.