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:
Sep. 21, 1993
Filed:
Jun. 30, 1992
Applicant:
Inventor:
Gordon L Mortensen, San Jose, CA (US);
Assignee:
National Semiconductor Corporation, Santa Clara, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
437 51 ; 437 44 ; 437 54 ; 437 56 ;
Abstract
An electrostatic discharge protection circuit having a non-lightly doped drain MOS device for protecting other lightly doped drain devices on an integrated circuit, and a method of concurrently fabricating both the non lightly doped and lightly doped devices on the substrate of the integrated circuit using substantially the same set of processing steps.