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:
Aug. 03, 1999
Filed:
Apr. 10, 1997
Hirotomo Miura, Tokyo, JP;
Nippon Steel Corporation, Tokyo, JP;
Abstract
An input protective circuit includes a resistance element for connecting the input terminal and internal circuit of a semiconductor integrated circuit, and a field effect transistor for discharging a surge input to the ground potential. Adjacent diffusion layer regions consisting of a diffusion resistance layer corresponding to the resistance element and an impurity diffusion layer corresponding to the drain or source of the field effect transistor and connected adjacent to each other are formed by double diffusion using ion implantation.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile