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:
Feb. 10, 1976
Filed:
Jan. 09, 1974
Applicant:
Inventor:
Tadashi Sano, Suwa, JA;
Assignee:
Kabushiki Kaisha Seikosha, Tokyo, JA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ; H01L / ; H01L / ; H01L / ;
U.S. Cl.
CPC ...
357 23 ; 357 41 ; 357 52 ; 357 59 ;
Abstract
An integrated circuit has semiconductor devices on a substrate. The devices each have gates of polycrystalline silicon and the devices are insulated from each other by a stopper diffused into the substrate between said devices at least in the regions adjacent said gates. Reliability of the integrated circuit is improved by having each polycrystalline silicon gate formed with a region adjacent said stopper diffused with impurity of the same polarity as the impurity diffused in said stopper.