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:
Oct. 25, 1994
Filed:
Aug. 10, 1993
Applicant:
Inventor:
Ichiro Murai, Sagamihara, JP;
Assignee:
Nippon Steel Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
257306 ; 257383 ; 257752 ; 257297 ;
Abstract
A semiconductor memory device comprising a semiconductor substrate, a MOS transistor formed on the semiconductor substrate and having source and drain diffused layers and a gate, an interlayer insulating film covering the MOS transistor, a contact hole formed in the interlayer insulating film so as to reach one of the source and the drain diffused layers, a metallic layer filling up the contact hole and a capacitor formed on the interlayer insulating film and connected electrically to the one diffused layer through the metallic layer.