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:
Jul. 30, 1996
Filed:
Dec. 08, 1994
Applicant:
Inventor:
Yoshiki Nagatomo, Tokyo, JP;
Assignee:
Oki Electric Industry Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
257306 ; 257307 ; 257308 ; 257309 ; 257908 ;
Abstract
In a semiconductor memory device, storage electrodes of two memory cells adjacent to each other are superimposed with each other, with their contours being substantially aligned. As a result, the storage electrodes are extended to cover two memory cell regions. The superimposed storage electrodes are electrically insulated from each other, and the upper storage electrode extends through the lower storage electrode.