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. 06, 1998
Filed:
Mar. 11, 1997
Applicant:
Inventors:
Nobuyuki Kokubo, Hyogo, JP;
Kazuya Ikeda, Hyogo, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ; H01L / ; H01L / ; H01L / ;
U.S. Cl.
CPC ...
257368 ; 257903 ; 257904 ; 257393 ;
Abstract
In a memory cell region, there are formed a pair of driver transistors and a pair of access transistors. On an insulating layer covering these transistors, there are formed a pair of high resistances. To cover the high resistances, there is formed an insulating layer. On the insulating layer, there is formed a word line. To cover the word line, there is formed an insulating layer and, on the insulating layer, there are formed a GND wiring and bit lines. Thereby, a semiconductor memory device capable of stabilized operation even when a lowered power source voltage is used can be obtained.