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:
Apr. 26, 1994
Filed:
Aug. 16, 1991
Applicant:
Inventor:
Takeshi Noguchi, Hyogo, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C / ; H01L / ;
U.S. Cl.
CPC ...
365 51 ; 365148 ; 257380 ; 257381 ; 257903 ;
Abstract
A semiconductor memory device comprises a plurality of memory cells, and each of the memory cells includes a transistor region in which one or more transistors included in the memory cell are formed and a high-resistance element region in a resistor layer overlying the transistor region in which one or more high-resistance elements are formed. The high-resistance element region has a shape different from that of the transistor region and occupies an area not larger than that of the transistor region.