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. 26, 1999
Filed:
Mar. 11, 1998
Takekazu Yamashita, Nagasaki, JP;
Kiyoyuki Shiroshima, Hyogo, JP;
Michio Nakajima, Tokyo, JP;
Makoto Hatakenaka, Tokyo, JP;
Hideki Toki, Hyogo, JP;
Tuyoshi Saitoh, Nagasaki, JP;
Mitsubishi Electric System LSI Design Corporation, Hyogo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A semiconductor memory device is constituted such that, when a first wiring layer provides a bit line of a first common complementary data line pair and a third wiring layer provides a bit line of a second common complementary data line pair, a second wiring layer makes an overlapped area between the bit line and the bit bar line of the second common complementary dada line pair equal to the bit line of the first common complementary data line pair and also an overlapped area between the bit line and the bit bar line of the first common complementary data line pair equal to the bit line of the second common complementary data line pair.