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:
Jun. 17, 1986
Filed:
Feb. 15, 1984
Hiroshi Shimizu, Ikeda, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A semiconductor memory which comprises a memory section including a plurality of memory cell groups, each group including a plurality of memory cells; each of said memory cell groups including a circuitry arrangement in which the memory cells in each column are connected by a bit line, and in which the memory cells in each row are connected by a first word line; each of said first word lines having a second word line mating therewith, said second word line being made of aluminum; each of said memory cell groups including a column decoder for selecting one from said bit lines and a row decoder for selecting one from said second word lines each in accordance with an input address signal; and a group selecting unit including a group selecting decoder and a group selecting circuit, whereby said first and second word lines are connected or disconnected so as to enable the memory operation to be conducted group by group.