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. 25, 2016
Filed:
May. 20, 2013
Hitachi, Ltd., Chiyoda-ku, Tokyo, JP;
Yoshitaka Sasago, Tokyo, JP;
Hiroyuki Minemura, Tokyo, JP;
Kenzo Kurotsuchi, Tokyo, JP;
Seiji Miura, Tokyo, JP;
Satoru Hanzawa, Tokyo, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
An object of this invention is to provide a semiconductor memory device capable of increasing the read transfer rate by performing the read operation in parallel while suppressing the voltage drop when a large current is passed to a memory chain and reducing a chip area by reducing the number of peripheral circuits to feed power. A semiconductor memory device according to this invention includes upper and lower electrodes in a flat plate shape, first and second select transistors extending in first and second directions respectively, and a wire arranged between the first select transistor and the second select transistor and the wire and the lower electrode are configured to be electrically insulated from each other by turning off the first select transistor (see FIG.).