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. 14, 2014
Filed:
Sep. 12, 2011
Susumu Shuto, Yokohama, JP;
Susumu Shuto, Yokohama, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A semiconductor memory device according to an embodiment includes: a plurality of magnetic tunnel junction elements arranged on a semiconductor substrate; and a plurality of selection transistors electrically connected to first ends of the plurality of magnetic tunnel junction elements. A plurality of first bit lines are respectively connected to the first ends of the magnetic tunnel junction elements via one or more of the selection transistors. A plurality of upper electrodes are respectively connected to second ends of the plurality of magnetic tunnel junction elements. A plurality of second bit lines are respectively connected to the second ends of the magnetic tunnel junction elements via the upper electrodes. The upper electrodes extend along the second bit lines, and one of the upper electrodes is commonly connected to the second ends of the plurality of magnetic tunnel junction elements arranged in an extending direction of the second bit lines.