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:
Mar. 31, 2015
Filed:
Sep. 06, 2013
Kabushiki Kaisha Toshiba, Minato-ku, JP;
Koichi Matsuno, Mie-gun, JP;
Yoshihiro Yanai, Yokkaichi, JP;
Kabushiki Kaisha Toshiba, Minato-ku, JP;
Abstract
A semiconductor storage device according to the present embodiment includes a semiconductor substrate. A memory cell array includes a plurality of memory cells provided on the semiconductor substrate in an array direction. A selection gate transistor is provided on an end of the memory cell array, and is used to select the memory cells from the memory cell arrays. A dummy cell is provided between a gate electrode of one of the memory cells on the end of the memory cell array and a gate electrode of the selection gate transistor. The width of a gate electrode of the dummy cell in the array direction of the memory cells and the dummy cell is twice or more as large as the width of the gate electrode of one of the memory cells.