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. 05, 2018
Filed:
Mar. 08, 2017
Toshiba Memory Corporation, Minato-ku, JP;
TOSHIBA MEMORY CORPORATION, Minato-ku, JP;
Abstract
According to one embodiment, a nonvolatile semiconductor memory includes a semiconductor substrate, a first substrate area in the semiconductor substrate, a first cell unit in the first substrate area, the first cell unit including a first memory cell and a first transistor, and the first transistor having a control terminal connected to a first word line, using the first substrate area as a channel and supplying a read current or a write current to the first memory cell, and a substrate potential setting circuit setting the first substrate area to a first substrate potential when the read current is supplied to the first memory cell, and setting the first substrate area to a second substrate potential different from the first substrate potential when the write current is supplied to the first memory cell.