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.:

US 9093155 B1

PDF
Full Text
Expired
Date of Patent:
Jul. 28, 2015

Filed:

Mar. 04, 2013
Applicant:

Kabushiki Kaisha Toshiba, Tokyo, JP;

Inventor:

Katsuaki Sakurai, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 7/02 (2006.01); G11C 16/08 (2006.01); G11C 16/26 (2006.01); G11C 16/34 (2006.01); H01L 27/115 (2006.01); G11C 11/4074 (2006.01); G11C 16/10 (2006.01);
U.S. Cl.
CPC ...
G11C 16/08 (2013.01); G11C 16/26 (2013.01); G11C 16/3427 (2013.01); H01L 27/1157 (2013.01); H01L 27/11582 (2013.01); G11C 11/4074 (2013.01); G11C 16/10 (2013.01);
Abstract

A semiconductor memory device includes a memory cell array in which memory cells are arranged, and a first wiring connected to the memory cells. A discharging circuit discharges the voltage of the first wiring according to a first current. In addition, a charging circuit charges the voltage of the first wiring according to a second current. A control circuit detects the voltage of the first wiring and controls a magnitude of the second current based on the detected voltage. A current detection unit generates a third current proportional to the second current and generates a detection result based on a magnitude of the third current. The discharging circuit is configured to control a magnitude of the first current in accordance with the detection result.


Find Patent Forward Citations

Sakurai, Katsuaki. (2015). Semiconductor memory device (U.S. Patent No. 9093155). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9093155

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…