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:
Jan. 12, 2016
Filed:
Mar. 07, 2014
Applicant:
Taiwan Semiconductor Manufacturing Company, Ltd., Hsinchu, TW;
Inventor:
Bharath Upputuri, Santa Clara, CA (US);
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 7/02 (2006.01); G11C 11/419 (2006.01); G11C 7/06 (2006.01); G11C 11/413 (2006.01);
U.S. Cl.
CPC ...
G11C 11/419 (2013.01); G11C 7/067 (2013.01); G11C 11/413 (2013.01);
Abstract
In at least one embodiment, a sense amplifier circuit includes a bit line, a sense amplifier output, a keeper circuit, and a noise threshold control circuit. The keeper circuit is coupled to the bit line and includes an NMOS transistor coupled between a power node and the bit line. The keeper circuit is sized to supply sufficient current to compensate a leakage current of the bit line and configured to maintain a voltage level of the bit line. The noise threshold control circuit is connected to the sense amplifier output and the bit line. The noise threshold control circuit comprises an inverter.