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:
Aug. 05, 2014
Filed:
Jul. 18, 2012
Cui LI Chen, Shanghai, CN;
Xiao LI HU, Shanghai, CN;
Qing Q L LI, Shanghai, CN;
Rui Tu, Shanghai, CN;
Cui Li Chen, Shanghai, CN;
Xiao Li Hu, Shanghai, CN;
Qing Q L Li, Shanghai, CN;
Rui Tu, Shanghai, CN;
International Business Machines Corporation, Armonk, NY (US);
Abstract
Embodiments of the invention provide a sense amplifier, a SRAM chip comprising the sense amplifier and a method for conducting read operation on a SRAM cell. The sense amplifier according to an embodiment of the invention comprises a cross coupling circuit, a tail current transistor and an output stage, wherein source of the tail current transistor is connected to a negative level. With the scheme according to embodiments of the invention, speed of the sense amplifier can be enhanced, thereby increasing read speed of the SRAM chip.