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. 02, 2010
Filed:
Jul. 10, 2008
Heechoul Park, San Jose, CA (US);
Wilson Chin, Cupertino, CA (US);
Kuan-yu James Lin, San Jose, CA (US);
Sanjaya Dharmasena, San Jose, CA (US);
Heechoul Park, San Jose, CA (US);
Wilson Chin, Cupertino, CA (US);
Kuan-Yu James Lin, San Jose, CA (US);
Sanjaya Dharmasena, San Jose, CA (US);
Sun Microsystems, Inc., Santa Clara, CA (US);
Abstract
A SRAM memory with a read assist circuit is presented. The read assist circuit uses bitline voltage level switches, which are connected to a low power supply and a high power supply. The bitline voltage level switches have a write operation state, a read operation state, and a standby operation state. The write operation state selectively provides the high power supply to bitlines in columns selected for a write operation, and provides the low power supply to bitlines in the remaining columns. The read operation state selectively provides the low power supply to bitlines in columns selected for the read operation, and provides the low power supply to bitlines in the other columns. The standby operation state selectively provides the low power supply to bitlines in all columns when not in the read operation state or the write operation state.