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:
Oct. 30, 2012
Filed:
Aug. 26, 2010
Applicants:
Derek C. Tao, Fremont, CA (US);
Annie-li-keow Lum, San Jose, CA (US);
Chung-ji LU, Fongyuan, TW;
Inventors:
Assignee:
Taiwan Semiconductor Manufacturing Co., Ltd., Hsin-Chu, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 8/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A semiconductor memory segment includes a first memory bank having a first tracking cell disposed in a first tracking column. A second memory bank includes a second tracking cell disposed in a second tracking column. A first tracking circuit is coupled to the first and second tracking cells and is configured to output a first signal to memory control circuitry when the first and second tracking cells are accessed. The memory control circuitry is configured to set a clock based on the first signal.