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:
May. 01, 2007
Filed:
Feb. 18, 2005
Applicants:
Chen-hui Hsieh, Chu-Pei, TW;
Hau-tai Shieh, Hsinchu, TW;
Tao-ping Wang, Hsinchu, TW;
Inventors:
Assignee:
Taiwan Semiconductor Manufacturin Co., Ltd., Hsin-Chu, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 27/28 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method and system is presented for measuring a data access time of an embedded macro module in an integrated circuit. A single external test signal is inputted into the embedded macro module for enabling a data input therein and extracting a data output therefrom. A pulse width of the single external test signal is incrementally increased until a latch of the data output is observed. Then, the data access time is obtained, as its substantially equals a time interval of the increased pulse width.