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:
Sep. 06, 2011
Filed:
Dec. 29, 2008
Hsin-po Wang, Hsinchu, TW;
Yu-sheng LU, Hsinchu, TW;
Fong-yuan Chang, Taichang, TW;
Yi-der Lin, Taipei, TW;
Sung-han Tsai, Taichung, TW;
RU Lin Yang, Hsinchu, TW;
Chun-cheng Chi, Tai Chung, TW;
Hsueh Liang Hsu, Tao Yuan, TW;
Hsin-Po Wang, Hsinchu, TW;
Yu-Sheng Lu, Hsinchu, TW;
Fong-Yuan Chang, Taichang, TW;
Yi-Der Lin, Taipei, TW;
Sung-Han Tsai, Taichung, TW;
Ru Lin Yang, Hsinchu, TW;
Chun-Cheng Chi, Tai Chung, TW;
Hsueh Liang Hsu, Tao Yuan, TW;
Springsoft USA, Inc., San Jose, CA (US);
Abstract
An engineering change order (ECO) modifying an IC having spare cell instances is implemented by converting active cell instances implementing portions of the IC to be deleted into additional spare cell instances, by creating a technology independent behavioral model of portions of the IC to be added, by selecting spare cell instances to implement the behavior model, and by routing nets to the selected spare cell instances in a way that minimizes a number of metal layers of the IC that are modified.