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:
Jun. 20, 2006
Filed:
Apr. 17, 2003
Charles Jay Alpert, Round Rock, TX (US);
Rama Gopal Gandham, Wappinhgers Falls, NY (US);
Jiang HU, College Station, TX (US);
Stephen Thomas Quay, Austin, TX (US);
Charles Jay Alpert, Round Rock, TX (US);
Rama Gopal Gandham, Wappinhgers Falls, NY (US);
Jiang Hu, College Station, TX (US);
Stephen Thomas Quay, Austin, TX (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method, computer program product, and data processing system for porosity-aware buffered Steiner tree construction are disclosed. A preferred embodiment begins with a timing-driven Steiner tree generated without regard for porosity, then applies a plate-based adjustment guided by length-based buffer insertion. After performing localized blockage avoidance, the resulting tree is then passed to a buffer placement algorithm, such as van Ginneken's algorithm, to obtain a porosity-aware buffered Steiner tree.