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. 30, 2006
Filed:
Jan. 13, 2002
Applicants:
Steven Teig, Menlo Park, CA (US);
Joseph L. Ganley, Vienna, VA (US);
Inventors:
Steven Teig, Menlo Park, CA (US);
Joseph L. Ganley, Vienna, VA (US);
Assignee:
Cadence Design Systems, Inc., San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 9/45 (2006.01); G06F 17/50 (2006.01);
U.S. Cl.
CPC ...
Abstract
Some embodiments of the invention are placers that use diagonal lines in calculating the costs of potential placement configurations. For instance, some embodiments estimate the delay cost of a placement configuration by accounting for the potential use of diagonal wiring in the layout. Some of these embodiments derive the delay cost from an estimate of the wirelength needed to route the nets in the region.