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.

Date of Patent:
Jul. 02, 2013

Filed:

Sep. 25, 2009
Applicants:

Randall Scott Lawson, Westford, MA (US);

Richard Allen Woodward, Jr., San Diego, CA (US);

Brett Allen Neal, Monument, CO (US);

Ken Wadland, Grafton, MA (US);

Inventors:

Randall Scott Lawson, Westford, MA (US);

Richard Allen Woodward, Jr., San Diego, CA (US);

Brett Allen Neal, Monument, CO (US);

Ken Wadland, Grafton, MA (US);

Assignee:

Cadence Design Systems, Inc., San Jose, CA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F 17/50 (2006.01);
U.S. Cl.
CPC ...
Abstract

Techniques that can improve the efficiency of routing where connections are subject to elongation constraints. The design can be optimized by estimating elongation needed to meet constraints after an initial routing solution has been generated, but before elongation is actually applied to detailed paths. Paths can be re-routed at this earlier stage if it is determined that too much elongation, or too much elongation in crowded areas, will need to be added after the detail routing stage.


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