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. 11, 2002
Filed:
Oct. 08, 1999
Applicant:
Inventor:
Paul D Nuber, Ft Collins, CO (US);
Assignee:
Agilent Technologies, Inc., Palo Alto, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 1/750 ;
U.S. Cl.
CPC ...
G06F 1/750 ;
Abstract
Routing density estimates within a given integrated circuit are calculated from a proposed floor plan and block interconnect data. The chip is first divided into a number of grid areas, then the routing density is estimated for each grid area. This estimate is calculated by estimating grid areas that signals most likely will cross and summing probabilities. Both horizontal and vertical routing densities are estimated. The estimates for each grid area may then be saved in computer memory, printed, input to a spreadsheet, displayed on the screen, or returned in any other desired format.