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. 04, 1993
Filed:
Dec. 13, 1990
Dale M Wong, San Francisco, CA (US);
VLSI Technology, Inc., San Jose, CA (US);
Abstract
In a method for optimizing placement of circuit components on at least one integrated circuit, a list of circuit components is constructed. For each pairing of circuit components on the list, a total cost of the pairing is calculated. The total cost being calculated by first calculating the dead space resulting from the pairing, then estimating the total increase in routing area resulting from the pairing, and finally adding the dead space to the total increase in routing area to obtain the total cost. The estimation of the total increase in routing area resulting from the pairing is done by first estimating an increase in connectivity area resulting from the pairing. Then, a decrease in connectivity area resulting from the pairing is estimated. Finally, the decrease in connectivity area is subtracted from the increase in connectivity area to obtain the total increase in routing area.