×

Computer product, apparatus, and method for correcting time delay variation of a circuit design

  • US 8,381,146 B2
  • Filed: 03/16/2011
  • Issued: 02/19/2013
  • Est. Priority Date: 06/18/2010
  • Status: Active Grant
First Claim
Patent Images

1. A non-transitory computer-readable medium storing therein a design support program that causes a computer capable of accessing a storage device storing therein, for each of a plurality of cells, output voltage values for a plurality of elapsed time periods from a start time of variation of an input voltage applied to the cell, to execute a process comprising:

  • extracting, from the storage device, the output voltage values corresponding to a cell to be designed, the cell to be designed being selected from circuit information of a circuit to be designed;

    determining, from among the elapsed time periods corresponding to the extracted output voltage values, an elapsed time period to be corrected on the basis of a specific voltage value;

    correcting the elapsed time period that is determined by adding a time constant to an output side of the cell to be designed to the determined elapsed time period, the time constant being determined on the basis of wiring resistance and load capacitance of the output side of the cell to be designed; and

    outputting, from among the extracted output voltage values, the output voltage value for the elapsed time period that is corrected and the second output voltage value for the elapsed time period that has not been corrected.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×