Patent ID: 7870533

Claim:
A computer-readable recording medium storing therein a computer program for analyzing delay in a target circuit having a plurality of paths using within-die delay distributions and die-to-die delay distributions thereof, wherein each within-die delay distribution represents delay based on circuit element performances of all circuit elements in each path and each die-to-die delay distribution represents delay based on a mutual correlation between circuit elements in said each path, the computer program causing a computer to execute: extracting the within-die delay distributions and the die-to-die delay distributions of two paths from a delay distribution aggregation; calculating an effect index, which is indicative of a relative error of an overall path delay distribution of one path and an overall path delay distribution of an integrated path formed by the two paths, based on the within-die delay distributions and the die-to-die delay distributions of the two paths; judging whether the effect index is equal to or greater than a threshold value; and calculating the overall path delay distribution of the integrated path based on a judgment result at the judging.