Patent Document ID: 20030188280
Application ID: 10096169
Patent Flag: 0

Claim One:
1. A method for generating optimum skew corners for a compact device model, comprising the steps of: collecting a number N of multiple performance targets F i i&equals;1, 2,... N; identifying a number M of model parameters to be included in a skew corner analysis, and for each model parameter its tolerance and its nominal value in the compact device model; for each performance target F i, do a sensitivity analysis and find M sensitivity coefficients a ij (j&equals;1, 2,..., M); for each performance target (the i th target F i ), set the sign and value of a parameter &eegr; j for a skew corner case &eegr; i &equals;1 if the value of the target F i increases in the skew corner case &eegr; i &equals;−1 if the value of the target F i decreases in the skew corner case; classifying performance targets onto groups; for each group, comparing the number of targets N in the group and its relation to the number of model parameters M; and for each group, calculating a skew corner coordinate based on the relationship between the number of targets N and the number of model parameters M.