| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a function with a reduced calculation amount required for leakage current analysis of an entire analyzed circuit. <P>SOLUTION: A variation function L1 is represented by: an average value for each cell included in an analyzed circuit 100, which is obtained from a normal distribution represented by a constant a, a first weight coefficient b, and a first probability variable α that shows variations in leakage current specific to the cell; and a result therefor which is obtained by multiplying a second probability variable β that shows variations in leakage current common in cell groups in the analyzed circuit 100 by a second weight coefficient c. In the variation function L1, non-existence of the first probability variable α reduces a calculation amount for generating a value of the first probability variable α with a random number predetermined times. An analyzer provides the variation function L1 with a value of the constant a, a value of the first weight coefficient b, and a value of the second weight coefficient c that are acquired for each cell, and thereby generates the variation function of a leakage current quantity of the analyzed circuit 100 which varies according to a value of the second probability variable β. <P>COPYRIGHT: (C)2013,JPO&INPIT |
