| 摘要 |
PROBLEM TO BE SOLVED: To provide a high-speed and highly accurate power supply voltage variation testing apparatus, a method, and a computer program. SOLUTION: A determination part 1-5 determines the level of a power supply voltage variation found out by a power supply voltage variation analysis part 1-2 to execute an optimum delay analysis based on a determination result. When the power supply voltage variation is small, a delay analysis based on the detailed power supply variation analysis can be omitted only by adding a fixed margin. Further, a method for performing a highly accurate power supply voltage variation test by using a power supply current expressed as a function of a time is also disclosed. COPYRIGHT: (C)2009,JPO&INPIT
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