TIMING VERIFICATION METHOD, TIMING VERIFICATION APPARATUS AND TIMING VERIFICATION PROGRAM

摘要

PPROBLEM TO BE SOLVED: To shorten the processing time of timing verification while ensuring accuracy. PSOLUTION: A timing verification method includes performing a timing analysis considering voltage drops of a circuit laid out (Step S70), and creating a modification instruction list for modifying the circuit laid out according to the timing analysis results (Step S90). In the first timing verification, a voltage drop analysis is performed for the circuit laid out (Step S40), a voltage drop list is created according to the voltage drop analysis results (Step S60), and the timing analysis is performed with the voltage drop list (Step S70). Meanwhile, in later timing verification, the voltage drop list is updated according to the modification instruction list (Step S100), and the timing analysis is performed with the updated voltage drop list (Step S70). PCOPYRIGHT: (C)2008,JPO&INPIT