Patent ID: 9008981
Filing Date: 2015-04-14
Classification: G06F

Abstract:
1. A computer-implemented method of verifying design validity of an electronic circuit board on which a semiconductor device is mounted, the computer-implemented method comprising: determining an amplitude of an input voltage to be applied from an electronic circuit board side to the semiconductor device based on a power supply voltage and characteristic impedances of the semiconductor device and the electronic circuit board; applying the input voltage to the semiconductor device from the electronic circuit board side; obtaining a reflected voltage at the semiconductor device with respect to the input voltage inputted to the semiconductor device from the electronic circuit board side, using a reflection coefficient determined based on associated characteristic impedances of the semiconductor device and the electronic circuit board; and comparing an absolute value of the reflected voltage with a predetermined tolerance range of power supply variation that assures operation of the semiconductor device and making a judgment as to whether or not the reflected voltage is within the tolerance range of power supply variation to perform verification of design validity.