Patent ID: 8407642
Filing Date: 2013-03-26
Classification: G06F

Abstract:
1. A leak current calculation apparatus to calculate a leak current value of an integrated circuit including a plurality of partial circuits, the leak current calculation apparatus comprising: an acquiring section to acquire partial circuit information including leak current values caused by the partial circuits when input signal patterns are inputted to the partial circuits for each of the partial circuits; a grouping section to form a plurality of circuit groups each including a part of the partial circuits connected with each other and to generate circuit group information including leak current values caused by the circuit groups when input signal patterns are inputted to the circuit groups for each of the circuit groups based on the acquired partial circuit information; a leak difference value calculating section to calculate a leak difference value, which is a difference between a provisional maximum value acquired by adding up maximum values of the leak current values of all the partial circuits and a sum of maximum values of the leak current values contained in the circuit group information of the circuit groups; and a maximum leak current calculating section to calculate a maximum leak current value of the integrated circuit by adjusting the provisional maximum value with the leak difference value.