APPARATUS AND METHOD FOR CALCULATION CAPACITANCE BETWEEN POWER SUPPLIES OF INTEGRATED CIRCUIT

摘要

PROBLEM TO BE SOLVED: To provide a calculation apparatus capable of highly accurately calculating capacitance between power supply lines of an integrated circuit while suppressing an increase in calculation time even when a circuit scale is increased.SOLUTION: An input vector analysis part 12 analyzes logical value information indicating a logical value input to an input terminal of each logical element on the basis of an input vector. A logical element capacitance integration part 14 refers to a reference cell capacitance information storage part 15 and integrates parasitic capacitance of respective logical elements from the logical value information. An inter-wire capacitance integration part 16 refers to an inter-wire capacitance information storage part 17 and integrates parasitic capacitance of wires arranged between respective logical elements. A total capacitance addition output part 18 outputs a total value of the parasitic capacitance integrated by the logical element capacitance integration part 14 and the parasitic capacitance integrated by the inter-wire capacitance integration part 16 as capacitance between power supplies of the integrated circuit.