Capacitance forming method

摘要

A capacitance forming method for forming capacitances corresponding to a plurality of constant numbers within a large scale integrated circuit (LSI) comprises steps of defining a unit capacitance with a predetermined shape, defining an arrangement of a plurality of the unit capacitances of a number necessary for total capacity of capacitances to be formed in two dimension in an area of the LSI, selecting the unit capacitances of a number corresponding to the maximal capacity among capacities of the capacitances to be formed so that the selected unit capacitances are equivalently dispersed over the area, and successively selecting other of the capacitances than the capacitance of the maximal capacity in the order of capacities, and selecting the unit capacitances of a number corresponding to a capacity of each the capacitance selected so that the selected unit capacitances are equivalently dispersed over an area of the rest of the unit capacitances which have not selected yet.