MASTER SLICE TYPE INTEGRATED CIRCUIT GROUP

PURPOSE:To contrive accomplishment of the layout design of the titled integrated circuit group in a highly efficient manner by a method wherein the channel width of the wiring located between functional blocks of the first kind and second kind master slice type ICs is variedly formed each other. CONSTITUTION:In two kinds of master slice type chips (a) and (b), the quantity of cell 1' in X and Y directions, which can be contained in one circuit functional block, is limited to P-pieces and q-pieces, and the blocks 3' and 4' are limited in size. The intercell distances l' and m' are made equal between the two chips (a) and (b) at the limit value or below, the group 5 consisting of the number of cells within the limit value is considered as 1 unit, and the intergroup distances (h), (i), (j) and (k) are independently established in the amount required for the chips (a) and (b). According to this constitution, circuit functional blocks can be used common between a plurality of master slice type ICs. Also, as cell groups are formed common in size, they can be made into macroscopic form by performing an interconnection, thereby enabling to obtain a layout structure suitable for multilayer automatic design.