Patent ID: 7515150

Claim:
A semiconductor device comprising, on a principal surface of a substrate: a plurality of functional blocks each having a function to hold either a voltage determined by a current supplied from a current source or a voltage supplied from a voltage source and to supply a current or a voltage determined by the voltage thus held to an external circuit, a plurality of unit areas each having one of said functional blocks, supply interconnects for supplying the current supplied from the current source or the voltage supplied from the voltage source to said functional block, and signal interconnects for propagating a signal other than the current supplied from the current source or the voltage supplied from the voltage source, said unit areas being arranged in at least one direction on said principal surface, said signal interconnects including identical numbers of interconnects that connect to the functional block, said signal interconnects being disposed respectively on left and right sides of said functional block and extending in said one direction over said unit areas: wherein each of the unit areas comprising a layout of the functional block and respective portions of the supply and signal interconnects, the respective layouts of at least two adjacent unit areas being identical.