Semiconductor device, designing device, layout designing method, program and storage medium

A designing device for designing a layout of a semiconductor device, comprising:

• a layout position candidate extracting unit for obtaining layout position candidates of regulators;
• a tentatively wiring unit for tentatively arranging a plurality of regulators at the layout position candidates and tentatively laying out a power line;
• and
• a regulator layout position deciding unit for deciding a position of a tentative layout at which an area of the power line that is tentatively laid out is the smallest as the layout position of the regulators.

A semiconductor device, comprising:

• a power terminal;
• a circuit block that is subjected to layout design by a hard macro;
• and
• a regulator that is located in the vicinity of the power terminal and the circuit block.

A layout designing method for a semiconductor device, comprising:

• obtaining layout position candidates of a regulator;
• tentatively arranging the regulator at the layout position candidates, then tentatively laying out a power line, and obtaining an area of the power line when the regulator is tentatively arranged at the respective layout position candidates;
• and
• arranging the regulator at a tentative layout position at which an area of the power line that is tentatively laid out is the smallest.

A layout designing method for a semiconductor device, comprising:

• obtaining layout position candidates of regulators;
• tentatively arranging a plurality of regulators at the layout position candidates, and then tentatively laying out a power line;
• and
• arranging the regulators at the tentative layout positions at which the total of the areas of the power line that is tentatively laid out and the plurality of regulators is the smallest.

A portable storage medium storing a program used in a computer to perform:

• obtaining layout position candidates of a regulator;
• tentatively arranging the regulator at the layout position candidates, then tentatively laying out a power line, and obtaining an area of the power line when the regulator is tentatively arranged at the respective layout position candidates;
• and
• arranging the regulator at a tentative layout position at which an area of the power line that is tentatively laid out is the smallest.

A portable storage medium storing a program used in a computer to perform:

• obtaining layout position candidates of regulators;
• tentatively arranging a plurality of regulators at the layout position candidates, and then tentatively laying out a power line;
• and
• arranging the regulators at the tentative layout positions at which the total of the areas of the power line that is tentatively laid out and the plurality of regulators is the smallest.