Method for designing semiconductor device

A computer readable recording medium recording a program for designing a semiconductor device having a plurality of logic elements provided with a plurality of power supplies, the program includes the steps of:

• giving a power supply type name to each power supply in accordance with the purpose of the power supply in each logic element;
• associating each logic element with the power supply type name of the power supply that is to be provided to the logic element;
• forming a power supply group for each power supply;
• generating specific information of each power supply group associating the power supply type name with supplied voltage;
• and
• determining the power supply provided to each logic element by allocating the power supply group, which is associated with the supplied voltage and the power supply type name of the power supply provided to the logic element, to the logic element.