Layout device

摘要

A layout device includes a processing type setting part for classifying a layout of a semiconductor integrated circuit every area in accordance with the percentage voltage drop in the circuit, and for extracting a processing target portion composed of a group of areas including an area whose percentage voltage drop exceeds a predetermined threshold; a layout generating part for applying layout change processing to alleviate a difference of the percentage voltage drop among the areas to circuit components such as power supply wiring and connecting points in the processing target portion.