| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a semiconductor integrated circuit device where design efficiency is improved, while realizing attainment of enhanced functions. <P>SOLUTION: An inner circuit is surrounded by a first cell, where a first switching element connecting a power voltage line or a ground line with the power supply line of the inner circuit is arranged below a first power supply line extending in a first direction; a second cell, in which a second switching element connecting first bias wiring connected to a first well region with first back-bias wiring, and plurality types of third switching elements connecting second bias wiring connected to a second well region with second back-bias wiring are arranged below a second power supply line extending in a second direction; and a third cell, in which a power switch controller for controlling the first switching element, fourth and fifth switching elements connecting the power voltage line corresponding to the first and second bias lines with the ground line, and a control circuit for controlling switching of the second and third switch elements are dispersed below a corner power supply line, connecting the first and second power supply lines. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
