Kabushiki Kaisha Toshiba

Ryoko Usuba

Shinji Kitabayashi

Tatsuya Higashi

Junya Shirakura

In a circuit in which logic cells are regularly arranged, to supply to a substrate substrate potentials different from a power supply voltage and ground voltage which are supplied to sources of transistors in the cell, substrate potential supplying cells are arranged in a region in which the logic cells are arranged. The substrate potential supplying cells are connected to the substrate potentials through an n-type substrate potential NSUB line and p-type substrate potential PSUB line. The substrate potentials are supplied to apply them to the substrate. If the substrate potential lines are arranged in the logic cell region, the element area is greatly reduced. However, using the substrate potential supplying cells VSC can improve area efficiency.

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Yokosuka, Japan

Ryoko Usuba