Patent ID: 7538368
Filing Date: 2009-05-26
Classification: H01L

Abstract:
1. A standard cell having a rectangular shape defined by a first direction and a second direction that is perpendicular to the first direction, the standard cell comprising: a plurality of transistors each having a diffusion region and a gate, a power supply wiring extended in the first direction, wherein the plurality of transistors include: at least one first transistor having larger gate length than the other transistors; and at least one second transistor adjacent to the first transistor and having a diffusion region apart from a diffusion region of the first transistor, and wherein the gate length of the at least one first transistor is defined by a length of gate in the first direction, and wherein a dummy gate is provided between the first transistor and the second transistor, a source/drain of the first transistor and a source/drain of the second transistor are separated; a width of the dummy gate in the first direction is smaller than a distance between the source/drain of the first transistor and the source/drain of the second transistor; and the dummy gate is provided in a region between the first and second transistors when viewed in plan view.