Patent ID: 9035389
Filing Date: 2015-05-19
Classification: H01L

Abstract:
1. A device comprising: a first Metal-Oxide-Semiconductor (MOS) device; a second MOS device cascaded with the first MOS device to form a first finger, wherein a drain of the first MOS device and a source of the second MOS device are joined to form a first common source/drain region; a third MOS device; a fourth MOS device cascaded with the third MOS device to form a second finger, wherein a drain of the third MOS device and a source of the fourth MOS device are joined to form a second common source/drain region, wherein the first and the second common source/drain regions are electrically disconnected from each other, and wherein: a power bus in a metal layer and forming a continuous metal overlapping both the source of the first MOS device and the first common source/drain region, wherein the source of the first MOS device is connected to the power bus, and the first common source/drain region and the second common source/drain region are electrically disconnected from the power bus.