Abstract: A semiconductor integrated circuit device including a redundant metal line for replacing a non-operational metal line for connecting to a circuit block. The invention further includes a method for decoupling a defective or otherwise non-operational conductive data line from a circuit block to which it is connected, and replacing the defective conductive data line with a redundant line by coupling it to the same circuit block. A spare conductive block is not needed. The redundant metal lines may be used in multiple levels of hierarchy within an integrated circuit device.

Abstract: An arrangement of enhanced drivability transistors is disclosed herein which includes a plurality of conductor patterns, wherein the conductor patterns include ring-shaped portions which enclose device diffusion contacts and the ring-shaped portions form the gate conductors of insulated gate field effect transistors (IGFETs).