Wire Width Sizing for Delay and Yield Optimization

Abstract- In this paper, two issues about wire width are investigated. The first one is that “Is the minimum wire width under the minimum wire pitch for a process technology good enough from the perspective of timing performance? ” The second is that “Is delay sensitive to wire width variation around the optimal width? ” We find that the answer to the first issue is “yes”, whereas the answer to the second is “not quite”. Based on the later property, wire width/spacing can be sized to reduce shorts or opens on interconnects so that manufacturing yield can be improved without hampering too much performance. I