Patent ID: 7247894
Filing Date: 2007-07-24
Classification: G06F,G11C,H01L

Abstract:
1. An integrated circuit structure comprising: a filler cell comprising an n-well; a voltage routing wire in a first metal layer and within the filler cell boundary; a wire group comprising a first voltage supply wire carrying a first voltage and a second voltage supply wire carrying a second voltage, wherein each of the first and second voltage supply wires are formed in a respective metal layer selected from a second metal layer and a third metal layer; wherein the first and the second voltage supply wires are substantially parallel and have a separation distance substantially equal to the width of the voltage routing wire; wherein each of the first and the second voltage supply wires has an edge substantially aligned with an edge of the voltage routing wire; and a via connecting the voltage routing wire to one of the first and second voltage supply wires in the wire group.