Patent ID: 7376927

Claim:
A method of routing a plurality of points to a center point for an integrated circuit layout, the method comprising: A. grouping the points into a respective set disposed within each of a plurality of quadrants, wherein the center point is a given location of a signal source for the integrated circuit, and wherein said points are given nodes of the integrated circuit receiving the signal from the center point, and wherein the quadrants are defined by a given lay-out grid of the integrated circuit and the center point; B. defining a respective rectangle from each of the points and borders of the respective quadrant for each of the points; C. Manhattan routing with wiring a first point to a second point when the first point is within the respective rectangle for the second point, for each of the points to define a respective set of at least one initial end point for each of the quadrants; and D. Manhattan routing with wiring the respective at least one initial end point to the center point within each quadrant such that a total Manhattan wiring between said points and the center point is minimized, wherein the signal from the center point is applied to said points via the total Manhattan wiring.