Patent ID: 9293408
Filing Date: 2016-03-22
CPC Classification: H01L

Claim Text:
1. A method comprising: partitioning, by a computer, a layout of regions of a material about a line into a first set of the regions and a second set of the regions, wherein each region of the first set of regions defines a region to be covered by a layer material, and wherein each region of the second set of regions defines a region to be covered by the layer material; forming a composite layout that comprises a union of the first set and a mirror image of the second set about the line, wherein the composite layout is according to points in a co-ordinate system, wherein the mirror image comprises a set of mirror points on the side of the line having the first set of regions, each mirror point in the set of mirror points having a corresponding point in the second set of regions, wherein the mirror point and the corresponding point have respectively symmetric locations in the co-ordinate system in relation to the line; and adding a partial fill pattern to the composite layout, wherein the partial fill pattern does not intersect the composite layout.