Patent ID: 8161426
Filing Date: 2012-04-17
Classification: G03F

Abstract:
1. A method for sizing a polygon in a layout, comprising: receiving a polygon which is to be sized by a sizing amount; selecting a vertex of the polygon, wherein the vertex is formed by a first edge and a second edge; replacing the selected vertex with a set of replacement vertices, which includes a first replacement vertex and a second replacement vertex; assigning, by computer, a projection path to each replacement vertex in the set of replacement vertices, which includes assigning a first projection path and a second projection path to the first replacement vertex and the second replacement vertex, respectively, wherein the first projection path and the second projection path are not perpendicular to either the first edge or the second edge; and sizing the polygon according to the sizing amount, which involves moving each replacement vertex in the set of replacement vertices along the assigned projection path, thereby creating a clipping on the angle associated with the selected vertex.