Patent ID: 8694930
Filing Date: 2014-04-08
Classification: G06F

Abstract:
1. A method for providing a layout defining a structure to be patterned onto a substrate, the structure being registered with a predefined grid of the layout, the method being performed by a machine and comprising: locally stretching the grid in a first portion of the layout, the first portion causing a problematic spot on the substrate; locally compressing the grid in a second portion of the layout surrounding the first portion of the layout; determining a first geometry of the first portion of the layout, the first geometry comprising a size and a shape enclosing the problematic spot; and determining a second geometry of the second portion of the layout, the second geometry comprising a size and a shape enclosing the first geometry, wherein the first and second geometries comprise a circle if a hotspot is of substantially square-shape or an ellipse if the hotspot is of substantially elongated shape.