Patent ID: 8122846
Filing Date: 2012-02-28
Classification: G03F,Y10T

Abstract:
1. A processing platform configured to write a pattern on a nominally flat workpiece larger than about 5 m 2 and less than about 1 mm thick, the pattern being defined in a first coordinate system on the workpiece in a flat state, the processing platform comprising: at least one writing tool; a stage configured to clamp the workpiece to a cylinder, thereby bending the workpiece to a curved state in which the workpiece is to be written when rotated relative to the at least one writing tool; a position controller configured to control movements of the at least one writing tool relative to the stage in a second coordinate system on the curved surface of the workpiece; a metrology system configured to provide metrology information regarding two-dimensional deviations based on an ideal shape of the workpiece, an ideal shape of a surface of the cylinder, and a relative movement between the workpiece and the cylinder; and a processor configured to convert the first coordinate system to the second coordinate system; wherein