Automatic Collar Generation
The mask designer often has to create a dark field region which exactly follows the edge of the arrayed die. This can only be done after stepping and is often "hand drawn" The edge becomes extremely difficult to draw if the circuits are small and the array is staggered.
GDS-SR's collar generator uses boolean operations to find the outer "edge" of the array and produces a dark field polygon out to the edge of the mask.
In addition, the user can define multiple rectangular cutouts that will be filled with targets or mask labels.
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