A method for detection and scoring of hotspots in a design layout is
provided. A plurality of indices is derived for a plurality of positions
in the design layout. The plurality of indices comprises a first index
sensitive to energy exposure of the design layout, a second index
sensitive to process image formation, and a third index sensitive to mask
manufacturing error. The plurality of indices is then analyzed to
identify at least one hotspot in the design layout. The at least one
hotspot is then prioritized using an integrated hotspot scoring system.
The integrated hotspot scoring system prioritizes hotspots based on a
look-up table approach or an interpolation approach.