Addressing layout retargeting shortfalls

A computer program product comprising a computer readable storage medium having program instructions embodied therewith, the program instructions executable by a processor to cause the processor to:

• allow an original design shape in the layout to be simulated by process simulation to form process simulation contours;
• fit a polygon to the process simulation contours to form a fitted simulated shape;
• compare the fitted simulated shape and the original design shape;
• and
• determine whether the fitted simulated shape violates a set of design rules in response to detecting that the fitted simulated shape differs from the original design shape.

An apparatus comprising:

• a memory;
• and
• at least one processor coupled to the memory and operative to perform the steps of:
• allowing an original design shape in the layout to be simulated by process simulation to form process simulation contours;
• fitting a polygon to the process simulation contours to form a fitted simulated shape;
• comparing the fitted simulated shape and the original design shape;
• and
• determining whether the fitted simulated shape violates a set of design rules in response to detecting that the fitted simulated shape differs from the original design shape.