Patent ID: 11966168
Assignee: ASML NETHERLANDS B.V.
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G

Claim 7:
8. A computer program product comprising a non-transitory computer-readable medium comprising computer-readable instructions therein, the instructions, when executed by a computer system, configured to cause the computer system to at least:
for a pattern in one or more images of a substrate or substrates after a step in a device manufacturing process, the pattern comprising a plurality of pattern elements and each pattern element having associated therewith a weighting that controls the extent to which the pattern element contributes to registration of the pattern, determine a variation in at least one pattern element using a model describing a patterning process for creating the pattern;
determine a weighting associated with the at least one pattern element based on the determined variation in the at least one pattern element; and
register, based on the weighting, the pattern relative to another pattern.