Patent ID: 11940739
Assignee: ASML NETHERLANDS B.V.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 18:
19. A metrology system comprising:
an array comprising a plurality of array elements, wherein each array element of the plurality of array elements is configured to be aligned with a corresponding field of a plurality of fields, and wherein each array element comprises:
an illumination optical system configured to illuminate a corresponding target of a plurality of targets, wherein the corresponding target is disposed at the corresponding field; and
a detection optical system comprising:
at least one lens configured to direct a portion of illumination scattered from the corresponding target; and
a detection optical sensor configured to receive the directed portion of illumination scattered from the corresponding target and to generate information associated with the illumination scattered from the corresponding target; and

a computational imaging processor configured to:
communicate with the plurality of array elements;
receive aberration information of the at least one lens and generated image information; and
adjust the image information based on the aberration information.