公开(公告)号：US10996176B2

公开(公告)日：2021-05-04

申请号：US16905629

申请日：2020-06-18

Applicant: ASML Netherlands B.V.

Inventor： Wouter Lodewijk Elings ,  Franciscus Bernardus Maria Van Bilsen ,  Christianus Gerardus Maria De Mol ,  Everhardus Cornelis Mos ,  Hoite Pieter Theodoor Tolsma ,  Peter Ten Berge ,  Paul Jacques Van Wijnen ,  Leonardus Henricus Marie Verstappen ,  Gerald Dicker ,  Reiner Maria Jungblut ,  Chung-Hsun Li

IPC: G01N21/95 ,  G01B11/14 ,  G01B11/02 ,  G01N21/956 ,  G03F7/20 ,  H01L21/66 ,  G05B19/418 ,  G01B11/00 ,  G01B11/26

Abstract: In the measurement of properties of a wafer substrate, such as Critical Dimension or overlay a sampling plan is produced defined for measuring a property of a substrate, wherein the sampling plan comprises a plurality of sub-sampling plans. The sampling plan may be constrained to a predetermined fixed number of measurement points and is used to control an inspection apparatus to perform a plurality of measurements of the property of a plurality of substrates using different sub-sampling plans for respective substrates, optionally, the results are stacked to at least partially recompose the measurement results according to the sample plan.