公开(公告)号：US10545410B2

公开(公告)日：2020-01-28

申请号：US16076743

申请日：2017-02-07

Applicant: ASML NETHERLANDS B.V.

Inventor： Hakki Ergun Cekli ,  Masashi Ishibashi ,  Leon Paul Van Dijk ,  Richard Johannes Franciscus Van Haren ,  Xing Lan Liu ,  Reiner Maria Jungblut ,  Cedric Marc Affentauschegg ,  Ronald Henricus Johannes Otten

IPC: G03B27/42 ,  G03F7/20 ,  G03F9/00

Abstract: A lithographic process includes clamping a substrate onto a substrate support, measuring positions across the clamped substrate, and applying a pattern to the clamped substrate using the positions measured. A correction is applied to the positioning of the applied pattern in localized regions of the substrate, based on recognition of a warp-induced characteristic in the positions measured across the substrate. The correction may be generated by inferring one or more shape characteristics of the warped substrate using the measured positions and other information. Based on the one or more inferred shape characteristics, a clamping model is applied to simulate deformation of the warped substrate in response to clamping. A correction is calculated based on the simulated deformation.

公开(公告)号：US09753377B2

公开(公告)日：2017-09-05

申请号：US14420311

申请日：2013-06-27

Applicant: ASML Netherlands B.V.

Inventor： Hakki Ergun Cekli ,  Irina Lyulina ,  Manfred Gawein Tenner ,  Richard Johannes Franciscus Van Haren ,  Stefan Cornelis Theodorus Van Der Sanden

IPC: G03B27/32 ,  G03B27/74 ,  G03F7/20 ,  G03F9/00

CPC classification number: G03F7/70258 ,  G03F7/70483 ,  G03F7/70616 ,  G03F7/70633 ,  G03F9/7003 ,  G03F9/7019

Abstract: A deformation pattern recognition method including providing one or more deformation patterns, each deformation pattern being associated with a deformation of a substrate that may be caused by a processing device; transferring a first pattern to a substrate, the first pattern including at least N alignment marks, wherein each alignment mark is positioned at a respective predefined nominal position; processing the substrate; measuring a position of N alignment marks and determining an alignment mark displacement for the N alignment marks by comparing the respective nominal position with the respective measured position; fitting at least one deformation pattern to the measured alignment mark displacements; determining an accuracy value for each fitted deformation pattern, the accuracy value being representative of the accuracy of the corresponding fit; using the determined accuracy value, determining whether an associated deformation pattern is present.

公开(公告)号：US20150205213A1

公开(公告)日：2015-07-23

申请号：US14420311

申请日：2013-06-27

Applicant: ASML NETHERLANDS B.V.

Inventor： Hakki Ergun Cekli ,  Irina Lyulina ,  Manfred Gawein Tenner ,  Richard Johannes Franciscus Van Haren ,  Stefan Cornelis Theodorus Van Der Sanden

IPC: G03F7/20 ,  G03F9/00

CPC classification number: G03F7/70258 ,  G03F7/70483 ,  G03F7/70616 ,  G03F7/70633 ,  G03F9/7003 ,  G03F9/7019

Abstract: A deformation pattern recognition method including providing one or more deformation patterns, each deformation pattern being associated with a deformation of a substrate that may be caused by a processing device; transferring a first pattern to a substrate, the first pattern including at least N alignment marks, wherein each alignment mark is positioned at a respective predefined nominal position; processing the substrate; measuring a position of N alignment marks and determining an alignment mark displacement for the N alignment marks by comparing the respective nominal position with the respective measured position; fitting at least one deformation pattern to the measured alignment mark displacements; determining an accuracy value for each fitted deformation pattern, the accuracy value being representative of the accuracy of the corresponding fit; using the determined accuracy value, determining whether an associated deformation pattern is present.

Abstract translation: 一种变形图案识别方法，包括提供一个或多个变形图案，每个变形图案与可由处理装置引起的基板的变形相关联; 将第一图案转印到基板，所述第一图案至少包括N个对准标记，其中每个对准标记位于相应的预定标称位置; 处理基板; 通过将相应的标称位置与相应的测量位置进行比较来测量N个对准标记的位置并确定N个对准标记的对准标记位移; 将至少一个变形图案拟合到所测量的对准标记位移; 确定每个拟合变形模式的精度值，精度值代表相应拟合精度; 使用所确定的精度值，确定是否存在相关联的变形模式。