公开(公告)号：US20220171295A1

公开(公告)日：2022-06-02

申请号：US17441353

申请日：2020-03-05

Applicant: ASML NETHERLANDS B.V.

Inventor： Rowin MEIJERINK ,  Putra SAPUTRA ,  Pieter Gerardus Jacobus SMORENBERG ,  Theo Wilhelmus Maria THIJSSEN ,  Khalid ELBATTAY ,  Ma Su Su HLAING ,  Paul DERWIN ,  BO ZHONG ,  Masaya KOMATSU

IPC: G03F7/20

Abstract: A method for controlling a lithographic apparatus configured to pattern an exposure field on a substrate including at least a sub-field, the method including: obtaining an initial spatial profile associated with a spatial variation of a performance parameter associated with a layer on the substrate across at least the sub-field of the exposure field; and decomposing the initial spatial profile into at least a first component spatial profile for controlling a lithographic apparatus at a first spatial scale and a second component spatial profile for controlling the lithographic apparatus at a second spatial scale associated with a size of the sub-field, wherein the decomposing includes co-optimizing the first and second component spatial profiles based on correcting the spatial variation of the performance parameter across the sub-field.

公开(公告)号：US20230288817A1

公开(公告)日：2023-09-14

申请号：US18196432

申请日：2023-05-12

Applicant: ASML NETHERLANDS B.V.

Inventor： Rowin MEIJERINK ,  Putra SAPUTRA ,  Pieter Gerardus Jacobus SMORENBERG ,  Theo Wilhelmus Maria THIJSSEN ,  Khalid ELBATTAY ,  Ma Su Su HLAING ,  Paul DERWIN ,  Bo ZHONG ,  Masaya KOMATSU

IPC: G03F7/20

CPC classification number: G03F7/70633 ,  G03F7/70258 ,  G03F7/70725

Abstract: A method for controlling a lithographic apparatus configured to pattern an exposure field on a substrate including at least a sub-field, the method including: obtaining an initial spatial profile associated with a spatial variation of a performance parameter associated with a layer on the substrate across at least the sub-field of the exposure field; and decomposing the initial spatial profile into at least a first component spatial profile for controlling a lithographic apparatus at a first spatial scale and a second component spatial profile for controlling the lithographic apparatus at a second spatial scale associated with a size of the sub-field, wherein the decomposing includes co-optimizing the first and second component spatial profiles based on correcting the spatial variation of the performance parameter across the sub-field.

公开(公告)号：US20220334499A1

公开(公告)日：2022-10-20

申请号：US17639631

申请日：2020-08-06

Applicant: ASML NETHERLANDS B.V.

Inventor： Jacob Fredrik Friso KLINKHAMER ,  Valerio ALTINI ,  Hans Erik KATTOUW ,  Theo Wilhelmus Maria THIJSSEN

IPC: G03F7/20

Abstract: A method for determining a correction for control of a lithographic process for exposing a pattern on an exposure field using a lithographic apparatus. The method including obtaining a spatial profile describing spatial variation of a performance parameter across at least a portion of the exposure field and co-determining control profiles for the spatial profile to minimize error in the performance parameter while ensuring a minimum contrast quality. The co-determined control profiles include at least a stage control profile for control of a stage arrangement of the lithographic apparatus and an optical element (e.g., lens) manipulator control profile for control of an optical element manipulator of the lithographic apparatus, the manipulator operable to perform a correction for at least magnification in a direction perpendicular to the substrate plane.