公开(公告)号：US20230112447A1

公开(公告)日：2023-04-13

申请号：US17910752

申请日：2021-03-09

Applicant: ASML Netherlands B.V.

Inventor： Weiming REN ,  Yongxin WANG

IPC: H01J37/244 ,  G01N23/2251 ,  G01N23/203 ,  G01N23/2206 ,  H01J37/10 ,  H01J37/147

Abstract: Systems and methods of observing a sample using an electron beam apparatus are disclosed. The electron beam apparatus comprises an electron source configured to generate a primary electron beam along a primary optical axis, and a first electron detector having a first detection layer substantially parallel to the primary optical axis and configured to detect a first portion of a plurality of signal electrons generated from a probe spot on a sample. The method may comprise generating a plurality of signal electrons and detecting the signal electrons using the first electron detector substantially parallel to the primary optical axis of the primary electron beam. A method of configuring an electrostatic element or a magnetic element to detect backscattered electrons may include disposing an electron detector on an inner surface of the electrostatic or magnetic element and depositing a conducting layer on the inner surface of the electron detector.

公开(公告)号：US11621142B2

公开(公告)日：2023-04-04

申请号：US16992058

申请日：2020-08-12

Applicant: ASML Netherlands B.V.

Inventor： Marcel Koenraad Marie Baggen ,  Peter Paul Hempenius ,  Maarten Frans Janus Kremers ,  Robertus Jacobus Theodorus Van Kempen ,  Sven Antoin Johan Hol ,  Henricus Martinus Johannes Van De Groes ,  Johannes Hubertus Antonius Van De Rijdt ,  Niels Johannes Maria Bosch ,  Maarten Hartger Kimman

IPC: H01J37/20 ,  H01J37/28 ,  H01L21/66

Abstract: An electron beam apparatus is provided. The apparatus comprises an e-beam source configured to generate an electron beam, a first part configured to support a substrate, the first part comprising an object table for supporting the substrate, the first part further comprising a short stroke actuator system for actuating the object table relative to the e-beam source, the short stroke actuator system comprising a short stroke forcer. The apparatus further comprises a second part configured to movably support the first part and a long stroke actuator system configured to actuate movement of the first part with respect to the second part, the long stroke actuator system comprising a long stroke forcer, wherein the short stroke forcer and/or the long stroke forcer is configured to be switched off while the electron beam is projected onto the substrate.

公开(公告)号：US11614690B2

公开(公告)日：2023-03-28

申请号：US16478489

申请日：2018-01-24

Applicant: ASML NETHERLANDS B.V.

Inventor： Mu Feng ,  Mir Farrokh Shayegan Salek ,  Dianwen Zhu ,  Leiwu Zheng ,  Rafael C. Howell ,  Jen-Shiang Wang

IPC: G05B19/418 ,  G03F7/20

Abstract: Methods of constructing a process model for simulating a characteristic of a product of lithography from patterns produced under different processing conditions. The methods use a deviation between the variation of the simulated characteristic and the variation of the measured characteristic to adjust a parameter of the process model.

公开(公告)号：US11614416B2

公开(公告)日：2023-03-28

申请号：US16655140

申请日：2019-10-16

Applicant: ASML Netherlands B.V.

Inventor： Xuerang Hu ,  Xinan Luo ,  Qingpo Xi ,  Xuedong Liu ,  Weiming Ren

IPC: G01N23/225 ,  G01N21/95 ,  H01J37/244 ,  H01J37/32

Abstract: An improved charged particle beam inspection apparatus, and more particularly, a particle beam inspection apparatus including an improved alignment mechanism is disclosed. An improved charged particle beam inspection apparatus may include a second electron detection device to generate one or more images of one or more beam spots of the plurality of secondary electron beams during the alignment mode. The beam spot image may be used to determine the alignment characteristics of one or more of the plurality of secondary electron beams and adjust a configuration of a secondary electron projection system.

公开(公告)号：US20230091241A1

公开(公告)日：2023-03-23

申请号：US17909223

申请日：2021-02-24

Applicant: ASML NETHERLANDS B.V.

Inventor： Vitaliy PROSYENTSOV ,  Yongfeng NI

IPC: G02F1/35 ,  G02F1/365 ,  G03F7/20

Abstract: An assembly including a non-linear element configured for generating broadband radiation from input radiation coupled into the non-linear element. The assembly further includes an optical element positioned downstream of the non-linear element configured to reflect a fraction of the broadband radiation back into the non-linear element. The non-linear element can be a nonlinear fiber, such as a hollow-core photonic crystal fiber (HC-PCF).

公开(公告)号：US20230076218A1

公开(公告)日：2023-03-09

申请号：US17799019

申请日：2021-02-18

Applicant: ASML NETHERLANDS B.V.

Inventor： Koenraad VAN INGEN SCHENAU ,  Abraham SLACHTER ,  Vadim Yourievich TIMOSHKOV ,  Marleen KOOIMAN ,  Marie-Claire VAN LARE ,  Hermanus Adrianus DILLEN ,  Stefan HUNSCHE ,  Luis Alberto Colina Sant COLINA ,  Aiqin JIANG ,  Fuming WANG ,  Sudharshanan RAGHUNATHAN

IPC: G03F7/20

Abstract: Methods related to improving a simulation processes and solutions (e.g., retargeted patterns) associated with manufacturing of a chip. A method includes obtaining a plurality of dose-focus settings, and a reference distribution based on measured values of a characteristic of a printed pattern associated with each setting of the plurality of dose-focus settings. The method further includes, based on an adjustment model and the plurality of dose-focus settings, determining a probability density function (PDF) of the characteristic such that an error between the PDF and the reference distribution is reduced. The PDF can be a function of the adjustment model and variance associated with dose, the adjustment model being configured to change a proportion of non-linear dose sensitivity contribution to the PDF. A process window can be adjusted based on the determined PDF of the characteristic.

公开(公告)号：US20230076185A1

公开(公告)日：2023-03-09

申请号：US17799806

申请日：2021-01-26

Applicant: ASML NETHERLANDS B.V.

Inventor： Maialen LARRANAGA ,  Dimira GKOROU ,  Alexander YPMA

IPC: G05B19/418

Abstract: A method including: determining a sequence of states of an object, the states determined based on processing information associated with the object, wherein the sequence of states includes one or more future states of the object; determining, based on at least one of the states within the sequence of states and the one or more future states, a process metric associated with the object, the process metric including an indication of whether processing requirements for the object are satisfied for individual states in the sequence of states; and initiating an adjustment to processing based on (1) at least one of the states and the one or more future states and (2) the process metric, the adjustment configured to enhance the process metric for the individual states in the sequence of states such that final processing requirements for the object are satisfied.

公开(公告)号：US20230063156A1

公开(公告)日：2023-03-02

申请号：US17794897

申请日：2020-12-24

Applicant: ASML Holding N.V. ,  ASML Netherlands B.V.

Inventor： Ronald Peter ALBRIGHT ,  Kursat BAL ,  Vadim Yevgenyevich BANINE ,  Richard Joseph BRULS ,  Sjoerd Frans DE VRIES ,  Olav Waldemar Vladimir FRIJNS ,  Yang-Shan HUANG ,  Zhuangxiong HUANG ,  Johannes Henricus Wilhelmus JACOBS ,  Johannes Hubertus Josephina MOORS ,  Georgi Nanchev NENCHEV ,  Andrey NIKIPELOV ,  Thomas Maarten RAASVELD ,  Manish RANJAN ,  Edwin TE SLIGTE ,  Karl Robert UMSTADTER ,  Eray UZGÖREN ,  Marcus Adrianus VAN DE KERKHOF ,  Parham YAGHOOBI

IPC: G03F7/20

Abstract: An apparatus comprising: a radiation receiving apparatus provided with an opening operable to receive radiation from a radiation source through the opening; wherein the radiation receiving apparatus comprises a deflection apparatus arranged to change a trajectory of a particle through the opening arriving at the radiation receiving apparatus.

公开(公告)号：US20230061967A1

公开(公告)日：2023-03-02

申请号：US17793726

申请日：2020-12-28

Applicant: ASML NETHERLANDS B.V.

Inventor： Erwin John VAN ZWET

IPC: G03F7/20

Abstract: Method of exposing a substrate by a patterned radiation beam, comprising: —providing a radiation beam; —imparting the radiation beam by an array of individually controllable elements; —generating, from the radiation beam, a patterned radiation beam, by tilting the individually controllable elements between different positions about a tilting axis; —projecting the patterned radiation beam towards a substrate; —scanning a substrate across the patterned radiation beam in a scanning direction so as to expose the substrate to the patterned radiation beam, whereby the tilting axis of the individually controllable elements is substantially perpendicular to the scanning direction.

公开(公告)号：US11594395B2

公开(公告)日：2023-02-28

申请号：US17049329

申请日：2019-03-21

Applicant: ASML Netherlands B.V.

Inventor： Yongxin Wang ,  Zhonghua Dong

IPC: H01J37/244 ,  H01L27/146

Abstract: Detectors and detection systems are disclosed. According to certain embodiments, a detector comprises a substrate comprising a plurality of sensing elements including a first sensing element and a second sensing element, wherein at least the first sensing element is formed in a triangular shape. The detector may include a switching region configured to connect the first sensing 5 element and the second sensing element. There may also be provided a plurality of sections including a first section connecting a first plurality of sensing elements to a first output and a second section connecting a second plurality of sensing elements to a second output. The section may be provided in a hexagonal shape.