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公开(公告)号:US20240160109A1
公开(公告)日:2024-05-16
申请号:US18508987
申请日:2023-11-14
Applicant: ASML Netherlands B.V.
Inventor: Yue Ma , Antonius Theodorus Wilhelmus Kempen , Klaus Martin Hummler , Johannes Hubertus Josephina Moors , Jeroen Hubert Rommers , Hubertus Johannes Van De Wiel , Andrew David Laforge , Fernando Brizuela , Rob Carlo Wieggers , Umesh Prasad Gomes , Elena Nedanovska , Celal Korkmaz , Alexander Downn Kim , Rui Miguel Duarte Rodrigues Nunes , Hendrikus Alphonsus Ludovicus Van Dijck , William Peter Van Drent , Peter Gerardus Jonkers , Qiushi Zhu , Parham Yaghoobi , Jan Steven Christiaan Westerlaken , Martinus Hendrikus Antonius Leenders , Alexander Igorevich Ershov , Igor Vladimirovich Fomenkov , Fei Liu , Johannes Henricus Wilhelmus Jacobs , Alexey Sergeevich Kuznetsov
IPC: G03F7/00
CPC classification number: G03F7/70166 , G03F7/70033 , G03F7/70883 , G03F7/70916 , G03F7/70925
Abstract: Degradation of the reflectivity of one or more reflective optical elements in a system for generating EUV radiation is reduced by the controlled introduction of a gas into a vacuum chamber containing the optical element. The gas may be added to the flow of another gas such as hydrogen or alternated with the introduction of hydrogen radicals.
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公开(公告)号:US20230279974A1
公开(公告)日:2023-09-07
申请号:US18010312
申请日:2021-07-13
Applicant: ASML Netherlands B.V.
Inventor: Benjamin Andrew Sams , Dietmar Uwe Herbert Trees , Vikas Giridhar Telkar , Alexander Igorevich Ershov , Theodorus Wilhelmus Driessen , Serkan Kincal
IPC: F16L17/02
Abstract: A target material supply apparatus includes: first and second fluid flow components (1122, 1126) that define an axial flow path when joined together, in which the axial flow path is between a source of target material fluid and a nozzle supply apparatus; and a coupling apparatus configured to seal the joint between the first and second fluid flow components. The coupling apparatus includes a gasket (1105) having an annular shape defining an inner opening that is a part of the axial flow path when seated and sealed. When the gasket is seated between the first and second fluid flow components to thereby seal the joint formed by attaching the first and second fluid flow components, pressure applied to the gasket from target material fluid traversing the gasket inner opening along the axial flow path improves the hermetic function of the seal at the joint. Optionally, a functional insert like e.g. a flow restrictor (1160) can be seated in the gasket.
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公开(公告)号:US20220291591A1
公开(公告)日:2022-09-15
申请号:US17715641
申请日:2022-04-07
Applicant: ASML Netherlands B.V.
Inventor: Yue Ma , Antonius Theodorus Wilhelmus Kempen , Klaus Martin Hummler , Johannes Hubertus Josephina Moors , Jeroen Hubert Rommers , Hubertus Johannes Van De Wiel , Andrew David Laforge , Fernando Brizuela , Rob Carlo Wieggers , Umesh Prasad Gomes , Elena Nedanovska , Celal Korkmaz , Alexander Downn Kim , Rui Miguel Duarte Rodrigues Nunes , Hendrikus Alphonsus Ludovicus Van Dijck , William Peter Van Drent , Peter Gerardus Jonkers , Qiushi Zhu , Parham Yaghoobi , Jan Steven Christiaan Westerlaken , Martinus Hendrikus Antonius Leenders , Alexander Igorevich Ershov , Igor Vladimirovich Fomenkov , Fei Liu , Johannes Henricus Wilhelmus Jacobs , Alexey Sergeevich Kuznetsov
IPC: G03F7/20
Abstract: Degradation of the reflectivity of one or more reflective optical elements in a system for generating EUV radiation is reduced by the controlled introduction of a gas into a vacuum chamber containing the optical element. The gas may be added to the flow of another gas such as hydrogen or alternated with the introduction of hydrogen radicals.
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公开(公告)号:US11340532B2
公开(公告)日:2022-05-24
申请号:US16977360
申请日:2019-02-28
Applicant: ASML Netherlands B.V.
Inventor: Yue Ma , Antonius Theodorus Wilhelmus Kempen , Klaus Martin Hummler , Johannes Hubertus Josephina Moors , Jeroen Hubert Rommers , Hubertus Johannes Van De Wiel , Andrew David Laforge , Fernando Brizuela , Rob Carlo Wieggers , Umesh Prasad Gomes , Elena Nedanovska , Celal Korkmaz , Alexander Downn Kim , Rui Miguel Duarte Rodrigues Nunes , Hendrikus Alphonsus Ludovicus Van Dijck , William Peter Van Drent , Peter Gerardus Jonkers , Qiushi Zhu , Parham Yaghoobi , Jan Steven Christiaan Westerlaken , Martinus Hendrikus Antonius Leenders , Alexander Igorevich Ershov , Igor Vladimirovich Fomenkov , Fei Liu , Johannes Henricus Wilhelmus Jacobs , Alexey Sergeevich Kuznetsov
IPC: G03F7/20
Abstract: Degradation of the reflectivity of one or more reflective optical elements in a system (SO) for generating EUV radiation is reduced by the controlled introduction of a gas into a vacuum chamber (26) containing the optical element. The gas may be added to the flow of another gas such as hydrogen or alternated with the introduction of hydrogen radicals.
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公开(公告)号:US20170181258A1
公开(公告)日:2017-06-22
申请号:US14975436
申请日:2015-12-18
Applicant: ASML Netherlands B.V.
Inventor: Alexander Igorevich Ershov
IPC: H05G2/00
Abstract: A method and apparatus for controlling a dose of extreme ultraviolet (EUV) radiation generated by a laser produced plasma (LPP) EUV light source. In one embodiment, a running total of the EUV energy generated over a predetermined number of laser pulses is measured; once that number of pulses is exceeded, the energy from the pulse immediately preceding the most recent predetermined number of pulses is dropped from the running total, so that the running total is from the most recent predetermined number of pulses. If the running total of the EUV energy exceeds a target dose, the next pulse is caused to not hit a droplet. This avoids the unwanted side effects of various prior art solutions, such as needing to miss many droplets in a row, or requiring the laser pulses to be shortened or reduced in power as in other prior art solutions.
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公开(公告)号:US20240292510A1
公开(公告)日:2024-08-29
申请号:US18571490
申请日:2022-06-02
Applicant: ASML Netherlands B.V.
Inventor: Alexander Igorevich Ershov , Theodorus Wilhelmus Driessen , Dietmar Uwe Herbert Trees , Vikas Giridhar Telkar
IPC: H05G2/00
Abstract: Apparatus for and method of accelerating droplets used to generate EUV radiation that comprise an arrangement producing a laser beam directed to an irradiation region and a droplet source. The droplet source includes a fluid exiting a nozzle (200) in a stream that breaks up into droplets that then undergo coalescence. A gas provided for the purpose of accelerating the droplets is caused to flow past the nozzle in a streamwise direction.
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公开(公告)号:US20210109452A1
公开(公告)日:2021-04-15
申请号:US16977360
申请日:2019-02-28
Applicant: ASML Netherlands B.V.
Inventor: Yue Ma , Antonius Theodorus Wilhelmus Kempen , Klaus Martin Hummler , Johannes Hubertus Josephina Moors , Jeroen Hubert Rommers , Hubertus Johannes Van De Wiel , Andrew David Laforge , Fernando Brizuela , Rob Carlo Wieggers , Umesh Prasad Gomes , Elena Nedanovska , Celal Korkmaz , Alexander Downn Kim , Rui Miguel Duarte Rodrigues Nunes , Hendrikus Alphonsus Ludovicus Van Dijck , William Peter Van Drent , Peter Gerardus Jonkers , Qiushi Zhu , Parham Yaghoobi , Jan Steven Christiaan Westerlaken , Martinus Hendrikus Antonius Leenders , Alexander Igorevich Ershov , Igor Vladimirovich Fomenkov , Fei Liu , Johannes Henricus Wilhelmus Jacobs , Alexey Sergeevich Kuznetsov
IPC: G03F7/20
Abstract: Degradation of the reflectivity of one or more reflective optical elements in a system (SO) for generating EUV radiation is reduced by the controlled introduction of a gas into a vacuum chamber (26) containing the optical element. The gas may be added to the flow of another gas such as hydrogen or alternated with the introduction of hydrogen radicals.
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公开(公告)号:US10681795B2
公开(公告)日:2020-06-09
申请号:US16274378
申请日:2019-02-13
Applicant: ASML Netherlands B.V.
Inventor: Alexander Igorevich Ershov , David Evans , Matthew Graham
Abstract: A device and method are disclosed in which a source material delivery system can be reoriented so that the path of the source material is not directly towards an irradiation region in operating conditions in which the path is expected to be unpredictable. A shroud provided to protect the flow of source material from being disrupted is segmented so with one part of the shroud being movable with respect to another part of the shroud so that the movable part can avoid interfering with the path of the source material when it is not directly towards the irradiation region.
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公开(公告)号:US11822252B2
公开(公告)日:2023-11-21
申请号:US17155951
申请日:2021-01-22
Applicant: ASML NETHERLANDS B.V.
Inventor: Dzmitry Labetski , Christianus Wilhelmus Johannes Berendsen , Rui Miguel Duarte Rodreigues Nunes , Alexander Igorevich Ershov , Kornelis Frits Feenstra , Igor Vladimirovich Fomenkov , Klaus Martin Hummler , Arun Johnkadaksham , Matthias Kraushaar , Andrew David Laforge , Marc Guy Langlois , Maksim Loginov , Yue Ma , Seyedmohammad Mojab , Kerim Nadir , Alexander Shatalov , John Tom Stewart , Henricus Gerardus Tegenbosch , Chunguang Xia
CPC classification number: G03F7/70033 , G03F7/70916 , H05G2/003 , H05G2/008
Abstract: An extreme ultraviolet radiation (EUV) source, including: a vessel having an inner vessel wall and an intermediate focus (IF) region; an EUV collector disposed inside the vessel, the EUV collector including a reflective surface configured to reflect EUV radiation toward the intermediate focus region, the reflective surface configured to directionally face the IF region of the vessel; a showerhead disposed along at least a portion of the inner vessel wall, the showerhead including a plurality of nozzles configured to introduce gas into the vessel; and one or more exhausts configured to remove gas introduced into the vessel, the one or more exhausts being oriented along at least a portion of the inner vessel wall so that the gas is caused to flow away from the EUV collector.
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公开(公告)号:US11690159B2
公开(公告)日:2023-06-27
申请号:US17284060
申请日:2019-10-25
Applicant: ASML Netherlands B.V.
Inventor: Bob Rollinger , Georgiy Olegovich Vaschenko , Chirag Rajyaguru , Alexander Igorevich Ershov , Joshua Mark Lukens , Mathew Cheeran Abraham
IPC: H05G2/00
CPC classification number: H05G2/006
Abstract: Disclosed is a system for generating EUV radiation in which current flowing through target material in the orifice 320 of a nozzle in a droplet generator is controlled by providing alternate lower impedance paths for the current and/or by limiting a high frequency component of a drive signal applied to the droplet generator.
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