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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
发明人： 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分类号： G03F7/70033 , G03F7/70916 , H05G2/003 , H05G2/008
摘要： 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：US20210263422A1
公开(公告)日：2021-08-26
申请号：US17277027
申请日：2019-08-12
摘要： Disclosed is a system and method for generating EUV radiation in which a laser is used in a multistage process to illuminate without altering a target material and then irradiate the target material to alter a target material with the illumination stage being used to determine the timing for firing during the irradiation stage or stages.
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公开(公告)号：US11846887B2
公开(公告)日：2023-12-19
申请号：US17715641
申请日：2022-04-07
发明人： 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分类号： G03F7/00
CPC分类号： G03F7/70166 , G03F7/70033 , G03F7/70883 , G03F7/70916 , G03F7/70925
摘要： 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：US10955749B2
公开(公告)日：2021-03-23
申请号：US16469689
申请日：2018-01-05
发明人： Dzmitry Labetski , Christianus Wilhelmus Johannes Berendsen , Rui Miguel Duarte Rodriges 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, IV , Henricus Gerardus Tegenbosch , Chunguang Xia
摘要： 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：US20200344868A1
公开(公告)日：2020-10-29
申请号：US16756185
申请日：2018-10-19
发明人： Michael Anthony Purvis , Klaus Martin Hummler , Chengyuan Ding , Robert Jay Rafac , Igor Vladimirovich Fomenkov
摘要： An amplified optical beam is provided to a region that receives a target including target material, an interaction between the amplified optical beam and the target converting at least some of the target material from a first form to a second form to form a light-emitting plasma; first data comprising information related to the amplified optical beam is accessed; second data comprising information related to the light-emitting plasma is accessed; and an amount of the target material converted from the first form to the second form is determined. The determination is based on at least the first data and the second data, and the second form of the target material is less dense than the first form of the target material.
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公开(公告)号：US20220192000A1
公开(公告)日：2022-06-16
申请号：US17433007
申请日：2020-03-02
摘要： Disclosed is an apparatus and a method in which multiple, e.g., two or more pulses from a single laser source are applied to source material prior to application of a main ionizing pulse in which the multiple pulses are generated by a common laser source. The first pulse is directed towards the source material when the source material is at a first position and the second pulse is directed towards the source material when the source material is at a second position.
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公开(公告)号：US11266002B2
公开(公告)日：2022-03-01
申请号：US16756185
申请日：2018-10-19
发明人： Michael Anthony Purvis , Klaus Martin Hummler , Chengyuan Ding , Robert Jay Rafac , Igor Vladimirovich Fomenkov
摘要： An amplified optical beam is provided to a region that receives a target including target material, an interaction between the amplified optical beam and the target converting at least some of the target material from a first form to a second form to form a light-emitting plasma; first data comprising information related to the amplified optical beam is accessed; second data comprising information related to the light-emitting plasma is accessed; and an amount of the target material converted from the first form to the second form is determined. The determination is based on at least the first data and the second data, and the second form of the target material is less dense than the first form of the target material.
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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
发明人： 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分类号： G03F7/20
摘要： 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：US20180081280A1
公开(公告)日：2018-03-22
申请号：US15270072
申请日：2016-09-20
发明人： Alexander Anthony Schafgans , Igor Vladimirovich Fomenkov , Yezheng Tao , Rostislav Rokitski , Robert Jay Rafac , Daniel John William Brown , Cory Alan Stinson
摘要： An optical source for an extreme ultraviolet (EUV) photolithography tool includes a light-generation system including a light-generation module; an optical amplifier including a gain medium associated with a gain band, the gain medium configured to amplify light having a wavelength in the gain band; and a wavelength-based optical filter system on a beam path between the light-generation module and the optical amplifier, the wavelength-based optical filter system including at least one optical element configured to allow light having a wavelength in a first set of wavelengths to propagate on the beam path and to remove light having a wavelength in a second set of wavelengths from the beam path, the first set of wavelengths and the second set of wavelengths including different wavelengths in the gain band of the optical amplifier.
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公开(公告)号：US09462668B2
公开(公告)日：2016-10-04
申请号：US14874164
申请日：2015-10-02
发明人： Yezheng Tao , Robert Jay Rafac , Igor Vladimirovich Fomenkov , Daniel John William Brown , Daniel James Golich
摘要： Techniques for forming a target and for producing extreme ultraviolet light include releasing an initial target material toward a target location, the target material including a material that emits extreme ultraviolet (EUV) light when converted to plasma; directing a first amplified light beam toward the initial target material, the first amplified light beam having an energy sufficient to form a collection of pieces of target material from the initial target material, each of the pieces being smaller than the initial target material and being spatially distributed throughout a hemisphere shaped volume; and directing a second amplified light beam toward the collection of pieces to convert the pieces of target material to plasma that emits EUV light.
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