公开(公告)号：US08067756B2

公开(公告)日：2011-11-29

申请号：US12646075

申请日：2009-12-23

申请人： Yoshifumi Ueno ,  Georg Soumagne ,  Shinji Nagai ,  Akira Endo ,  Tatsuya Yanagida

发明人： Yoshifumi Ueno ,  Georg Soumagne ,  Shinji Nagai ,  Akira Endo ,  Tatsuya Yanagida

IPC分类号： H05G2/00 ,  G01J3/10

CPC分类号： H05G2/003 ,  H05G2/008

摘要： In an extreme ultraviolet light source apparatus generating an extreme ultraviolet light from a plasma generated by irradiating a target, which is a droplet D of molten Sn, with a laser light, and controlling the flow direction of ion generated at the generation of the extreme ultraviolet light by a magnetic field or an electric field, an ion collection cylinder 20 is arranged for collecting the ion, and ion collision surfaces Sa and Sb of the ion collection cylinder 20 are provided with or coated with Si, which is a metal whose sputtering rate with respect to the ion is less than one atom/ion.

摘要翻译： 在极紫外光源装置中，通过用激光照射作为熔融Sn的液滴D而产生的等离子体产生极紫外光，并且控制在产生极紫外光时产生的离子的流动方向 通过磁场或电场照射光，离子收集筒20被布置成用于收集离子，离子收集筒20的离子碰撞表面Sa和Sb设置有或涂覆有Si，溅射速率 相对于离子小于一个原子/离子。

公开(公告)号：US08471226B2

公开(公告)日：2013-06-25

申请号：US12547896

申请日：2009-08-26

申请人： Hiroshi Komori ,  Tatsuya Yanagida ,  Yoshifumi Ueno ,  Akira Sumitani ,  Akira Endo ,  Tsukasa Hori

发明人： Hiroshi Komori ,  Tatsuya Yanagida ,  Yoshifumi Ueno ,  Akira Sumitani ,  Akira Endo ,  Tsukasa Hori

IPC分类号： A61N5/06

CPC分类号： G21K5/00 ,  G03F7/70033 ,  G03F7/70916 ,  H05G2/003 ,  H05G2/005 ,  H05G2/008

摘要： An EUV (Extreme Ultra Violet) light source device ionizes a target material in an ionizer, and supplies the ionized target material to a point of generating a plasma. This reduces the generation of debris. The ionizer simultaneously irradiates laser beams of plural wavelengths corresponding to the excited level of tin on a target material to ionize the target material. The ionized target material is extracted from the ionizer with a high voltage applied from an ion beam extractor, and accelerated and supplied to a plasma generation chamber. When driver laser beam is irradiated on the ionized target material, a plasma is generated, thereby emitting EUV radiation.

摘要翻译： EUV（Extreme Ultra Violet）光源装置将离子发生器中的目标材料离子化，并将电离靶材材料提供到产生等离子体的点。 这减少了碎片的产生。 离子发生器同时将与激发的锡水平相对应的多个波长的激光束照射在目标材料上以电离目标材料。 电离目标材料从离子束提取器施加的高电压从电离器中提取，并被加速并提供给等离子体产生室。 当驱动激光束照射在电离靶材上时，产生等离子体，从而发射EUV辐射。

公开(公告)号：US20120097869A1

公开(公告)日：2012-04-26

申请号：US13274991

申请日：2011-10-17

申请人： Yoshifumi Ueno ,  Georg Soumagne ,  Shiniji Nagai ,  Akira Endo ,  Tatsuya Yanagida

发明人： Yoshifumi Ueno ,  Georg Soumagne ,  Shiniji Nagai ,  Akira Endo ,  Tatsuya Yanagida

IPC分类号： G01J3/10

CPC分类号： H05G2/003 ,  H05G2/008

摘要： In an extreme ultraviolet light source apparatus generating an extreme ultraviolet light from a plasma generated by irradiating a target, which is a droplet D of molten Sn, with a laser light, and controlling the flow direction of ion generated at the generation of the extreme ultraviolet light by a magnetic field or an electric field, an ion collection cylinder 20 is arranged for collecting the ion, and ion collision surfaces Sa and Sb of the ion collection cylinder 20 are provided with or coated with Si, which is a metal whose sputtering rate with respect to the ion is less than one atom/ion.

摘要翻译： 在极紫外光源装置中，通过用激光照射作为熔融Sn的液滴D而产生的等离子体产生极紫外光，并且控制在产生极紫外光时产生的离子的流动方向 通过磁场或电场照射光，离子收集筒20被布置成用于收集离子，离子收集筒20的离子碰撞表面Sa和Sb设置有或涂覆有Si，溅射速率 相对于离子小于一个原子/离子。

公开(公告)号：US20110101863A1

公开(公告)日：2011-05-05

申请号：US12547896

申请日：2009-08-26

申请人： Hiroshi Komori ,  Tatsuya Yanagida ,  Yoshifumi Ueno ,  Akira Sumitani ,  Akira Endo ,  Tsukasa Hori

发明人： Hiroshi Komori ,  Tatsuya Yanagida ,  Yoshifumi Ueno ,  Akira Sumitani ,  Akira Endo ,  Tsukasa Hori

IPC分类号： H01J7/00

CPC分类号： G21K5/00 ,  G03F7/70033 ,  G03F7/70916 ,  H05G2/003 ,  H05G2/005 ,  H05G2/008

摘要： An EUV (Extreme Ultra Violet) light source device ionizes a target material in an ionizer, and supplies the ionized target material to a point of generating a plasma. This reduces the generation of debris. The ionizer simultaneously irradiates laser beams of plural wavelengths corresponding to the excited level of tin on a target material to ionize the target material. The ionized target material is extracted from the ionizer with a high voltage applied from an ion beam extractor, and accelerated and supplied to a plasma generation chamber. When driver laser beam is irradiated on the ionized target material, a plasma is generated, thereby emitting EUV radiation.

摘要翻译： EUV（Extreme Ultra Violet）光源装置将离子发生器中的目标材料离子化，并将电离靶材材料提供到产生等离子体的点。 这减少了碎片的产生。 离子发生器同时将与激发的锡水平相对应的多个波长的激光束照射在目标材料上以电离目标材料。 电离目标材料从离子束提取器施加的高电压从电离器中提取，并被加速并提供给等离子体产生室。 当驱动激光束照射在电离靶材上时，产生等离子体，从而发射EUV辐射。

公开(公告)号：US08804778B2

公开(公告)日：2014-08-12

申请号：US12580523

申请日：2009-10-16

申请人： Osamu Wakabayashi ,  Akira Endo ,  Krzysztof Nowak ,  Takashi Suganuma ,  Masato Moriya

发明人： Osamu Wakabayashi ,  Akira Endo ,  Krzysztof Nowak ,  Takashi Suganuma ,  Masato Moriya

IPC分类号： H01S3/10

CPC分类号： H01S3/2316 ,  B82Y20/00 ,  G03F7/70033 ,  H01S3/0007 ,  H01S3/107 ,  H01S3/2232 ,  H01S3/235 ,  H01S5/02284 ,  H01S5/0654 ,  H01S5/06837 ,  H01S5/0687 ,  H01S5/141 ,  H01S5/3402 ,  H01S5/4012 ,  H01S5/4062 ,  H01S5/4087

摘要： An extreme ultraviolet light source apparatus comprises a laser apparatus having a master oscillator outputting one or more longitudinal-mode-laser lights, an amplifier with a molecular gas as an amplifying agency amplifying a longitudinal-mode laser light of which wavelength is included in one of amplifiable lines, and a controller adjusting the master oscillator so that the wavelength of the longitudinal-mode laser light outputted from the master oscillator is included in one of the amplifiable lines, the laser apparatus being used as a driver laser, wherein the laser apparatus irradiates a target material with a laser light for generating plasma, and the extreme ultraviolet light is emitted from the plasma and outputted from the extreme ultraviolet light source apparatus.

摘要翻译： 一种极紫外光源装置包括具有输出一个或多个纵模式激光灯的主振荡器的激光装置，具有分子气体的放大器作为放大器，放大其中包​​含波长的纵模式激光， 以及调节主振荡器的控制器，使得从主振荡器输出的纵模激光的波长包括在可放大线之一中，激光装置用作驱动激光器，其中激光装置照射 具有用于产生等离子体的激光的目标材料，并且从等离子体发射极紫外光并从极紫外光源装置输出。

公开(公告)号：US08476609B2

公开(公告)日：2013-07-02

申请号：US13306358

申请日：2011-11-29

申请人： Akira Endo ,  Krzysztof Nowak ,  Hideo Hoshino ,  Tatsuya Ariga ,  Masato Moriya ,  Osamu Wakabayashi

发明人： Akira Endo ,  Krzysztof Nowak ,  Hideo Hoshino ,  Tatsuya Ariga ,  Masato Moriya ,  Osamu Wakabayashi

IPC分类号： G02B26/02

CPC分类号： H05G2/003 ,  H01S3/005 ,  H01S3/0064 ,  H01S3/2316 ,  H05G2/008

摘要： An EUV light source of the present invention is capable of using a saturable absorber stably and continuously in a high heat load state. A saturable absorber (SA) device is disposed on a laser beam line to absorb feeble light, such as self-excited oscillation light, parasitic oscillation light or return light. SA gas from an SA gas cylinder and buffer gas from a buffer gas cylinder are mixed to be a mixed gas. The mixed gas is supplied to an SA gas cell via a supply pipeline, and absorbs the feeble light included in the laser beam. The mixed gas is exhausted via an exhaust pipeline, and is sent to a heat exchanger. The mixed gas, cooled down by a heat exchanger, is sent back to the SA gas cell by a circulation pump.

摘要翻译： 本发明的EUV光源能够在高热负荷状态下稳定且连续地使用饱和吸收体。 可饱和吸收体（SA）装置设置在激光束线上以吸收诸如自激振荡光，寄生振荡光或返回光的微弱光。 来自SA气瓶的SA气体和来自缓冲气瓶的缓冲气体混合成混合气体。 混合气体经由供给管路供给到SA气室，吸收激光束中包含的微弱光。 混合气体通过排气管道排出，并被送到热交换器。 由热交换器冷却的混合气体通过循环泵送回到SA气室。

公开(公告)号：US08481984B2

公开(公告)日：2013-07-09

申请号：US12482796

申请日：2009-06-11

申请人： Masato Moriya ,  Osamu Wakabayashi ,  Tamotsu Abe ,  Takashi Suganuma ,  Akira Endo ,  Akira Sumitani

发明人： Masato Moriya ,  Osamu Wakabayashi ,  Tamotsu Abe ,  Takashi Suganuma ,  Akira Endo ,  Akira Sumitani

IPC分类号： G21K5/00

摘要： An extreme ultraviolet light source apparatus using a spectrum purity filter capable of obtaining EUV light with high spectrum purity. The apparatus includes a chamber; a target supply unit for supplying a target material; a driver laser using a laser gas containing a carbon dioxide gas as a laser medium, for applying a laser beam to the target material to generate plasma; a collector mirror for collecting and outputting the extreme ultraviolet light radiated from the plasma; and a spectrum purity filter provided in an optical path of the extreme ultraviolet light, for transmitting the extreme ultraviolet light and reflecting the laser beam, the spectrum purity filter including a mesh having electrical conductivity and formed with an arrangement of apertures having a pitch not larger than a half of a shortest wavelength of the laser beam applied by the driver laser.

公开(公告)号：US07903715B2

公开(公告)日：2011-03-08

申请号：US12482824

申请日：2009-06-11

申请人： Krzysztof Nowak ,  Takashi Suganuma ,  Osamu Wakabayashi ,  Akira Endo

发明人： Krzysztof Nowak ,  Takashi Suganuma ,  Osamu Wakabayashi ,  Akira Endo

IPC分类号： H01S3/22

CPC分类号： H01S3/076 ,  G03F7/70025 ,  G03F7/70033 ,  H01S3/005 ,  H01S3/0971 ,  H01S3/115 ,  H01S3/2232 ,  H01S3/2316 ,  H01S3/2325 ,  H01S3/235 ,  H01S3/2375 ,  H01S5/141 ,  H01S5/4087

摘要： A slab type laser apparatus has a slab type gas laser medium part formed in a region defined by a pair of electrode flat plates oppositely disposed in parallel with each other in a space to be filled with a gas laser medium which is excited by high-frequency electric power. The apparatus includes an oscillator part including a pair of resonator mirrors oppositely disposed with a part of the gas laser medium part in between, and for amplifying a laser beam to have predetermined light intensity to emit the laser beam, and the amplifier part including a plurality of return mirrors oppositely disposed with a part of the gas laser medium part in between. The incident laser beam goes and returns plural times between the return mirrors, and the laser beam is amplified to have predetermined power.

摘要翻译： 平板型激光装置具有板状气体激光介质部，该平板型气体激光介质部形成在由一对电极平板限定的区域中，该对电极平板彼此平行配置，以填充由高频激发的气体激光介质 电力。 该装置包括：振荡器部分，包括一对谐振器反射镜，该谐振器反射镜与气体激光介质部分的一部分相对设置，并且用于放大激光束以具有预定的光强度以发射激光束，并且放大器部件包括多个 的反射镜与气体激光介质部分的一部分相对设置。 入射激光束在返回镜之间返回多次，激光束被放大成具有预定的功率。

公开(公告)号：US20100193710A1

公开(公告)日：2010-08-05

申请号：US12580523

申请日：2009-10-16

申请人： Osamu Wakabayashi ,  Akira Endo ,  Krzysztof Nowak ,  Takashi Suganuma ,  Masato Moriya

发明人： Osamu Wakabayashi ,  Akira Endo ,  Krzysztof Nowak ,  Takashi Suganuma ,  Masato Moriya

IPC分类号： H05G2/00 ,  H01S3/10 ,  H01S3/22 ,  H01S3/0941

CPC分类号： H01S3/2316 ,  B82Y20/00 ,  G03F7/70033 ,  H01S3/0007 ,  H01S3/107 ,  H01S3/2232 ,  H01S3/235 ,  H01S5/02284 ,  H01S5/0654 ,  H01S5/06837 ,  H01S5/0687 ,  H01S5/141 ,  H01S5/3402 ,  H01S5/4012 ,  H01S5/4062 ,  H01S5/4087

摘要： An extreme ultraviolet light source apparatus comprises a laser apparatus having a master oscillator outputting one or more longitudinal-mode-laser lights, an amplifier with a molecular gas as an amplifying agency amplifying a longitudinal-mode laser light of which wavelength is included in one of amplifiable lines, and a controller adjusting the master oscillator so that the wavelength of the longitudinal-mode laser light outputted from the master oscillator is included in one of the amplifiable lines, the laser apparatus being used as a driver laser, wherein the laser apparatus irradiates a target material with a laser light for generating plasma, and the extreme ultraviolet light is emitted from the plasma and outputted from the extreme ultraviolet light source apparatus.

摘要翻译： 一种极紫外光源装置包括具有输出一个或多个纵模式激光灯的主振荡器的激光装置，具有分子气体的放大器作为放大器，放大其中包​​含波长的纵模式激光， 以及调节主振荡器的控制器，使得从主振荡器输出的纵模激光的波长包括在可放大线之一中，激光装置用作驱动激光器，其中激光装置照射 具有用于产生等离子体的激光的目标材料，并且从等离子体发射极紫外光并从极紫外光源装置输出。

公开(公告)号：US08536551B2

公开(公告)日：2013-09-17

申请号：US12482796

申请日：2009-06-11

申请人： Masato Moriya ,  Osamu Wakabayashi ,  Tamotsu Abe ,  Takashi Suganuma ,  Akira Endo ,  Akira Sumitani

发明人： Masato Moriya ,  Osamu Wakabayashi ,  Tamotsu Abe ,  Takashi Suganuma ,  Akira Endo ,  Akira Sumitani

IPC分类号： G21K5/00

CPC分类号： G21K5/04 ,  G03F7/70191 ,  G03F7/70575 ,  G03F7/70858 ,  G03F7/70941 ,  G21K1/10 ,  H05G2/005 ,  H05G2/008

摘要： An extreme ultraviolet light source apparatus using a spectrum purity filter capable of obtaining EUV light with high spectrum purity. The apparatus includes a chamber; a target supply unit for supplying a target material; a driver laser using a laser gas containing a carbon dioxide gas as a laser medium, for applying a laser beam to the target material to generate plasma; a collector mirror for collecting and outputting the extreme ultraviolet light radiated from the plasma; and a spectrum purity filter provided in an optical path of the extreme ultraviolet light, for transmitting the extreme ultraviolet light and reflecting the laser beam, the spectrum purity filter including a mesh having electrical conductivity and formed with an arrangement of apertures having a pitch not larger than a half of a shortest wavelength of the laser beam applied by the driver laser.

摘要翻译： 一种使用能够获得高光谱纯度的EUV光的光谱纯度滤光片的极紫外光源装置。 该装置包括一个室; 用于提供目标材料的目标供应单元; 使用包含二氧化碳气体的激光气体作为激光介质的激光激光器，用于向目标材料施加激光以产生等离子体; 用于收集和输出从等离子体辐射的极紫外光的收集器反射镜; 以及设置在极紫外光的光路中的光谱纯度滤光片，用于透射极紫外光并反射激光束，光谱纯度滤光器包括具有导电性的网格，并且形成为具有间距不大的孔 超过由驱动器激光器施加的激光束的最短波长的一半。