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1. 发明申请

US20110069733A1 REGENERATIVE RING RESONATOR 有权
标题翻译：再生环谐振器
公开(公告)号：US20110069733A1
公开(公告)日：2011-03-24
申请号：US12724681
申请日：2010-03-16
申请人： Hong Ye , Richard L. Sandstrom , Slava Rokitski , Daniel J.W. Brown , Robert J. Rafac
发明人： Hong Ye , Richard L. Sandstrom , Slava Rokitski , Daniel J.W. Brown , Robert J. Rafac
IPC分类号： H01S3/08
CPC分类号： H01S3/225 , H01S3/02 , H01S3/0804 , H01S3/0805 , H01S3/08059 , H01S3/08072 , H01S3/08081 , H01S3/0835 , H01S3/10092 , H01S3/1053 , H01S3/235 , H01S3/2366
摘要： A laser includes a regenerative ring resonator that includes a discharge chamber having electrodes and a gain medium between the electrodes for producing a laser beam; a partially-reflective optical coupler, and a beam modification optical system in the path of the laser beam. The beam modification optical system transversely expands a profile of the laser beam such that the near field laser beam profile uniformly fills each aperture within the laser and such that the regenerative ring resonator remains either conditionally stable or marginally unstable when operating the laser at powers that induce thermal lenses in optical elements inside the regenerative ring resonator.
摘要翻译：激光器包括再生环形谐振器，其包括具有电极的放电室和用于产生激光束的电极之间的增益介质; 部分反射光耦合器，以及激光束路径中的光束修改光学系统。光束修改光学系统横向扩展激光束的轮廓，使得近场激光束轮廓均匀地填充激光器内的每个孔径，使得再生环形谐振器在以诱导的功率操作激光器时保持条件稳定或边缘不稳定再生环形谐振器内的光学元件的热透镜。

2. 发明申请

US20090067468A1 Laser system 有权
标题翻译：激光系统
公开(公告)号：US20090067468A1
公开(公告)日：2009-03-12
申请号：US11980172
申请日：2007-10-30
申请人： Daniel J.W. Brown , William N. Partlo , Richard L. Sandstrom
发明人： Daniel J.W. Brown , William N. Partlo , Richard L. Sandstrom
IPC分类号： H01S3/22
CPC分类号： H01S3/2383 , G03F7/70583 , H01S3/0057 , H01S3/08036 , H01S3/08059 , H01S3/10092 , H01S3/225 , H01S3/2325
摘要： A method/apparatus may comprise a laser light source which may comprise a solid state seed laser system producing a seed laser output having a nominal center wavelength at a pulse repetition rate; a first and a second gas discharge laser amplifier gain medium each operating at a pulse repetition rate less than that of the seed laser system; a beam divider providing each of the respective first and second amplifier gain mediums with seed laser output pulses; a frequency converter modifying the nominal center wavelength of the output of the seed laser to essentially the nominal center wavelength of the amplifier gain medium; a beam combiner combining the outputs of the respective amplifier gain mediums to provide a light source output having the pulse repetition rate of the seed laser; a coherence buster operating on either or both of the output of the seed laser or amplifier gain mediums.
摘要翻译：方法/装置可以包括激光光源，其可以包括固态种子激光器系统，其产生具有脉冲重复率的标称中心波长的种子激光器输出; 第一和第二气体放电激光放大器增益介质，每个以比种子激光器系统的脉冲重复频率工作; 一个分束器，为每个相应的第一和第二放大器增益介质提供种子激光输出脉冲; 变频器将种子激光器的输出的标称中心波长修改为基本上放大器增益介质的标称中心波长; 组合各个放大器增益介质的输出以提供具有种子激光器的脉冲重复率的光源输出的光束组合器; 在种子激光器或放大器增益介质的输出中的任一个或两者上工作的相干致动器。

3. 发明申请

US20180020532A1 EUV LIGHT SOURCE WITH SUBSYSTEM(S) FOR MAINTAINING LPP DRIVE LASER OUTPUT DURING EUV NON-OUTPUT PERIODS 审中-公开
公开(公告)号：US20180020532A1
公开(公告)日：2018-01-18
申请号：US15208548
申请日：2016-07-12
申请人： William N. Partlo , Richard L. Sandstrom , Daniel J.W. Brown , Igor V. Fomenkov
发明人： William N. Partlo , Richard L. Sandstrom , Daniel J.W. Brown , Igor V. Fomenkov
IPC分类号： H05G2/00
摘要： A device is disclosed herein which may comprise a droplet generator producing droplets of target material; a sensor providing an intercept time signal when a droplet reaches a preselected location; a delay circuit coupled with said sensor, the delay circuit generating a trigger signal delayed from the intercept time signal; a laser source responsive to a trigger signal to produce a laser pulse; and a system controlling said delay circuit to provide a trigger signal delayed from the intercept time by a first delay time to generate a light pulse that is focused on a droplet and a trigger signal delayed from the intercept time by a second delay time to generate a light pulse which is not focused on a droplet.

4. 发明申请

US20120087386A1 LASER SYSTEM 有权
标题翻译：激光系统
公开(公告)号：US20120087386A1
公开(公告)日：2012-04-12
申请号：US12639339
申请日：2009-12-16
申请人： Daniel J.W. Brown , William N. Partlo , Richard L. Sandstrom
发明人： Daniel J.W. Brown , William N. Partlo , Richard L. Sandstrom
IPC分类号： H01S3/22 , H01S3/09
CPC分类号： G03F7/70341 , G03F7/70025 , G03F7/70041 , G03F7/7055
摘要： An apparatus/method may comprise a line narrowed pulsed lithography laser light source which may comprise: a seed pulse providing laser system which may comprise: a first pulsed seed laser producing seed pulses at a rate of X kHz; a second pulsed seed laser producing seed pulses at a rate of X kHz; an amplification system which may comprise: a first amplifier gain system which may comprise a first and a second pulsed gas discharge amplifier gain medium, each with a nominal center wavelength in the UV range, and each operating at ½X kHz on output pulses from the first seed laser; a second amplifier gain system which may comprise a first and a second pulsed amplifier gain medium, each with a nominal center wavelength in the UV range, and each operating at ½X kHz on output pulses from the second seed laser.
摘要翻译：一种装置/方法可以包括线窄的脉冲光刻激光光源，其可以包括：提供激光系统的种子脉冲，其可以包括：以X kHz的速率产生种子脉冲的第一脉冲种子激光器; 第二脉冲种子激光器以XkHz的速率产生种子脉冲; 放大系统，其可以包括：第一放大器增益系统，其可以包括第一和第二脉冲气体放电放大器增益介质，每个具有在UV范围内的标称中心波长，并且每个在来自第一个的输出脉冲上以1/2X kHz工作种子激光第二放大器增益系统，其可以包括第一和第二脉冲放大器增益介质，每个具有在UV范围内的标称中心波长，并且每个在来自第二种子激光器的输出脉冲上以1/2XkHz工作。

5. 发明申请

US20110235663A1 Method and System for Managing Light Source Operation 有权
标题翻译：光源操作管理方法与系统
公开(公告)号：US20110235663A1
公开(公告)日：2011-09-29
申请号：US12730506
申请日：2010-03-24
申请人： Robert P. Akins , Richard L. Sandstrom , Daniel J.W. Brown , Matthew R. Graham , Kevin W. Zhang , Patrick L. Nelissen
发明人： Robert P. Akins , Richard L. Sandstrom , Daniel J.W. Brown , Matthew R. Graham , Kevin W. Zhang , Patrick L. Nelissen
IPC分类号： H01S3/10
CPC分类号： H01S3/0014 , G03F7/70025 , G03F7/70533 , G03F7/70975 , H01S3/134 , H01S3/225
摘要： A laser light source experiencing an EOL condition, which might otherwise cause an unscheduled shutdown, is instead operated in a diminished capacity in one or more predetermined or calculated increments. Operating in such diminished capacity continues until the laser system can undergo appropriate maintenance either during a regularly scheduled shutdown or a newly scheduled shutdown. In the meantime, the diminished capacity of the laser system is accommodated by the utilization tool, as appropriate.
摘要翻译：经历EOL状态的激光光源（否则可能导致非计划关机）反而以一个或多个预定或计算的增量以减小的容量运行。在这种减少的能力下运行，直到激光系统在定期关机或新计划停机期间才能进行适当的维护。同时，适当的情况下，利用工具可以适应激光系统的能力下降。

6. 发明申请

US20090296758A1 Laser system 审中-公开
标题翻译：激光系统
公开(公告)号：US20090296758A1
公开(公告)日：2009-12-03
申请号：US11982217
申请日：2007-10-31
申请人： Daniel J.W. Brown , William N. Partlo , Richard L. Sandstrom
发明人： Daniel J.W. Brown , William N. Partlo , Richard L. Sandstrom
IPC分类号： H01S3/10 , H01S3/13
CPC分类号： G03F7/7055 , H01S3/225 , H01S3/2308
摘要： An apparatus/method may comprise a line narrowed pulsed lithography laser light source which may comprise: a seed pulse providing laser system which may comprise: a first pulsed seed laser producing seed pulses at a rate of X kHz; a second pulsed seed laser producing seed pulses at a rate of X kHz; an amplification system which may comprise: a first amplifier gain system which may comprise a first and a second pulsed gas discharge amplifier gain medium, each with a nominal center wavelength in the UV range, and each operating at ½ X kHz on output pulses from the first seed laser; a second amplifier gain system which may comprise a first and a second pulsed amplifier gain medium, each with a nominal center wavelength in the UV range, and each operating at ½ X kHz on output pulses from the second seed laser.
摘要翻译：一种装置/方法可以包括线窄的脉冲光刻激光光源，其可以包括：提供激光系统的种子脉冲，其可以包括：以X kHz的速率产生种子脉冲的第一脉冲种子激光器; 第二脉冲种子激光器以XkHz的速率产生种子脉冲; 放大系统，其可以包括：第一放大器增益系统，其可以包括第一和第二脉冲气体放电放大器增益介质，每个具有在UV范围内的标称中心波长，并且每个在来自第一种子激光器第二放大器增益系统，其可以包括第一和第二脉冲放大器增益介质，每个具有在UV范围内的标称中心波长，并且每个在来自第二种子激光器的输出脉冲上以1/2 X kHz工作。

7. 发明申请

US20120092746A1 OSCILLATOR-AMPLIFIER DRIVE LASER WITH SEED PROTECTION FOR AN EUV LIGHT SOURCE 有权
标题翻译：振荡放大器驱动激光器，具有针对EUV光源的保护
公开(公告)号：US20120092746A1
公开(公告)日：2012-04-19
申请号：US13077757
申请日：2011-03-31
申请人： Kai-Chung Hou , Richard L. Sandstrom , William N. Partlo , Daniel J.W. Brown , Igor V. Fomenkov
发明人： Kai-Chung Hou , Richard L. Sandstrom , William N. Partlo , Daniel J.W. Brown , Igor V. Fomenkov
IPC分类号： G02F1/11 , H01S3/00
CPC分类号： H01S3/117 , H01S3/005 , H01S3/0057 , H01S3/0064 , H01S3/076 , H01S3/0812 , H01S3/2232 , H01S3/2383 , H05G2/005 , H05G2/008
摘要： As disclosed herein, in a first aspect, a device may comprise: an oscillator producing a light output on a beam path; a target material for interaction with light on the beam path at an irradiation site; a beam delay on the beam path the beam delay having a beam folding optical arrangement; and a switch positioned along the beam path and interposed between the oscillator and the beam delay; the switch closable to divert at least a portion of light on the beam path from the beam path, the switch having close time, t1 and the beam path having a length, L1, along the path from the switch to the irradiation site; with t1
摘要翻译：如本文所公开的，在第一方面中，一种装置可以包括：在光束路径上产生光输出的振荡器; 用于在照射部位与光束路径上的光相互作用的目标材料; 在光束路径上的光束延迟具有光束折叠光学布置的光束延迟; 以及沿光束路径定位并且介于振荡器和光束延迟之间的开关; 所述开关可关闭以使所述光束路径上的至少一部分光从所述光束路径转移，所述开关具有接近时间t1，并且所述光束路径具有沿着从所述开关到所述照射部位的路径的长度L1; 与t1

8. 发明申请

US20100074295A1 Immersion lithography laser light source with pulse stretcher 审中-公开
标题翻译：浸没光刻激光光源带脉冲担架
公开(公告)号：US20100074295A1
公开(公告)日：2010-03-25
申请号：US12592228
申请日：2009-11-20
申请人： William N. Partlo , Alexander I. Ershov , German Rylov , Igor V. Fomenkov , Daniel J.W. Brown , Christian J. Wittak , Rajasekhar M. Rao , Robert A. Bergstedt , John Fitzgerald , Richard L. Sandstrom , Vladimir B. Fleurov , Robert N. Jacques , Ed Danielewicz , Robin Swain , Edmond Arriola , Mike Wyatt , Walter Crosby
发明人： William N. Partlo , Alexander I. Ershov , German Rylov , Igor V. Fomenkov , Daniel J.W. Brown , Christian J. Wittak , Rajasekhar M. Rao , Robert A. Bergstedt , John Fitzgerald , Richard L. Sandstrom , Vladimir B. Fleurov , Robert N. Jacques , Ed Danielewicz , Robin Swain , Edmond Arriola , Mike Wyatt , Walter Crosby
IPC分类号： H01S3/22
CPC分类号： H01S3/0057 , G03F7/70341 , G03F7/70583
摘要： An apparatus and method are disclosed which may comprise a pulsed gas discharge laser lithography light source which may comprise a seed laser portion providing a seed laser output light beam of seed pulses; an amplifier portion receiving the seed laser output light beam and amplifying the optical intensity of each seed pulse to provide a high power laser system output light beam of output pulses; the amplifier portion may comprise a ring power amplifier comprising amplifier portion injection optics comprising at least one beam expanding prism, a beam reverser and an input/output coupler; the beam expansion optics and the output coupler may be mounted on an optics assembly with the beam expansion optics rigidly mounted with respect to the optics assembly and the input/output coupler mounted for relative movement with respect to the optics assembly for optical alignment purposes.
摘要翻译：公开了一种可以包括脉冲气体放电激光光刻光源的装置和方法，脉冲气体放电激光光刻光源可以包括提供种子脉冲的种子激光输出光束的种子激光部分; 接收种子激光输出光束并放大每个种子脉冲的光强度的放大器部分，以提供输出脉冲的大功率激光系统输出光束; 放大器部分可以包括环形功率放大器，其包括放大器部分注入光学器件，其包括至少一个光束扩展棱镜，光束反向器和输入/输出耦合器; 光束扩展光学器件和输出耦合器可以安装在光学组件上，其中光束扩展光学器件相对于光学组件刚性地安装，并且输入/输出耦合器被安装成相对于用于光学对准目的的光学组件的相对运动。

9. 发明申请

US20080267241A1 Laser system 失效
标题翻译：激光系统
公开(公告)号：US20080267241A1
公开(公告)日：2008-10-30
申请号：US11982152
申请日：2007-10-31
申请人： Daniel J.W. Brown , William N. Partlo , Richard L. Sandstrom
发明人： Daniel J.W. Brown , William N. Partlo , Richard L. Sandstrom
IPC分类号： H01S3/22
CPC分类号： H01S3/2308 , G03F7/70025 , G03F7/70041 , G03F7/7055 , G03F7/70575 , G03F7/70583 , H01S3/005 , H01S3/0057 , H01S3/08036 , H01S3/225 , H01S3/2325 , H01S3/2383
摘要： An apparatus/method which may comprise: a very high power line narrowed lithography laser light source which may comprise: a solid state seed laser system which may comprise: a pre-seed laser providing a pre-seed laser output; a fiber amplifier receiving the pre-seed laser output and providing an amplified seed laser pulse which may comprise: a pulse having a nominal wavelength outside of the DUV range; a frequency converter converting to essentially the wavelength of the amplifier gain medium; a first and a second gas discharge laser amplifier gain medium operating at different repetition rates from that of the seed laser output; a beam divider providing the amplifier gain mediums with output pulses from the seed laser; a beam combiner combining the outputs of each respective amplifier gain medium to provide a laser output light pulse beam having the pulse repetition rate of the solid state seed laser system.
摘要翻译：可以包括：非常高的电力线狭窄的光刻激光光源，其可以包括：固态种子激光系统，其可以包括：提供种子间激光输出的种子间激光; 接收所述种子间激光输出并提供放大的种子激光脉冲的光纤放大器，其可以包括：具有在所述DUV范围之外的标称波长的脉冲; 变换器基本上转换为放大器增益介质的波长; 第一和第二气体放电激光放大器增益介质，与种子激光输出的重复频率不同; 一个分束器，为放大器增益介质提供来自种子激光器的输出脉冲; 组合各个放大器增益介质的输出的光束组合器，以提供具有固态种子激光器系统的脉冲重复率的激光输出光脉冲光束。

10. 发明申请

US20180184509A9 EUV LIGHT SOURCE WITH SUBSYSTEM(S) FOR MAINTAINING LPP DRIVE LASER OUTPUT DURING EUV NON-OUTPUT PERIODS 审中-公开
公开(公告)号：US20180184509A9
公开(公告)日：2018-06-28
申请号：US15208548
申请日：2016-07-12
申请人： William N. Partlo , Richard L. Sandstrom , Daniel J.W. Brown , Igor V. Fomenkov
发明人： William N. Partlo , Richard L. Sandstrom , Daniel J.W. Brown , Igor V. Fomenkov
IPC分类号： H05G2/00
CPC分类号： H05G2/008 , H05G2/006
摘要： A device is disclosed herein which may comprise a droplet generator producing droplets of target material; a sensor providing an intercept time signal when a droplet reaches a preselected location; a delay circuit coupled with said sensor, the delay circuit generating a trigger signal delayed from the intercept time signal; a laser source responsive to a trigger signal to produce a laser pulse; and a system controlling said delay circuit to provide a trigger signal delayed from the intercept time by a first delay time to generate a light pulse that is focused on a droplet and a trigger signal delayed from the intercept time by a second delay time to generate a light pulse which is not focused on a droplet.

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