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91. 发明授权

US07079556B2 Bandwidth control technique for a laser 失效
标题翻译：激光带宽控制技术
公开(公告)号：US07079556B2
公开(公告)日：2006-07-18
申请号：US10670406
申请日：2003-09-24
申请人： Igor V. Fomenkov , Armen Kroyan , Jesse D. Buck , Palash P. Das , Richard L. Sandstrom , Frederick G. Erie , John Martin Algots , Gamaralalage G. Padmabandu
发明人： Igor V. Fomenkov , Armen Kroyan , Jesse D. Buck , Palash P. Das , Richard L. Sandstrom , Frederick G. Erie , John Martin Algots , Gamaralalage G. Padmabandu
IPC分类号： H01S3/09 , H01S3/10
CPC分类号： G03F7/70575 , G03F7/70025 , G03F7/70041 , G03F7/70333 , G03F7/70933 , H01S3/036 , H01S3/0385 , H01S3/0404 , H01S3/041 , H01S3/097 , H01S3/0975 , H01S3/104 , H01S3/105 , H01S3/1055 , H01S3/13 , H01S3/134 , H01S3/22 , H01S3/2207 , H01S3/225
摘要： A technique for bandwidth control of an electric discharge laser. Line narrowing equipment is provided having at least one piezoelectric drive and a fast bandwidth detection means and a bandwidth control having a time response of less than about 1.0 millisecond. In a preferred embodiment wavelength tuning mirror is dithered at dither rates of more than 500 dithers per second within a very narrow range of pivot angles to cause a dither in nominal wavelength values to produce a desired effective bandwidth of series of laser pulses.
摘要翻译：一种用于放电激光器带宽控制的技术。提供线窄设备具有至少一个压电驱动器和快速带宽检测装置以及具有小于约1.0毫秒的时间响应的带宽控制。在优选实施例中，波长调谐镜在非常窄的转角范围内以每秒超过500次抖动的抖动速率抖动，以使标称波长值的抖动产生期望的一系列激光脉冲的有效带宽。

92. 发明授权

US06721340B1 Bandwidth control technique for a laser 有权
公开(公告)号：US06721340B1
公开(公告)日：2004-04-13
申请号：US09608543
申请日：2000-06-30
申请人： Igor V. Fomenkov , Armen Kroyan , Jesse D. Buck , Palash P. Das , Richard L. Sandstrom , Frederick G. Erie , John M. Algots , Gamaralalage G. Padmabandu
发明人： Igor V. Fomenkov , Armen Kroyan , Jesse D. Buck , Palash P. Das , Richard L. Sandstrom , Frederick G. Erie , John M. Algots , Gamaralalage G. Padmabandu
IPC分类号： H01S310
CPC分类号： G03F7/70575 , G03F7/70025 , G03F7/70041 , G03F7/70333 , G03F7/70933 , H01S3/036 , H01S3/0385 , H01S3/0404 , H01S3/041 , H01S3/097 , H01S3/0975 , H01S3/104 , H01S3/105 , H01S3/1055 , H01S3/13 , H01S3/134 , H01S3/22 , H01S3/2207 , H01S3/225
摘要： A technique for bandwidth control of an electric discharge laser. Line narrowing equipment is provided having at least one piezoelectric drive and a fast bandwidth detection means and a bandwidth control having a time response of less than about 1.0 millisecond. In a preferred embodiment wavelength tuning mirror is dithered at dither rates of more than 500 dithers per second within a very narrow range of pivot angles to cause a dither in nominal wavelength values to produce a desired effective bandwidth of series of laser pulses.

93. 发明授权

US06621846B1 Electric discharge laser with active wavelength chirp correction 有权
标题翻译：具有有源波长啁啾校正的放电激光器
公开(公告)号：US06621846B1
公开(公告)日：2003-09-16
申请号：US09501160
申请日：2000-02-09
申请人： Richard L. Sandstrom , Palash P. Das , George J. Everage , Frederick G. Erie , William N. Partlo , Igor V. Fomenkov
发明人： Richard L. Sandstrom , Palash P. Das , George J. Everage , Frederick G. Erie , William N. Partlo , Igor V. Fomenkov
IPC分类号： H01S322
CPC分类号： H01S3/104 , G03F7/70025 , G03F7/70333 , G03F7/70575 , G03F7/708 , H01S3/036 , H01S3/038 , H01S3/0381 , H01S3/0382 , H01S3/105 , H01S3/1055 , H01S3/13 , H01S3/134 , H01S3/225
摘要： Electric discharge laser with active chirp correction. This application discloses techniques for moderating and dispensing these pressure waves. In some lasers small predictable patterns remain which can be substantially corrected with active wavelength control using relatively slow wavelength control instruments of the prior art. In a preferred embodiment a simple learning algorithm is described to allow advance tuning mirror adjustment in anticipation of the learned chirp pattern. Embodiments include stepper motors having very fine adjustments so that size of tuning steps are substantially reduced for more precise tuning. However, complete elimination of wavelength chirp is normally not feasible with structural changes in the laser chamber and advance tuning; therefore, Applicants have developed equipment and techniques for very fast active chirp correction. Improved techniques include a combination of a relatively slow stepper motor and a very fast piezoelectric driver. In another preferred embodiment chirp correction is made on a pulse-to-pulse basis where the wavelength of one pulse is measured and the wavelength of the next pulse is corrected based on the measurement. This correction technique is able to function at repetition rates as rapid as 2000 Hz and greater.
摘要翻译：具有主动啁啾校正的放电激光器。本申请公开了用于调节和分配这些压力波的技术。在一些激光器中，可以使用现有技术的相对较慢的波长控制装置的主动波长控制基本上校正了小的可预测的图案。在优选实施例中，描述了一种简单的学习算法，以便在预期学习的啁啾模式中允许预调谐镜调节。实施例包括具有非常精细调节的步进电动机，使得调节步骤的尺寸被显着减小以便更精确的调谐。然而，完全消除波长啁啾通常不可行，在激光室的结构变化和提前调谐; 因此，申请人已经开发了用于非常快的主动啁啾校正的设备和技术。改进的技术包括相对较慢的步进电机和非常快的压电驱动器的组合。在另一个优选实施例中，在脉冲对脉冲基础上进行啁啾校正，其中测量一个脉冲的波长，并且基于测量校正下一个脉冲的波长。该校正技术能够以2000Hz及更高的重复速率工作。

94. 发明授权

US06529531B1 Fast wavelength correction technique for a laser 有权
标题翻译：用于激光的快速波长校正技术
公开(公告)号：US06529531B1
公开(公告)日：2003-03-04
申请号：US09597812
申请日：2000-06-19
申请人： George J. Everage , Igor V. Fomenkov , Palash P. Das , Richard L. Sandstrom , Frederick G. Erie , John M. Algots
发明人： George J. Everage , Igor V. Fomenkov , Palash P. Das , Richard L. Sandstrom , Frederick G. Erie , John M. Algots
IPC分类号： H01S310
CPC分类号： G03F7/70333 , G03F7/70575 , G03F7/70933 , H01S3/036 , H01S3/104 , H01S3/105 , H01S3/1055 , H01S3/13 , H01S3/134 , H01S3/139 , H01S3/225
摘要： Electric discharge laser with fast chirp correction. Fast wavelength chirp correction equipment includes at least one piezoelectric drive and a fast wavelength detection means and has a feedback response time of less than 1.0 millisecond. In a preferred embodiment a simple learning algorithm is described to allow advance tuning mirror adjustment in anticipation of the learned chirp pattern. Techniques include a combination of a relatively slow stepper motor and a very fast piezoelectric driver. In another preferred embodiment chirp correction is made on a pulse-to-pulse basis where the wavelength of one pulse is measured and the wavelength of the next pulse is corrected based on the measurement. This correction technique is able to function at repetition rates as rapid as 2000 Hz and greater.
摘要翻译：具有快速啁啾校正的放电激光器。快速波长啁啾校正装置包括至少一个压电驱动器和快速波长检测装置，并具有小于1.0毫秒的反馈响应时间。在优选实施例中，描述了一种简单的学习算法，以便在预期学习的啁啾模式中允许预调谐镜调节。技术包括相对较慢的步进电机和非常快的压电驱动器的组合。在另一个优选实施例中，在脉冲对脉冲基础上进行啁啾校正，其中测量一个脉冲的波长，并且基于测量校正下一个脉冲的波长。该校正技术能够以2000Hz及更高的重复速率工作。

95. 发明授权

US06493374B1 Smart laser with fast deformable grating 失效
标题翻译：具有快速可变形光栅的智能激光
公开(公告)号：US06493374B1
公开(公告)日：2002-12-10
申请号：US09703317
申请日：2000-10-31
申请人： Igor V. Fomenkov , Frederick G. Erie , Jesse D. Buck , Palash P. Das
发明人： Igor V. Fomenkov , Frederick G. Erie , Jesse D. Buck , Palash P. Das
IPC分类号： H01S308
CPC分类号： H01S3/13 , G03F7/70025 , G03F7/70575 , H01S3/02 , H01S3/03 , H01S3/0401 , H01S3/08059 , H01S3/0812 , H01S3/086 , H01S3/1055 , H01S3/134 , H01S3/139 , H01S3/1392 , H01S3/225 , H01S3/2256
摘要： A smart laser having automatic computer control of pulse energy, wavelength and bandwidth using feedback signals from a wavemeter. Pulse energy is controlled by controlling discharge voltage, wavelength by controlling the position of an RMAX mirror and bandwidth is controller by adjusting the curvature of a grating to shapes more complicated than simple convex or simple concave. A preferred embodiment provides seven piezoelectric driven pressure-tension locations on the back side of the grating at 5 horizontal locations to produce shapes such as S shapes, W shapes and twisted shapes. Preferred embodiments include automatic feedback control of horizontal and vertical beam profile by automatic adjustment of a prism plate on which beam expander prisms are located and automatic adjustment of the RMAX tilt.
摘要翻译：智能激光器具有使用来自波形计的反馈信号自动计算脉冲能量，波长和带宽的计算机控制。通过控制RMAX镜的位置来控制放电电压，波长来控制脉冲能量，通过调整光栅的曲率使形状比简单的凸形或简单的凹形更复杂，带宽是控制器。优选实施例在5个水平位置上在光栅背面提供七个压电驱动压力 - 张力位置，以产生诸如S形，W形和扭曲形状的形状。优选实施例包括通过自动调节光束扩展器棱镜所在的棱镜板和自动调整RMAX倾斜来自动反馈水平和垂直光束轮廓。

96. 发明授权

US09029813B2 Filter for material supply apparatus of an extreme ultraviolet light source 有权
标题翻译：过滤器用于极紫外光源的材料供应装置
公开(公告)号：US09029813B2
公开(公告)日：2015-05-12
申请号：US13112784
申请日：2011-05-20
申请人： Igor V. Fomenkov , William N. Partlo , Georgiy O. Vaschenko , William Oldham
发明人： Igor V. Fomenkov , William N. Partlo , Georgiy O. Vaschenko , William Oldham
IPC分类号： G01J3/10 , B22F3/105 , B01D29/56
CPC分类号： B01D29/56 , B22F3/105 , H05G2/006 , H05G2/008 , H05H1/46
摘要： A filter is used in a target material supply apparatus and includes a sheet having a first flat surface and a second opposing flat surface, and a plurality of through holes. The first flat surface is in fluid communication with a reservoir that holds a target mixture that includes a target material and non-target particles. The through holes extend from the second flat surface and are fluidly coupled at the second flat surface to an orifice of a nozzle. The sheet has a surface area that is exposed to the target mixture, the exposed surface area being at least a factor of one hundred less than an exposed surface area of a sintered filter having an equivalent transverse extent to that of the sheet.
摘要翻译：在目标材料供给装置中使用过滤器，并且包括具有第一平面和第二相对平坦面的片，以及多个通孔。第一平坦表面与储存包含目标材料和非目标颗粒的目标混合物的储存器流体连通。通孔从第二平坦表面延伸并且在第二平坦表面处流体耦合到喷嘴的孔口。片材具有暴露于目标混合物的表面积，暴露的表面积比具有与片材相当的横向程度的烧结过滤器的暴露表面积至少要低一百倍。

97. 发明授权

US08462425B2 Oscillator-amplifier drive laser with seed protection for an EUV light source 有权
标题翻译：振荡器放大器驱动激光器，具有EUV光源的种子保护功能
公开(公告)号：US08462425B2
公开(公告)日：2013-06-11
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： H01S3/00 , G02F1/33 , G02B5/22 , H05G2/00 , G06K7/10
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

98. 发明申请

US20110141865A1 Metrology for Extreme Ultraviolet Light Source 有权
标题翻译：极紫外光源计量
公开(公告)号：US20110141865A1
公开(公告)日：2011-06-16
申请号：US12637961
申请日：2009-12-15
申请人： Vahan Senekerimyan , Nam-Hyong Kim , Robert A. Bergstedt , Igor V. Fomenkov , William N. Partlo
发明人： Vahan Senekerimyan , Nam-Hyong Kim , Robert A. Bergstedt , Igor V. Fomenkov , William N. Partlo
IPC分类号： G11B20/00 , G11B7/00
CPC分类号： G01J1/429 , H05G2/008
摘要： An extreme ultraviolet light system includes a drive laser system that produces an amplified light beam; a target material delivery system configured to produce a target material at a target location; a beam delivery system configured to receive the amplified light beam emitted from the drive laser system and to direct the amplified light beam toward the target location; and a metrology system. The beam delivery system includes converging lens configured and arranged to focus the amplified light beam at the target location. The metrology system includes a light collection system configured to collect a portion of the amplified light beam reflected from the converging lens and a portion of a guide laser beam reflected from the converging lens. The light collection system includes a dichroic optical device configured to optically separate the portions.
摘要翻译：极紫外光系统包括产生放大光束的驱动激光系统; 配置成在目标位置产生目标材料的目标材料输送系统; 射束传送系统，被配置为接收从驱动激光系统发射的放大光束并将放大的光束引向目标位置; 和计量系统。光束传送系统包括被配置和布置成将被放大的光束聚焦在目标位置处的会聚透镜。测量系统包括：光收集系统，被配置为收集从会聚透镜反射的放大光束的一部分和从会聚透镜反射的一部分引导激光束。光采集系统包括配置为光学地分离这些部分的二向色光学装置。

99. 发明申请

US20100258749A1 SYSTEM, METHOD AND APPARATUS FOR LASER PRODUCED PLASMA EXTREME ULTRAVIOLET CHAMBER WITH HOT WALLS AND COLD COLLECTOR MIRROR 有权
标题翻译：用于激光生产的等离子体超紫外线室的系统，方法和装置，具有热水和冷收集器
公开(公告)号：US20100258749A1
公开(公告)日：2010-10-14
申请号：US12725167
申请日：2010-03-16
申请人： William N. Partlo , Igor V. Fomenkov
发明人： William N. Partlo , Igor V. Fomenkov
IPC分类号： H05G2/00
CPC分类号： H05G2/005 , G03F7/70033 , G21K5/00 , H05G2/003 , H05G2/006
摘要： A system and method for an extreme ultraviolet light chamber comprising a collector mirror, a cooling system coupled to a backside of the collector mirror operative to cool a reflective surface of the collector mirror and a buffer gas source coupled to the extreme ultraviolet light chamber.
摘要翻译：一种用于极紫外光室的系统和方法，包括收集器反射镜，耦合到收集器反射镜的后侧的冷却系统，其用于冷却收集反射镜的反射表面和耦合到极紫外光室的缓冲气体源。

100. 发明申请

US20100176313A1 Extreme ultraviolet light source 审中-公开
标题翻译：极紫外光源
公开(公告)号：US20100176313A1
公开(公告)日：2010-07-15
申请号：US12653585
申请日：2009-12-14
申请人： Stephan T. Melnychuk , William N. Partlo , Igor V. Fomenkov , I. Roger Oliver , Richard M. Ness , Norbert Bowering , Oleh Khodykin , Curtis L. Rettiq , Gerry M. Blumenstock , Timothy S. Dyer , Rodney D. Simmons , Jerzy R. Hoffman , R. Mark Johnson
发明人： Stephan T. Melnychuk , William N. Partlo , Igor V. Fomenkov , I. Roger Oliver , Richard M. Ness , Norbert Bowering , Oleh Khodykin , Curtis L. Rettiq , Gerry M. Blumenstock , Timothy S. Dyer , Rodney D. Simmons , Jerzy R. Hoffman , R. Mark Johnson
IPC分类号： G21K5/02
CPC分类号： H05G2/003 , B82Y10/00 , G03F7/70033 , G03F7/70166 , G03F7/70175 , G03F7/70916 , H01S3/005 , H05G2/005 , H05G2/008 , H05H1/06
摘要： An apparatus for generating EUV radiation is disclosed which may include a target material, a system generating a laser beam for interaction with the target material and a pair of electrodes. A pulse power electrical circuit may be provided for generating a discharge between said electrodes to produce EUV radiation from said target material.
摘要翻译：公开了一种用于产生EUV辐射的装置，其可以包括目标材料，产生用于与靶材料相互作用的激光束的系统和一对电极。可以提供脉冲功率电路用于在所述电极之间产生放电以从所述目标材料产生EUV辐射。

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