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公开(公告)号:US08126027B2
公开(公告)日:2012-02-28
申请号:US13086858
申请日:2011-04-14
申请人: J. Martin Algots , Robert A. Bergstedt , William N. Partlo , German E. Rylov , Richard L. Sandstrom
发明人: J. Martin Algots , Robert A. Bergstedt , William N. Partlo , German E. Rylov , Richard L. Sandstrom
IPC分类号: H01S3/22
CPC分类号: H01S3/1055 , G03F7/70025 , G03F7/70041 , H01S3/005 , H01S3/036 , H01S3/08 , H01S3/08004 , H01S3/08059 , H01S3/097 , H01S3/106 , H01S3/2251
摘要: An apparatus is disclosed which may comprise a grating receiving light, a first prism moveable to coarsely select an angle of incidence of the light on the grating, and a second prism moveable to finely select an angle of incidence of the light on the grating. In one application, the apparatus may be used as a line narrowing module for a laser light source.
摘要翻译: 公开了一种可以包括接收光的光栅的装置,可以粗略地选择光栅入射角的第一棱镜和可精细选择光栅入射角的第二棱镜。 在一个应用中,该装置可以用作激光源的线窄化模块。
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公开(公告)号:US20090296755A1
公开(公告)日:2009-12-03
申请号:US11980288
申请日:2007-10-30
CPC分类号: H01S3/225 , G02F1/3534 , G02F1/37 , G03F7/70583 , H01S3/0057 , H01S3/0092 , H01S3/067 , H01S3/08004 , H01S3/0835 , H01S3/10092 , H01S3/1618 , H01S3/2258 , H01S3/2308 , H01S3/2383
摘要: A method and apparatus may comprise a laser light source system which may comprise a solid state laser seed beam source providing a seed laser output; a frequency conversion stage converting the seed laser output to a wavelength suitable for seeding an excimer or molecular fluorine gas discharge laser; an excimer or molecular fluorine gas discharge laser gain medium amplifying the converted seed laser output to produce a gas discharge laser output at approximately the converted wavelength. The excimer or molecular fluorine laser may be selected from a group comprising XeCl, XeF, KrF, ArF and F2 laser systems. The laser gain medium may comprise a power amplifier. The power amplifier may comprise a single pass amplifier stage, a multiple-pass amplifier stage, a ring power amplification stage or a power oscillator. The ring power amplification stage may comprise a bow-tie configuration or a race track configuration.
摘要翻译: 方法和装置可以包括激光光源系统,其可以包括提供种子激光输出的固态激光种子光源; 将种子激光输出转换成适合于接种准分子或分子氟气放电激光的波长的变频级; 放大转换的种子激光输出的准分子或分子氟气放电激光增益介质,以产生大致转换波长的气体放电激光输出。 受激准分子或分子氟激光可以选自包括XeCl,XeF,KrF,ArF和F2激光系统的组。 激光增益介质可以包括功率放大器。 功率放大器可以包括单通放大器级,多通道放大级,环形功率放大级或功率振荡器。 环形功率放大级可以包括弓形配置或赛道配置。
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公开(公告)号:US20090067468A1
公开(公告)日:2009-03-12
申请号:US11980172
申请日:2007-10-30
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。
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公开(公告)号:US20080151944A1
公开(公告)日:2008-06-26
申请号:US12074079
申请日:2008-02-28
申请人: J. Martin Algots , Robert A. Bergstedt , Walter D. Gillespie , Vladimir A. Kulgeyko , William N. Partlo , German E. Rylov , Richard L. Sandstrom , Brian Strate , Timothy S. Dyer
发明人: J. Martin Algots , Robert A. Bergstedt , Walter D. Gillespie , Vladimir A. Kulgeyko , William N. Partlo , German E. Rylov , Richard L. Sandstrom , Brian Strate , Timothy S. Dyer
IPC分类号: H01S3/10
CPC分类号: H01S3/1055 , G03F7/70025 , G03F7/70041 , H01S3/005 , H01S3/036 , H01S3/08 , H01S3/08004 , H01S3/08059 , H01S3/097 , H01S3/106 , H01S3/2251
摘要: A line narrowing method and module for a narrow band DUV high power high repetition rate gas discharge laser producing output laser light pulse beam pulses in bursts of pulses, the module having a nominal optical path are disclosed which may comprise: a dispersive center wavelength selection optic moveably mounted within an optical path of the line narrowing module, selecting at least one center wavelength for each pulse determined at least in part by the angle of incidence of the laser light pulse beam containing the respective pulse on the dispersive wavelength selection optic; a first tuning mechanism operative in part to select the angle of incidence of the laser light pulse beam containing the respective pulse upon the dispersive center wavelength selection optic, by selecting an angle of transmission of the laser light pulse beam containing the pulse toward the dispersive center wavelength selection optic.
摘要翻译: 一种用于窄带DUV大功率高重复率气体放电激光器的线窄化方法和模块,其产生具有标称光路的脉冲串中的输出激光束脉冲束脉冲,其可以包括:分散中心波长选择光学器件 可移动地安装在线路窄化模块的光路内,为至少部分地由分散波长选择光学器件上包含相应脉冲的激光束的入射角确定的每个脉冲选择至少一个中心波长; 第一调谐机构部分地通过选择包含脉冲朝向分散中心的激光束的透射角度来选择包含分散中心波长选择光学器件上的各个脉冲的激光束的入射角 波长选择光学元件。
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公开(公告)号:US06549551B2
公开(公告)日:2003-04-15
申请号:US09848043
申请日:2001-05-03
IPC分类号: H01S300
CPC分类号: H01S3/2366 , G03F7/70025 , G03F7/70041 , G03F7/70483 , G03F7/70575 , H01S3/0057 , H01S3/03 , H01S3/036 , H01S3/038 , H01S3/0385 , H01S3/041 , H01S3/08004 , H01S3/08009 , H01S3/0943 , H01S3/097 , H01S3/09702 , H01S3/09705 , H01S3/0971 , H01S3/10092 , H01S3/139 , H01S3/22 , H01S3/2207 , H01S3/223 , H01S3/225 , H01S3/2258 , H01S3/2325 , H01S3/2333
摘要: A narrow band laser system having two laser subsystems. The first laser subsystem is configured to provide a very narrow band pulsed output beam which is used to injection seed the second laser subsystem where the narrow band pulsed seed beam is amplified to produce a narrow band pulsed output beam. A pulse power supply is provided which is specially configured to precisely time the discharges in the two laser subsystem so that the discharges are properly synchronized. Preferred embodiments include a pulse power system with a pulse transformer unit having two sets of transformer cores. A single upstream pulse compression circuit provides high voltage pulses in parallel to the primary windings of all of the cores in both sets. Separate secondary conductors (one passing through one set of cores and the other passing through the other set of cores) provide very high voltage pulses respectively to separate downstream circuits supplying discharge pulses to the electrodes in each of two separate laser chambers. Preferred embodiments include KrF, ArF and F2 systems. In these preferred embodiments, line narrowing may be accomplished within the resonant cavity of the seed laser or the output of the seed laser could be line narrowed using a pre-gain filter.
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公开(公告)号:US20110194580A1
公开(公告)日:2011-08-11
申请号:US13086858
申请日:2011-04-14
申请人: J. Martin Algots , Robert A. Bergstedt , William N. Partlo , German E. Rylov , Richard L. Sandstrom
发明人: J. Martin Algots , Robert A. Bergstedt , William N. Partlo , German E. Rylov , Richard L. Sandstrom
CPC分类号: H01S3/1055 , G03F7/70025 , G03F7/70041 , H01S3/005 , H01S3/036 , H01S3/08 , H01S3/08004 , H01S3/08059 , H01S3/097 , H01S3/106 , H01S3/2251
摘要: An apparatus is disclosed which may comprise a grating receiving light, a first prism moveable to coarsely select an angle of incidence of the light on the grating, and a second prism moveable to finely select an angle of incidence of the light on the grating. In one application, the apparatus may be used as a line narrowing module for a laser light source.
摘要翻译: 公开了一种装置,其可以包括接收光的光栅,可移动以粗略地选择光栅入射角的第一棱镜,以及可精细选择光栅入射角的第二棱镜。 在一个应用中,该装置可以用作激光源的线窄化模块。
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公开(公告)号:US07995637B2
公开(公告)日:2011-08-09
申请号:US12603486
申请日:2009-10-21
申请人: Richard L. Sandstrom , William N. Partlo , Daniel J. W. Brown , Bryan G. Moosman , Tae H. Chung , Thomas P. Duffey , James J. Ferrell , Terance Hilsabeck
发明人: Richard L. Sandstrom , William N. Partlo , Daniel J. W. Brown , Bryan G. Moosman , Tae H. Chung , Thomas P. Duffey , James J. Ferrell , Terance Hilsabeck
IPC分类号: H01S3/22
CPC分类号: H01S3/036
摘要: One aspect of the disclosed subject matter describes a gas discharge laser chamber. The gas discharge laser chamber includes a discharge region formed between a first electrode and a second electrode, a tangential fan for circulating gas through the discharge region, wherein the fan is proximate to an input side of the discharge region, an input side acoustic baffle proximate to the input side of the discharge region. The input side acoustic baffle includes a vanishing point leading edge, a vanishing point trailing edge, a gas flow smoothing offset surface aligning a gas flow from a surface of the input side acoustic baffle to an input side of a cathode support in the discharge region, a plurality of ridges separated by a plurality of trenches, wherein the plurality of ridges and the plurality of trenches are aligned with a direction of gas flow through the discharge region and wherein the plurality of ridges have a random pitch between about 0.3 and about 0.7 inch.
摘要翻译: 所公开的主题的一个方面描述了气体放电激光室。 气体放电激光室包括形成在第一电极和第二电极之间的放电区域,用于使气体循环通过放电区域的切向风扇,其中风扇靠近放电区域的输入侧,输入侧隔音板接近 到放电区域的输入侧。 输入侧声挡板包括消失点前缘,消失点后缘,气流平滑偏移表面,使来自输入侧声挡板的表面的气流与放电区域中的阴极支撑体的输入侧对准, 由多个沟槽分离的多个脊,其中所述多个脊和所述多个沟槽与通过所述放电区域的气体流动的方向对齐,并且其中所述多个脊具有约0.3和约0.7英寸之间的随机间距 。
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公开(公告)号:US07715459B2
公开(公告)日:2010-05-11
申请号:US11982152
申请日:2007-10-31
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。
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公开(公告)号:US20100097704A1
公开(公告)日:2010-04-22
申请号:US12653584
申请日:2009-12-14
申请人: J. Martin Algots , Robert A. Bergstedt , Walter D. Gillespie , Vladimir A. Kulgeyko , William N. Partlo , German E. Rylov , Richard L. Sandstrom , Brian Strate , Timothy S. Dyer
发明人: J. Martin Algots , Robert A. Bergstedt , Walter D. Gillespie , Vladimir A. Kulgeyko , William N. Partlo , German E. Rylov , Richard L. Sandstrom , Brian Strate , Timothy S. Dyer
IPC分类号: G02B27/44
CPC分类号: H01S3/1055 , G03F7/70025 , G03F7/70041 , H01S3/005 , H01S3/036 , H01S3/08 , H01S3/08004 , H01S3/08059 , H01S3/097 , H01S3/106 , H01S3/2251
摘要: An apparatus is disclosed which may comprise a grating receiving light, a first prism moveable to coarsely select an angle of incidence of the light on the grating, and a second prism moveable to finely select an angle of incidence of the light on the grating. In one application, the apparatus may be used as a line narrowing module for a laser light source.
摘要翻译: 公开了一种装置,其可以包括接收光的光栅,可移动以粗略地选择光栅入射角的第一棱镜,以及可精细选择光栅入射角的第二棱镜。 在一个应用中,该装置可以用作激光源的线窄化模块。
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公开(公告)号:US07643529B2
公开(公告)日:2010-01-05
申请号:US11982103
申请日:2007-10-31
IPC分类号: H01S3/22
CPC分类号: G03F7/70341 , G03F7/70025 , G03F7/70041 , G03F7/7055 , H01S3/005 , H01S3/0057 , H01S3/08004 , H01S3/08009 , H01S3/083 , H01S3/10092 , H01S3/225 , H01S3/2251 , H01S3/2258 , H01S3/2333 , H01S3/2383 , H01S2301/02
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; 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。
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