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公开(公告)号：US10663866B2
公开(公告)日：2020-05-26
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：US09832855B2
公开(公告)日：2017-11-28
申请号：US14970402
申请日：2015-12-15
CPC分类号： H05G2/008 , H01S3/0064 , H01S3/2232 , H01S3/2308 , H01S3/2391 , H05G2/003
摘要： An optical source for a photolithography tool includes a source configured to emit a first beam of light and a second beam of light, the first beam of light having a first wavelength, and the second beam of light having a second wavelength, the first and second wavelengths being different; an amplifier configured to amplify the first beam of light and the second beam of light to produce, respectively, a first amplified light beam and a second amplified light beam; and an optical isolator between the source and the amplifier, the optical isolator including: a plurality of dichroic optical elements, and an optical modulator between two of the dichroic optical elements.
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公开(公告)号：US20230143962A1
公开(公告)日：2023-05-11
申请号：US17913013
申请日：2021-03-10
发明人： Rostislav Rokitski , Philip M. Conklin , Cory Alan Stinson , Alexander Anthony Schafgans , Christoffel Johannes Liebenberg
CPC分类号： H01S3/2333 , H01S3/1003 , H01S3/0085 , H01S3/2232 , H01S3/10061
摘要： Systems, apparatuses, and methods are provided for dual-pass amplification of laser beams along a common beam path. An example method can include generating a first laser beam and a second laser beam. Subsequently, the example method can include performing dual-pass amplification of the first laser beam and the second laser beam along a common beam path. In some aspects, the first laser beam can include a first wavelength, the second laser beam can include a second wavelength different from the first wavelength.
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公开(公告)号：US20200305263A1
公开(公告)日：2020-09-24
申请号：US16840714
申请日：2020-04-06
摘要： An optical source for a photolithography tool includes a source configured to emit a first beam of light and a second beam of light, the first beam of light having a first wavelength, and the second beam of light having a second wavelength, the first and second wavelengths being different; an amplifier configured to amplify the first beam of light and the second beam of light to produce, respectively, a first amplified light beam and a second amplified light beam; and an optical isolator between the source and the amplifier, the optical isolator including: a plurality of dichroic optical elements, and an optical modulator between two of the dichroic optical elements.
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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：US20230139746A1
公开(公告)日：2023-05-04
申请号：US18075589
申请日：2022-12-06
摘要： An optical source for a photolithography tool includes a source configured to emit a first beam of light and a second beam of light, the first beam of light having a first wavelength, and the second beam of light having a second wavelength, the first and second wavelengths being different; an amplifier configured to amplify the first beam of light and the second beam of light to produce, respectively, a first amplified light beam and a second amplified light beam; and an optical isolator between the source and the amplifier, the optical isolator including: a plurality of dichroic optical elements, and an optical modulator between two of the dichroic optical elements.
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公开(公告)号：US11553582B2
公开(公告)日：2023-01-10
申请号：US16840714
申请日：2020-04-06
摘要： An optical source for a photolithography tool includes a source configured to emit a first beam of light and a second beam of light, the first beam of light having a first wavelength, and the second beam of light having a second wavelength, the first and second wavelengths being different; an amplifier configured to amplify the first beam of light and the second beam of light to produce, respectively, a first amplified light beam and a second amplified light beam; and an optical isolator between the source and the amplifier, the optical isolator including: a plurality of dichroic optical elements, and an optical modulator between two of the dichroic optical elements.
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公开(公告)号：US20180063935A1
公开(公告)日：2018-03-01
申请号：US15790576
申请日：2017-10-23
CPC分类号： H05G2/008 , H01S3/0064 , H01S3/2232 , H01S3/2308 , H01S3/2391 , H05G2/003
摘要： An optical source for a photolithography tool includes a source configured to emit a first beam of light and a second beam of light, the first beam of light having a first wavelength, and the second beam of light having a second wavelength, the first and second wavelengths being different; an amplifier configured to amplify the first beam of light and the second beam of light to produce, respectively, a first amplified light beam and a second amplified light beam; and an optical isolator between the source and the amplifier, the optical isolator including: a plurality of dichroic optical elements, and an optical modulator between two of the dichroic optical elements.
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公开(公告)号：US20170099721A1
公开(公告)日：2017-04-06
申请号：US14970402
申请日：2015-12-15
IPC分类号： H05G2/00
CPC分类号： H05G2/008 , H01S3/0064 , H01S3/2232 , H01S3/2308 , H01S3/2391 , H05G2/003
摘要： An optical source for a photolithography tool includes a source configured to emit a first beam of light and a second beam of light, the first beam of light having a first wavelength, and the second beam of light having a second wavelength, the first and second wavelengths being different; an amplifier configured to amplify the first beam of light and the second beam of light to produce, respectively, a first amplified light beam and a second amplified light beam; and an optical isolator between the source and the amplifier, the optical isolator including: a plurality of dichroic optical elements, and an optical modulator between two of the dichroic optical elements.
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