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公开(公告)号：US10962891B2
公开(公告)日：2021-03-30
申请号：US16707525
申请日：2019-12-09
Applicant: ASML NETHERLANDS B.V.
Inventor： Joeri Lof , Erik Theodorus Maria Bijlaart , Hans Butler , Sjoerd Nicolaas Lambertus Donders , Christiaan Alexander Hoogendam , Aleksey Yurievich Kolesnychenko , Erik Roelof Loopstra , Hendricus Johannes Maria Meijer , Jeroen Johannes Sophia Maria Mertens , Johannes Catharinus Hubertus Mulkens , Roelof Aeilko Siebrand Ritsema , Frank Van Schaik , Timotheus Franciscus Sengers , Klaus Simon , Joannes Theodoor De Smit , Alexander Straaijer , Bob Streefkerk , Helmar Van Santen , Antonius Theodorus Anna Maria Derksen , Hans Jansen , Jacobus Johannus Leonardus Hendricus Verspay
Abstract: A lithographic projection apparatus is disclosed in which a space between the projection system and the substrate is filled with a liquid. An edge seal member at least partly surrounds the substrate or other object on a substrate table to prevent liquid loss when edge portions of the substrate or other object are, for example, imaged or illuminated. A lithographic projection apparatus includes a support structure configured to hold a patterning device, the patterning device configured to pattern a beam of radiation according to a desired pattern; a substrate table configured to hold a substrate; a projection system configured to project the patterned beam onto a target portion of the substrate; a liquid supply system configured to provide liquid to a space between the projection system and the substrate; and a shutter configured to isolate the space from the substrate or a space to be occupied by a substrate.
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公开(公告)号：US10261428B2
公开(公告)日：2019-04-16
申请号：US15185626
申请日：2016-06-17
Applicant: ASML NETHERLANDS B.V.
Inventor： Joeri Lof , Erik Theodorus Maria Bijlaart , Hans Butler , Sjoerd Nicolaas Lambertus Donders , Christiaan Alexander Hoogendam , Aleksey Yurievich Kolesnychenko , Erik Roelof Loopstra , Hendricus Johannes Maria Meijer , Jeroen Johannes Sophia Maria Mertens , Johannes Catharinus Hubertus Mulkens , Roelof Aeilko Siebrand Ritsema , Frank Van Schaik , Timotheus Franciscus Sengers , Klaus Simon , Joannes Theodoor De Smit , Alexander Straaijer , Bob Streefkerk , Helmar Van Santen
Abstract: A lithographic projection apparatus is disclosed in which a space between the projection system and the substrate is filled with a liquid. An edge seal member at least partly surrounds the substrate or other object on a substrate table to prevent liquid loss when edge portions of the substrate or other object are, for example, imaged or illuminated. A lithographic projection apparatus includes a support structure configured to hold a patterning device, the patterning device configured to pattern a beam of radiation according to a desired pattern; a substrate table configured to hold a substrate; a projection system configured to project the patterned beam onto a target portion of the substrate; a liquid supply system configured to provide liquid to a space between the projection system and the substrate; and a shutter configured to isolate the space from the substrate or a space to be occupied by a substrate.
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公开(公告)号：US10126662B2
公开(公告)日：2018-11-13
申请号：US15912036
申请日：2018-03-05
Applicant: ASML Netherlands B.V.
Inventor： Scott Anderson Middlebrooks , Niels Geypen , Hendrik Jan Hidde Smilde , Alexander Straaijer , Maurits Van Der Schaar , Markus Gerardus Martinus Maria Van Kraaij
IPC: G03F7/20
Abstract: Disclosed is a method of measuring a parameter of a lithographic process, and associated inspection apparatus. The method comprises measuring at least two target structures on a substrate using a plurality of different illumination conditions, the target structures having deliberate overlay biases; to obtain for each target structure an asymmetry measurement representing an overall asymmetry that includes contributions due to (i) the deliberate overlay biases, (ii) an overlay error during forming of the target structure and (iii) any feature asymmetry. A regression analysis is performed on the asymmetry measurement data by fitting a linear regression model to a planar representation of asymmetry measurements for one target structure against asymmetry measurements for another target structure, the linear regression model not necessarily being fitted through an origin of the planar representation. The overlay error can then be determined from a gradient described by the linear regression model.
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公开(公告)号：US09869940B2
公开(公告)日：2018-01-16
申请号：US15133866
申请日：2016-04-20
Applicant: ASML Netherlands B.V.
Inventor： Si-Han Zeng , Yue-Lin Peng , Jen-Yu Fang , Arie Jeffrey Den Boef , Alexander Straaijer , Ching-Yi Hung , Patrick Warnaar
CPC classification number: G03F7/70633 , G01B11/24 , G01B11/272
Abstract: Disclosed are a method, computer program and associated apparatuses for measuring a parameter of a lithographic process. The method comprising the steps of: obtaining first measurements comprising measurements of structural asymmetry relating to a plurality of first structures, each of said plurality of measurements of structural asymmetry corresponding to a different measurement combination of measurement radiation and a value for at least a first parameter; obtaining a plurality of second measurements of target asymmetry relating to a plurality of targets, each of said plurality of measurements of target asymmetry corresponding to one of said different measurement combinations, determining a relationship function describing the relationship between said first measurements and said second measurements, for each of said measurement combinations; determining, from said relationship function, a corrected overlay value, said corrected overlay value being corrected for structural contribution due to structural asymmetry in at least said first structure.
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公开(公告)号：US09477160B2
公开(公告)日：2016-10-25
申请号：US14624167
申请日：2015-02-17
Applicant: ASML NETHERLANDS B.V.
Inventor： Bob Streefkerk , Johannes Jacobus Matheus Baselmans , Henrikus Herman Marie Cox , Antonius Theodorus Anna Maria Derksen , Sjoerd Nicolaas Lambertus Donders , Christiaan Alexander Hoogendam , Joeri Lof , Erik Roelof Loopstra , Jeroen Johannes Sophia Maria Mertens , Frits Van Der Meulen , Johannes Catharinus Hubertus Mulkens , Gerardus Petrus Matthijs Van Nunen , Klaus Simon , Bernardus Antonius Slaghekke , Alexander Straaijer , Jan-Gerard Cornelis Van Der Toorn , Martijn Houkes
CPC classification number: G03F7/70341 , G03F7/70425 , G03F7/70525 , G03F7/709
Abstract: In a lithographic apparatus, a localized area of the substrate surface under a projection system is immersed in liquid. The height of a liquid supply system above the surface of the substrate can be varied using actuators. A control system uses feedforward or feedback control with input of the surface height of the substrate to maintain the liquid supply system at a predetermined height above the surface of the substrate.
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Patent Agency Ranking
公开(公告)号：US10788755B2
公开(公告)日：2020-09-29
申请号：US16229102
申请日：2018-12-21
Applicant: ASML NETHERLANDS B.V.
Inventor： Joeri Lof , Hans Butler , Sjoerd Nicolaas Lambertus Donders , Aleksey Yurievich Kolesnychenko , Erik Roelof Loopstra , Hendricus Johannes Maria Meijer , Jeroen Johannes Sophia Maria Mertens , Johannes Catharinus Hubertus Mulkens , Roelof Aeilko Siebrand Ritsema , Frank Van Schaik , Timotheus Franciscus Sengers , Klaus Simon , Joannes Theodoor De Smit , Alexander Straaijer , Helmar Van Santen
Abstract: A lithographic projection apparatus includes a support structure to hold a patterning device, the patterning device configured to pattern a beam of radiation according to a desired pattern; a projection system to project the patterned beam onto a target portion of a substrate; a substrate table configured to hold the substrate, the substrate table including a support surface to support an intermediary plate between the projection system and at least one of the substrate and an object positioned on the substrate table and not in contact with the at least one of the substrate and the object; and a liquid supply system to provide a liquid, through which the beam is to be projected, in a space between the projection system and the at least one of the substrate and the object.
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公开(公告)号：US10678139B2
公开(公告)日：2020-06-09
申请号：US16245400
申请日：2019-01-11
Applicant: ASML NETHERLANDS B.V.
Inventor： Joeri Lof , Hans Butler , Sjoerd Nicolaas Lambertus Donders , Aleksey Yurievich Kolesnychenko , Erik Roelof Loopstra , Hendricus Johannes Maria Meijer , Johannes Catherinus Hubertus Mulkens , Roelof Aeilko Siebrand Ritsema , Frank Van Schaik , Timotheus Franciscus Sengers , Klaus Simon , Joannes Theodoor De Smit , Alexander Straaijer , Bob Streefkerk , Erik Theodorus Maria Bijlaart , Christiaan Alexander Hoogendam , Helmar Van Santen , Marcus Adrianus Van De Kerkhof , Mark Kroon , Arie Jeffrey Den Boef , Joost Jeroen Ottens , Jeroen Johannes Sophia Maria Mertens
IPC: G03F7/20
Abstract: A lithographic projection apparatus is disclosed in which a space between the projection system and a sensor is filled with a liquid.
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公开(公告)号：US10222706B2
公开(公告)日：2019-03-05
申请号：US14743775
申请日：2015-06-18
Applicant: ASML NETHERLANDS B.V.
Inventor： Joeri Lof , Antonius Theodorus Anna Maria Derksen , Christiaan Alexander Hoogendam , Aleksey Kolesnychenko , Erik Roelof Loopstra , Theodorus Marinus Modderman , Johannes Catharinus Hubertus Mulkens , Roelof Aeilko Siebrand Ritsema , Klaus Simon , Joannes Theodoor De Smit , Alexander Straaijer , Bob Streefkerk , Helmar Van Santen
Abstract: In a lithographic projection apparatus, a structure surrounds a space between the projection system and a substrate table of the lithographic projection apparatus. A gas seal is formed between said structure and the surface of said substrate to contain liquid in the space.
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公开(公告)号：US20180196357A1
公开(公告)日：2018-07-12
申请号：US15912036
申请日：2018-03-05
Applicant: ASML Netherlands B.V.
Inventor： Scott Anderson Middlebrooks , Niels Geypen , Hendrik Jan Hidde Smilde , Alexander Straaijer , Maurits Van Der Schaar , Markus Gerardus Martinus Maria Van Kraaij
IPC: G03F7/20
CPC classification number: G03F7/70633
Abstract: Disclosed is a method of measuring a parameter of a lithographic process, and associated inspection apparatus. The method comprises measuring at least two target structures on a substrate using a plurality of different illumination conditions, the target structures having deliberate overlay biases; to obtain for each target structure an asymmetry measurement representing an overall asymmetry that includes contributions due to (i) the deliberate overlay biases, (ii) an overlay error during forming of the target structure and (iii) any feature asymmetry. A regression analysis is performed on the asymmetry measurement data by fitting a linear regression model to a planar representation of asymmetry measurements for one target structure against asymmetry measurements for another target structure, the linear regression model not necessarily being fitted through an origin of the planar representation. The overlay error can then be determined from a gradient described by the linear regression model.
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公开(公告)号：US09383655B2
公开(公告)日：2016-07-05
申请号：US14541037
申请日：2014-11-13
Applicant: ASML NETHERLANDS B.V.
Inventor： Bob Streefkerk , Antonius Theodorus Anna Maria Derksen , Joeri Lof , Klaus Simon , Alexander Straaijer
CPC classification number: G03F7/70875 , G03F7/70258 , G03F7/70341 , G03F7/70716 , G03F7/70891
Abstract: An immersion lithography apparatus comprises a temperature controller configured to adjust a temperature of a projection system, a substrate and a liquid towards a common target temperature. Controlling the temperature of these elements and reducing temperature gradients may improve imaging consistency and general lithographic performance. Measures to control the temperature may include controlling the immersion liquid flow rate and liquid temperature, for example, via a feedback circuit.
Abstract translation: 浸没式光刻设备包括温度控制器，该温度控制器被配置为朝向共同的目标温度调节投影系统，基板和液体的温度。 控制这些元件的温度并降低温度梯度可以提高成像的一致性和一般的光刻性能。 控制温度的措施可以包括例如经由反馈电路来控制浸没液体流速和液体温度。
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