With Temperature Or Foreign Particle Control Patents (Class 355/30)
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Patent number: 8928856Abstract: An exposure apparatus for forming a predetermined pattern on a substrate by using exposure light, includes a stage apparatus which is movable with respect to an optical axis of the exposure light; a light-transmissive member provided at the stage apparatus, wherein a liquid is supplied on an upper surface of the light-transmissive member; and a measurement device which is settable below the light-transmissive member when measurement using the measurement device is performed. Leakage or entrance of a liquid used for exposure into an optical measurement device such as a wavefront aberration measurement device can be prevented, thereby enabling preferable optical adjustment such as imaging performance or optical characteristics.Type: GrantFiled: December 28, 2009Date of Patent: January 6, 2015Assignee: Nikon CorporationInventor: Kazuya Ono
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Patent number: 8928855Abstract: A lithographic apparatus includes a projection system constructed and arranged to project a beam of radiation onto a target portion of a substrate, an internal sensor having a sensing surface, and a mini-reactor movable with respect to the sensor. The mini-reactor includes an inlet for a hydrogen containing gas, a hydrogen radical generator, and an outlet for a hydrogen radical containing gas. The mini-reactor is constructed and arranged to create a local mini-environment comprising hydrogen radicals to treat the sensing surface.Type: GrantFiled: April 15, 2009Date of Patent: January 6, 2015Assignees: ASML Netherlands B.V., Carl Zeiss SMT GmbHInventors: Johannes Hubertus Josephina Moors, Bastiaan Theodoor Wolschrijn, Dirk Heinrich Ehm
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Patent number: 8921812Abstract: A position measurement device measures the position of a position measurement mark formed on the lower surface of a reticle, thereby measuring the position of the reticle. A position measurement device measures the position of the position measurement mark formed on the lower surface of a lower lid, thereby measuring the position of the lower lid. The relative displacement of the reticle and lower lid is known when the position of the reticle and the position of the lower lid are known. Therefore, when the lower lid having the reticle loaded thereon is carried with a carrying device and set in an exposure device, the stop position of the lower lid is determined by taking this displacement into account. As a result, the reticle can be correctly set in the exposure device.Type: GrantFiled: April 13, 2012Date of Patent: December 30, 2014Assignee: Nikon CorporationInventors: Motoko Suzuki, Yukiharu Okubo
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Patent number: 8922748Abstract: An exposure apparatus includes a first optical member from which an exposure beam is emitted; a first object movable at a light-exit side of the first optical member; a second object movable, independently of the first object, at the light-exit side of the first optical member; and a driving unit that moves the first object and the second object in a first direction within a predetermined plane including a first position opposing the first optical member in a state in which the first object and the second object are close to or in contact with each other and in which positions of the first object and the second object in a second direction within the predetermined plane are shifted.Type: GrantFiled: September 13, 2012Date of Patent: December 30, 2014Assignee: Nikon CorporationInventor: Tohru Kiuchi
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Publication number: 20140375971Abstract: A lithographic apparatus includes an illumination system to provide a beam of radiation, a support to support a patterning devices, the patterning devices configured to impart the beam with a pattern in its cross-section, a substrate table to hold a substrate, a projection system to project the patterned beam onto a target portion of the substrate, and a conditioning system to condition the substrate. The conditioning system conditions a non-target portion of the substrate with a conditioning fluid. A method of manufacturing a device includes conditioning a non-target portion of a substrate.Type: ApplicationFiled: June 4, 2014Publication date: December 25, 2014Applicant: ASML NETHERLANDS B.V.Inventor: Wilhelmus Josephus BOX
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Publication number: 20140375973Abstract: An immersion lithographic apparatus is provided with a liquid confinement structure which defines at least in part a space configured to contain liquid between the projection system and the substrate. In order to reduce the crossing of the edge of the substrate which is being imaged (which can lead to inclusion of bubbles in the immersion liquid), the cross-sectional area of the space in a plane parallel to the substrate is made as small as possible. The smallest theoretical size is the size of the target portion which is imaged by the projection system. In an embodiment, the shape of a final element of the projection system is also changed to have a similar size and/or shape in a cross-section parallel to the substrate to that of the target portion.Type: ApplicationFiled: September 11, 2014Publication date: December 25, 2014Applicant: ASML NETHERLANDS B.V.Inventors: Bob STREEFKERK, Sjoerd Nicolaas Lambertus DONDERS, Roelof Frederik DE GRAAF, Christiaan Alexander HOOGENDAM, Hans JANSEN, Martinus Hendrikus Antonius LEENDERS, Paulus Martinus Maria LIEBREGTS, Jeroen Johannes Sophia Maria MERTENS, Jan-Gerard Cornelis VAN DER TOORN, Michel RIEPEN
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Publication number: 20140375972Abstract: Liquid is supplied to a space between the projection system and the substrate by an inlet. In an embodiment, an overflow region removes liquid above a given level. The overflow region may be arranged above the inlet and thus the liquid may be constantly refreshed and the pressure in the liquid may remain substantially constant.Type: ApplicationFiled: September 9, 2014Publication date: December 25, 2014Applicant: ASML NETHERLANDS B.V.Inventors: Christiaan Alexander HOOGENDAM, Bob Streefkerk, Johannes Catharinus Hubertus Mulkens, Erik Theodorus Maria Bijlaart, Aleksey Yurievich Kolesnychenko, Erik Roelof Loopstra, Jeroen Johannes Sophia Maria Mertens, Bernardus Antonius Slaghekke, Patricius Aloysius Jacobus Tinnemans, Helmar Van Santen
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Publication number: 20140368799Abstract: A liquid supply system for an immersion lithographic projection apparatus is disclosed in which a space is defined between the projection system, a barrier member and a substrate. The barrier member is not sealed such that, during use, immersion liquid is allowed to flow out the space and between the barrier member and the substrate.Type: ApplicationFiled: June 23, 2014Publication date: December 18, 2014Applicant: ASML NETHERLANDS B.V.Inventors: Helmar Van Santen, Aleksey Kolesnychenko
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Publication number: 20140368800Abstract: A lithographic apparatus comprises a substrate table for accommodating a substrate; a projection system for imaging a pattern onto the substrate, and a metrology system for measuring a position of the substrate table with respect to the projection system. The metrology system comprises a metrology frame connected to the projection system, a grid positioned stationary with respect to the metrology frame, and an encoder connected to the substrate table and facing the grid for measuring the position of the substrate table relative to the grid. The metrology frame has a surface oriented towards the substrate table, and the surface has been configured, e.g., by writing or etching, so as to form the grid.Type: ApplicationFiled: January 25, 2013Publication date: December 18, 2014Applicant: ASML Netherlands B.V.Inventors: Adrianus Hendrik Koevoets, Sjoerd Nicolaas Lambertus Donders, Petrus Maria Cadee
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Patent number: 8913225Abstract: In an immersion lithographic apparatus, a final element is disclosed having, on a surface nearest the substrate, a layer bonded to the surface and having an edge barrier, of the same material as the layer, extending from the layer away from the substrate to shield the final element from a liquid. In an embodiment, the final element is attached to the apparatus via the layer and/or edge barrier, which may be made of a material with a coefficient of thermal expansion lower than the coefficient of thermal expansion of the final element.Type: GrantFiled: July 22, 2011Date of Patent: December 16, 2014Assignee: ASML Netherlands B.V.Inventors: Tammo Uitterdijk, Erik Roelof Loopstra, Laurens Anthony Sanderse
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Patent number: 8913224Abstract: An exposure apparatus EX is provided with a measuring unit 60 which measures at least one of property and components of a liquid LQ in a state that a liquid immersion area LR is formed on an object different from a substrate P to be exposed. There is provided an exposure apparatus which can accurately perform exposure process and measurement process through the liquid by judging the state of the liquid in advance and by performing a procedure as appropriate.Type: GrantFiled: September 2, 2011Date of Patent: December 16, 2014Assignee: Nixon CorporationInventor: Yoshiki Kida
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Patent number: 8913223Abstract: 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.Type: GrantFiled: June 7, 2010Date of Patent: December 16, 2014Assignee: ASML Netherlands B.V.Inventors: Bob Streefkerk, Antonius Theodorus Anna Maria Derksen, Joeri Lof, Klaus Simon, Alexander Straaijer
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Patent number: 8913308Abstract: A light collecting member includes a lens to make incident light be collected on a light receiving member, a lens barrel to house the lens, an end portion into which a light enters of the lens barrel being arranged near the light receiving member and a fence member to cover the end portion into which a light enters of the lens barrel and the light receiving member, the fence member having an exhaust port formed in a manner extending in a vertical direction.Type: GrantFiled: August 5, 2013Date of Patent: December 16, 2014Assignees: NEC AccessTechnica, Ltd., NEC Engineering, Ltd.Inventors: Namie Sugiyama, Koushi Takano, Hiroyuki Okada
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Publication number: 20140362354Abstract: An information calculation method includes: calculating liquid information regarding a liquid on an object, which faces an optical member that emits exposure light, when moving the object; and calculating region information indicating a region, in which the liquid information satisfies predetermined conditions, on the object.Type: ApplicationFiled: June 6, 2014Publication date: December 11, 2014Inventors: Mineyuki NISHINO, Katsushi NAKANO, Satoshi TAKAHASHI
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Publication number: 20140362355Abstract: An apparatus and method for cleaning a contaminated surface of a lithographic apparatus are provided. A liquid confinement structure comprises at least two openings used to supply and extract liquid to a gap below the structure. The direction of flow between the openings can be switched. Liquid may be supplied to the gap radially outward of an opening adapted for dual flow. Supply and extraction lines to respectively supply liquid to and extract liquid from the liquid confinement structure have an inner surface that is resistant to corrosion by an organic liquid. A corrosive cleaning fluid can be used to clean photo resist contamination.Type: ApplicationFiled: June 20, 2014Publication date: December 11, 2014Applicant: ASML NETHERLANDS B.V.Inventors: Takeshi Kaneko, Kornelis Tijmen Hoekerd
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Publication number: 20140362353Abstract: A temperature adjusting apparatus of a mask substrate according to an embodiment is used in a mask drawing apparatus drawing a desired pattern by irradiating a charged particle beam to a mask substrate after a temperature of the mask substrate is adjusted in advance. The temperature adjusting apparatus includes a supporting member supporting the mask substrate; and first and second temperature adjusting plates facing each other with sandwiching the supporting member, the plates having a plurality of first and second regions respectively, and each temperatures of the first and second regions being capable to be independently adjusted.Type: ApplicationFiled: May 28, 2014Publication date: December 11, 2014Applicant: NuFlare Technology, Inc.Inventor: Hiroki TAKEUCHI
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Publication number: 20140362356Abstract: While a wafer stage moves linearly in a Y-axis direction, surface position information of a wafer surface at a plurality of detection points set at a predetermined interval in an X-axis direction is detected by a multipoint AF system, and by a plurality of alignment systems arranged in a line along the X-axis direction, marks at different positions on the wafer are each detected, and a part of a chipped shot of the wafer is exposed by a periphery edge exposure system. This allows throughput to be improved when compared with the case when detection operation of the marks, detection operation of the surface position information (focus information), and periphery edge exposure operation are performed independently.Type: ApplicationFiled: August 22, 2014Publication date: December 11, 2014Applicant: Nikon CorporationInventor: Yuichi SHIBAZAKI
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Publication number: 20140362366Abstract: A computer-implemented method for determining an optimized purge gas flow in a semi-conductor inspection metrology or lithography apparatus, comprising receiving a permissible contaminant mole fraction, a contaminant outgassing flow rate associated with a contaminant, a contaminant mass diffusivity, an outgassing surface length, a pressure, a temperature, a channel height, and a molecular weight of a purge gas, calculating a flow factor based on the permissible contaminant mole fraction, the contaminant outgassing flow rate, the channel height, and the outgassing surface length, comparing the flow factor to a predefined maximum flow factor value, calculating a minimum purge gas velocity and a purge gas mass flow rate from the flow factor, the contaminant mass diffusivity, the pressure, the temperature, and the molecular weight of the purge gas, and introducing the purge gas into the semi-conductor inspection metrology or lithography apparatus with the minimum purge gas velocity and the purge gas flow rate.Type: ApplicationFiled: August 22, 2014Publication date: December 11, 2014Inventors: Gildardo Delgado, Terry Johnson, Marco Arienti, Salam Harb, Lennie Klebanoff, Rudy Garcia, Mohammed Tahmassebpur, Sarah Scott
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Patent number: 8906585Abstract: A method of manufacturing a semiconductor device in which the alignment accuracy of an immersion exposure device is maintained even when exposure steps are carried out intermittently. In the method, a substrate is placed on a stage of an exposure device (substrate placing step). Then, a first liquid is supplied to between the substrate and the optics system of the exposure device to expose the substrate through the first liquid (exposure step). A second liquid is supplied from a different place from the first liquid to a drainage groove provided around the stage at least in a period other than when the first liquid is supplied onto the stage, in order to suppress change in the temperature of the exposure device.Type: GrantFiled: March 2, 2013Date of Patent: December 9, 2014Assignee: Renesas Electronics CorporationInventor: Kazuyuki Yoshimochi
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Patent number: 8908143Abstract: A substrate holder for use in a lithographic apparatus. The substrate holder comprises a main body, a plurality of burls and a heater and/or a temperature sensor. The main body has a surface. The plurality of burls project from the surface and have end surfaces to support a substrate. The heater and/or temperature sensor is provided on the main body surface. The substrate holder is configured such that when a substrate is supported on the end surfaces, a thermal conductance between the heater and/or temperature sensor and the substrate is greater than a thermal conductance between the heater and/or temperature sensor and the main body surface.Type: GrantFiled: December 20, 2012Date of Patent: December 9, 2014Assignee: ASML Netherlands B.V.Inventors: Siegfried Alexander Tromp, Nicolaas Ten Kate, Raymond Wilhelmus Louis Lafarre
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Patent number: 8908146Abstract: An actuator system is disclosed having a first actuator (XP1) and a second actuator (XP2) configured to control a relative position of optical components of a lithographic apparatus. The first actuator (XP1) is configured to provide a displacement, parallel to an actuation direction, between a mounting point of a first component of the lithographic apparatus and a second component of the lithographic apparatus. The second actuator (XP2) is configured to provide a displacement parallel to the actuation direction between a reference mass (M1) associated with the second actuator (XP2) and the mounting point of the first component of the lithographic apparatus. The second actuator (XP2) may be driven such that the displacement between the second actuator (XP2) and the reference mass (M1) increases the apparent stiffness of the first actuator (XP1).Type: GrantFiled: March 9, 2009Date of Patent: December 9, 2014Assignee: ASML Netherlands B.V.Inventor: Hans Butler
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Publication number: 20140354967Abstract: An immersion lithography apparatus includes (i) an optical assembly including an optical element, and configured to project a beam onto a substrate through an immersion liquid; (ii) a containment member that surrounds a path of the beam; and (iii) a stage on which the substrate is held, the substrate on the stage being moved below and spaced from a bottom surface of the containment member. The containment member includes: (1) a nozzle outlet via which water as the immersion liquid is released, (2) a recovery channel via which the immersion liquid is recovered from a gap between the containment member and the substrate and/or the stage, and (3) a fluid channel via which water is released to the gap between the containment member and the substrate and/or the stage, the fluid channel being provided radially inward of the recovery channel.Type: ApplicationFiled: August 19, 2014Publication date: December 4, 2014Applicant: NIKON CORPORATIONInventors: W. Thomas NOVAK, Andrew J. HAZELTON, Michael SOGARD
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Publication number: 20140354965Abstract: The present invention discloses an immersion liquid replenishing apparatus, a replenishing method, and a wafer scribing lines inspection machine with the immersion liquid replenishing apparatus. The immersion liquid replenishing apparatus inputs an immersion liquid from a first pipe of the cover and outputs the immersion liquid from a second pipe of the bottom of a reservoir. The replenishing method comprises the steps of providing an immersion liquid replenishing apparatus, feeding an immersion liquid, forming a film, and discharging the immersion liquid. The production and preparation of the apparatus and method of the invention is convenient and cheap. During a process of wafer scribing lines inspection, the wafer scribing lines inspection machine with the immersion liquid replenishing apparatus has enough immersion liquid to form the film and discharges excess immersion liquid.Type: ApplicationFiled: July 23, 2013Publication date: December 4, 2014Applicant: YAYATECH CO., LTD.Inventors: Ying-Cheng CHEN, Sheng-Feng Lin, Li-Chueh Chen, Yi-Chien Chen
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Publication number: 20140354966Abstract: A controller measures positional information of a stage within an XY plane using three encoders which at least include one each of an X encoder and a Y encoder of an encoder system, and the stage is driven in the XY plane, based on measurement results of the positional information and positional information (p1, q1), (p2, q2), and (p3, q3) in a surface parallel to the XY plane of a head (an encoder) used for measurement of the positional information. Accordingly, it becomes possible to control the movement of the stage with good precision, while switching the head (the encoder) used for control during the movement of the stage using the encoder system which includes a plurality of heads.Type: ApplicationFiled: August 14, 2014Publication date: December 4, 2014Inventor: Yuichi SHIBAZAKI
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Patent number: 8902401Abstract: An optical imaging device, in particular for use in microlithography, includes a mask device for receiving a mask having a projection pattern, a projection device with an optical element group, a substrate device for receiving a substrate and an immersion zone. The optical element group is adapted to project the projection pattern onto the substrate and includes a plurality of optical elements with an immersion element to which the substrate is at least temporarily located adjacent to during operation. During operation, the immersion zone is located between the immersion element and the substrate and is at least temporarily filled with an immersion medium. A thermal attenuation device is provided, the thermal attenuation device being adapted to reduce fluctuations within the temperature distribution of the immersion element induced by the immersion medium.Type: GrantFiled: December 12, 2012Date of Patent: December 2, 2014Assignee: Carl Zeiss SMT GmbHInventors: Bernhard Gellrich, Jens Kugler, Thomas Ittner, Stefan Hembacher, Karl-Heinz Schimitzek, Payam Tayebati, Hubert Holderer
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Patent number: 8902403Abstract: In a solid immersion lithography apparatus, the final element of the projection system is maintained at a distance of less than about 50 nm from the substrate by an actuator system. The final element may be formed as two parts, with a fluid, e.g. a liquid, confined between them. The actuator system may be controlled relative to a reference frame, which may be supported by a bearing. Backscatter detection can be used to determine if the distance between the final element and the substrate is too large. A cleaning device can clean the substrate between exposures.Type: GrantFiled: May 3, 2011Date of Patent: December 2, 2014Assignees: ASML Netherlands B.V., ASML Holding N.V.Inventors: Martinus Hendrikus Antonius Leenders, Jozef Petrus Henricus Benschop, Alexander Viktorovych Padiy, Tao Chen
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Patent number: 8902399Abstract: An immersion lithographic apparatus includes a cleaning system for cleaning a component in the immersion lithographic apparatus in situ. The cleaning system is arranged to provide a cleaning environment in proximity of a predetermined position on a component to be cleaned. The system is also arranged to provide the cleaning environment substantially independent of a type of contamination present at the predetermined position.Type: GrantFiled: May 15, 2008Date of Patent: December 2, 2014Assignee: ASML Netherlands B.V.Inventors: Rene Theodorus Petrus Compen, Joost Jeroen Ottens
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Patent number: 8902404Abstract: Various types of pressure regulating devices are disclosed to reduce a pressure gradient in a liquid supply system of a lithographic apparatus, the liquid supply system having a liquid confinement structure configured to at least partially confine a liquid between a projection system and a substrate table of the lithographic apparatus. A high pressure gradient may cause particulate contamination in the liquid supply system and/or liquid confinement structure. A pressure gradient can be reduced by, for example, the use of slow switching in one or more valves, a bleed flow around or through one or more valves, diversion of liquid to a drain rather than or in addition to switching a valve off, a pressure regulator or flow restrictor to prevent shock waves, and a buffer volume/damper to compensate for pressure fluctuation.Type: GrantFiled: August 4, 2011Date of Patent: December 2, 2014Assignee: ASML Netherlands B.V.Inventors: Marco Koert Stavenga, Martinus Cornelis Maria Verhagen, Johannes Henricus Wilhelmus Jacobs, Hans Jansen
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Patent number: 8902402Abstract: In an exposure station, positional information of a stage holding a wafer is measured by a first fine movement stage position measurement system including a measurement arm, and in a measurement station, positional information of a stage holding a wafer is measured by a second fine movement stage position measurement system including another measurement arm. An exposure apparatus has a third fine movement stage position measurement system which can measure positional information of a stage when the stage is carried from the measurement station to the exposure station. The third fine movement stage measurement system includes an encoder system including a plurality of Y heads and a laser interferometer system including a laser interferometer.Type: GrantFiled: December 17, 2009Date of Patent: December 2, 2014Assignee: Nikon CorporationInventor: Yuichi Shibazaki
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Patent number: 8902400Abstract: A liquid handling structure for a lithographic apparatus comprises a droplet controller configured to allow a droplet of immersion liquid to be lost from the structure and to prevent the droplet from colliding with the meniscus of the confined immersion liquid. The droplet controller may comprise gas knives arranged to overlap to block an incoming droplet. There may be extraction holes lined up with gaps between gas knives to extract liquid that passes through the gap. A droplet is allowed to escape through the gaps.Type: GrantFiled: March 2, 2011Date of Patent: December 2, 2014Assignee: ASML Netherlands B.V.Inventors: Raymond Wilhelmus Louis Lafarre, Michel Riepen, Rogier Hendrikus Magdalena Cortie, Ralph Joseph Meijers, Fabrizio Evangelista
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Publication number: 20140347642Abstract: A lithographic projection apparatus is disclosed for use with an immersion liquid positioned between the projection system and a substrate, Several methods and mechanism are disclosed to protect components of the projection system, substrate table and a liquid confinement system. These include providing a protective coating on a final element of the projection system as well as providing one or more sacrificial bodies upstream of the components. A two component final optical element of CaF2 is also disclosed.Type: ApplicationFiled: August 11, 2014Publication date: November 27, 2014Applicant: ASML NETHERLANDS B.V.Inventors: Erik Roelof LOOPSTRA, Johannes Jacobus Matheus Baselmans, Marcel Mathijs Theodore Marie Dierichs, Johannes Christiaan Maria Jasper, Matthew Lipson, Hendricus Johannes Maria Meijer, Uwe Mickan, Johannes Catharinus Hubertus Mulkens, Tammo Uitterdijk
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Publication number: 20140347641Abstract: A device having a waveguide formed of a continuous body of material that is transparent to radiation that passes through the waveguide, wherein the body has an input surface and an output surface, and a cooler configured to cool the input surface and/or the output surface. An exposure apparatus having a programmable patterning device that comprises a plurality of radiation emitters, configured to provide a plurality of radiation beams; and a projection system, comprising a stationary part and a moving part, configured to project the plurality of radiation beams onto locations on a target that are selected based on a pattern, wherein at least one of the radiation emitters comprises a waveguide configured to output a radiation beam that comprises unpolarized and/or circularly polarized radiation.Type: ApplicationFiled: January 24, 2013Publication date: November 27, 2014Applicant: ASML Netherlands B.V.Inventors: Wouter Dick Koek, Arno Jan Bleeker, Erik Roelof Loopstra, Heine Melle Mulder, Erwin John Van Zwet, Dries Smeets, Robert Paul Ebeling
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Publication number: 20140347640Abstract: The invention relates to a substrate processing apparatus (10) comprising a support frame (60), a radiation projection system (20) for projecting radiation onto a substrate to be processed, a substrate support structure (30) for supporting the substrate, and a fluid transfer system (150). The radiation projection system comprises a cooling arrangement (130) and is supported by and vibrationally decoupled from the support frame such that vibrations of the support frame above a predetermined maximum frequency are substantially decoupled from the radiation projection system. The fluid transfer system comprises at least one tube (140) fixed at two points (151,152), and comprises a flexible portion. A substantial part of the flexible portion extends over a plane substantially parallel to the substrate support structure surface.Type: ApplicationFiled: September 12, 2012Publication date: November 27, 2014Inventors: Jerry Johannes Martinus Peijster, Diederik Geert Femme Verbeek
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Patent number: 8896809Abstract: A lithographic apparatus and method is disclosed to reduce the exposure time that a substrate spends within a main lithographic apparatus by pre- (or post-) exposing one or more edge devices on the substrate. Because an edge device does not ultimately yield a useful device, it can be exposed with a lithographic apparatus that has a lower resolution than that used to expose one or more of the other, complete devices produced from the substrate. Therefore, the pre- (or post-) exposure of an edge device can be performed using a less complex, and less expensive, lithographic device.Type: GrantFiled: August 15, 2007Date of Patent: November 25, 2014Assignee: ASML Netherlands B.V.Inventors: Judocus Marie Dominicus Stoeldraijer, Erik Roelof Loopstra, Jan Bernard Plechelmus Van Schoot, Diederik Jan Maas
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Patent number: 8896806Abstract: An exposure apparatus that exposes a substrate includes: an optical system that includes an emission surface from which an exposure light is emitted; a first surface that is disposed in at least a part of a surrounding of an optical path of the exposure light emitted from the emission surface; a second surface that is disposed in at least a part of a surrounding of the first surface and at a position lower than the first surface; a space portion into which a liquid can flow via a first aperture between the first surface and the second surface and which is opened to the atmosphere via a second aperture different from the first aperture; and a first recovery portion that recovers at least a part of the liquid flowing into the space portion.Type: GrantFiled: December 22, 2009Date of Patent: November 25, 2014Assignee: Nikon CorporationInventor: Shinji Sato
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Patent number: 8896810Abstract: A liquid immersion scanning exposure system utilizes an immersion liquid confined within a watertight lens hood having a base portion formed from a solid optical element. During operation, a bottom portion of a lens assembly is disposed within the immersion liquid and the solid optical element is placed upon a photoresist material or layer (to be patterned). The lens assembly moves laterally through the immersion liquid parallel to the photoresist material. Because the solid optical element separates the immersion liquid from the photoresist material and does not move relative to the photoresist material, the photoresist material does not contact with the immersion liquid and the solid optical element and is not susceptible to damage or scratching by the solid optical element.Type: GrantFiled: December 29, 2009Date of Patent: November 25, 2014Assignee: Globalfoundries Singapore PTE. Ltd.Inventors: Wenzhan Zhou, Sia Kim Tan, Lei Yuan, Meisheng Zhou
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Patent number: 8895225Abstract: A method of forming patterns includes (a) coating a substrate with a resist composition for negative development to form a resist film, wherein the resist composition contains a resin capable of increasing the polarity by the action of the acid and becomes more soluble in a positive developer and less soluble in a negative developer upon irradiation with an actinic ray or radiation, (b) forming a protective film on the resist film with a protective film composition after forming the resist film and before exposing the resist film, (c) exposing the resist film via an immersion medium, and (d) performing development with a negative developer.Type: GrantFiled: November 19, 2013Date of Patent: November 25, 2014Assignee: FUJIFILM CorporationInventor: Hideaki Tsubaki
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Patent number: 8896807Abstract: A liquid immersion lithography apparatus includes a projection system having a final optical element via which a substrate is exposed to an exposure beam through an immersion liquid located between the final optical element and the substrate, and a nozzle member. The nozzle member has a first opening on one side of the final optical element and from which the immersion liquid is supplied, a second opening on a second side of the final optical element and from which the immersion liquid is collected, and a liquid recovery portion that surrounds a path of the exposure beam and from which the immersion liquid is collected. During exposure, an upper surface of the substrate faces the liquid recovery portion, and the immersion liquid is supplied from the first opening while the immersion liquid supplied from the first opening is recovered from the second opening and the liquid recovery portion.Type: GrantFiled: July 17, 2013Date of Patent: November 25, 2014Assignee: Nikon CorporationInventors: Alex Ka Tim Poon, Leonard Wai Fung Kho
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Patent number: 8896813Abstract: An exposure method and apparatus exposes a substrate via a projection optical system and a liquid. The liquid is circulated in a circulation path. At least a part of the liquid in the circulation path is supplied through a discharge path to a space below the projection optical system, the discharge path being connected to the circulation path. The substrate is exposed via the projection optical system and the liquid.Type: GrantFiled: June 2, 2011Date of Patent: November 25, 2014Assignee: Nikon CorporationInventor: Yoshitomo Nagahashi
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Publication number: 20140340659Abstract: A lithographic apparatus component, such as a metrology system or an optical element (e.g., a mirror) is provided with a temperature control system for controlling deformation of the component. The control system includes channels provided close to a surface of the component through which a two phase cooling medium is supplied. The metrology system measures a position of at least a moveable item with respect to a reference position and includes a metrology frame connected to the reference position. An encoder is connected to the moveable item and constructed and arranged to measure a relative position of the encoder with respect to a reference grid. The reference grid may be provided directly on a surface of the metrology frame. A lithographic projection apparatus may have the metrology system for measuring a position of the substrate table with respect to the projection system.Type: ApplicationFiled: January 25, 2013Publication date: November 20, 2014Applicant: ASML Netherlands B.V.Inventors: Jan Bernard Plechelmus Van Schoot, Adrianus Hendrik Koevoets, Theodorus Petrus Maria Cadee, Sjoerd Nicolaas Lambertus Donders, Koen Jacobus Johannes Maria Zaal
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Patent number: 8891058Abstract: The invention relates to an improved EUV generating device having a contamination captor for “catching” contamination and/or debris caused by corrosion or otherwise unwanted reactions of the tin bath.Type: GrantFiled: July 10, 2009Date of Patent: November 18, 2014Assignee: Koninklijke Philips N.V.Inventors: Christof Metzmacher, Achim Weber
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Patent number: 8891053Abstract: A lithographic apparatus is disclosed in which a specific coating is applied to a specific surface. The coating is made from at least 99 wt % of at least one of the following: a transition metal oxide; a poor metal oxide, sulfide or selenide; a compound with the formula ATiOn where A is an element from Group 2 of the Periodic Table; or TiO2 doped with a metal from Group 3, 5 or 7 of the Periodic Table, wherein the coating is less than or equal to 49 nm thick.Type: GrantFiled: September 8, 2009Date of Patent: November 18, 2014Assignee: ASML Netherlands B.V.Inventors: Nina Vladimirovna Dziomkina, Nicolaas Ten Kate, Sandra Van Der Graaf, Henricus Jozef Castelijns
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Patent number: 8891055Abstract: An exposure apparatus is provided with a nozzle member that has at least one of a supply outlet which supplies the liquid and a collection inlet which recovers the liquid. By immersing the nozzle member in cleaning liquid LK stored in container, the nozzle member is cleaned.Type: GrantFiled: April 26, 2013Date of Patent: November 18, 2014Assignee: Nikon CorporationInventors: Tomoharu Fujiwara, Yasufumi Nishii, Kenichi Shiraishi
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Patent number: 8891059Abstract: A liquid recovery system is used by an immersion exposure apparatus. The liquid recovery system is provided with: a first opening; a gap portion that is provided so that a liquid on an object that opposes the first opening can flow into the gap portion through the first opening; a liquid recovery part that suctions, through a porous member, at least part of the liquid that flows into the gap portion; and a second opening that is different from the first opening. The gap portion is open to the atmosphere through the second opening.Type: GrantFiled: August 18, 2011Date of Patent: November 18, 2014Assignee: Nikon CorporationInventor: Hiroyuki Nagasaka
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Patent number: 8891054Abstract: A stage device includes a base and a stage movable portion that is movable along a surface of the base. An interferometer measures a position of the stage movable portion using measurement light. At least one of a piping element and a wiring element are connected to the stage movable portion. An auxiliary member, including a plurality of members connected with each other along an axial direction of the piping element, guides a bend of the at least one of the piping element and the wiring element. A plurality of heat insulating sheets are supported by the plurality of members of the auxiliary member. The plurality of heat insulating sheets are provided between a space through which the measurement light of the interferometer passes, and the at least one of the piping element and the wiring element.Type: GrantFiled: December 14, 2011Date of Patent: November 18, 2014Assignee: Canon Kabushiki KaishaInventors: Hitoshi Sato, Yasuhito Sasaki, Keiji Emoto
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Publication number: 20140333910Abstract: A liquid immersion photolithography system includes an exposure system that exposes a substrate with electromagnetic radiation and includes a projection optical system that focuses the electromagnetic radiation on the substrate. A liquid supply system provides liquid flow between the projection optical system and the substrate. An optional plurality of micronozzles are arranged around the periphery of one side of the projection optical system so as to provide a substantially uniform velocity distribution of the liquid flow in an area where the substrate is being exposed.Type: ApplicationFiled: July 28, 2014Publication date: November 13, 2014Inventors: Herman Vogel, Klaus Simon, Antonius Theodorus Anna Maria Derksen
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Publication number: 20140333909Abstract: An exposure apparatus exposes a substrate via a projection optical system and liquid. The exposure apparatus includes a first pipe section that flows liquid supplied from a liquid supplying device, and a second pipe section that is disposed at an outside of the first pipe section so as to surround the first pipe section and flows liquid supplied from the liquid supplying device.Type: ApplicationFiled: July 24, 2014Publication date: November 13, 2014Applicant: Nikon CorporationInventor: Yoshitomo NAGAHASHI
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Patent number: 8885141Abstract: An EUV lithography device including an illumination device for illuminating a mask at an illumination position in the EUV lithography device and a projection device for imaging a structure provided on the mask onto a light-sensitive substrate. The EUV lithography device has a processing device (15) for processing an optical element (6a), in particular the mask, preferably in a locally resolved manner, at a processing position in the EUV lithography device. For activating at least one gas component of the gas stream (27), the processing device (15) includes a particle generator (30) for generating a particle beam, in particular an electron beam (30a), and/or a high-frequency generator.Type: GrantFiled: April 15, 2011Date of Patent: November 11, 2014Assignee: Carl Zeiss SMT GmbHInventors: Wolfgang Singer, Yim-Bun-Patrick Kwan, Stefan-Wolfgang Schmidt, Dirk Heinrich Ehm, Dieter Kraus, Stefan Wiesner, Stefan Koehler, Almut Czap, Hin Yiu Anthony Chung
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Patent number: 8885142Abstract: A manifold is provided between an outlet of a fluid supply system for an immersion lithographic apparatus and a separator. The manifold is provided with a pressure sensor which passes the measured pressure in the manifold to a mass flow controller. The mass flow controller controls a leak flow into the manifold based on the measured pressure in the manifold so as to maintain a desired pressure in the manifold.Type: GrantFiled: March 9, 2011Date of Patent: November 11, 2014Assignee: ASML Netherlands B.V.Inventor: Antonius Johannus Van Der Net
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Publication number: 20140327892Abstract: A projection objective of a microlithographic projection exposure apparatus has a wavefront correction device comprising a first refractive optical element and a second refractive optical element. The first refractive optical element comprises a first optical material having, for an operating wavelength of the apparatus, an index of refraction that decreases with increasing temperature. The second refractive optical element comprises a second optical material having, for an operating wavelength of the apparatus, an index of refraction that increases with increasing temperature. In a correction mode of the correction device, a first heating device produces a non-uniform and variable first temperature distribution in the first optical material, and a second heating device produces a non-uniform and variable second temperature distribution in the second optical material.Type: ApplicationFiled: July 10, 2014Publication date: November 6, 2014Inventors: Holger Walter, Boris Bittner