Patents Examined by Alan A. Mathews
  • Patent number: 7859641
    Abstract: An optical element module comprising a plurality of module components is provided. The module components comprise an optical element, an optical element holder and a contact element. The optical element has a first coefficient of thermal expansion. The optical element holder holds the optical element via the first contact element and has a second coefficient of thermal expansion, the second coefficient of thermal expansion being different from the first coefficient of thermal expansion. At least one of the module components is adapted to provide at least a reduction of forces introduced into the optical element upon a thermally induced position change in the relative position between the optical element and the optical element holder, the position change resulting from a temperature situation variation in a temperature situation of the plurality of module components.
    Type: Grant
    Filed: January 17, 2008
    Date of Patent: December 28, 2010
    Assignee: Carl Zeiss SMT AG
    Inventors: Thomas Bischoff, Hagen Federau, Willi Heintel, Bernd Wuesthoff, Jochen Wieland
  • Patent number: 7857530
    Abstract: In a developing method for performing developing treatment of a substrate by supplying a developing solution onto a resist film formed on a surface of the substrate, the present invention controls a zeta potential of the surface of the substrate at a predetermined potential in the same polarity as that of a zeta potential of insoluble substances floating in the developing solution, thereby preventing or reducing the adhesion of the insoluble substances to the resist film and the substrate. This remedies the occurrence of development defects. The adhesion of the insoluble substances to the resist film and the substrate can also be prevented or inhibited by supplying an acid liquid to a liquid on the substrate, or controlling a pH value of the liquid on the substrate to control an absolute value of the zeta potential of the insoluble substances.
    Type: Grant
    Filed: July 10, 2008
    Date of Patent: December 28, 2010
    Assignee: Tokyo Electron Limited
    Inventors: Yuko Ono, Junichi Kitano
  • Patent number: 7852457
    Abstract: In an immersion lithography apparatus, ultrasonic waves are used to atomize liquid on a surface of the substrate.
    Type: Grant
    Filed: June 20, 2008
    Date of Patent: December 14, 2010
    Assignee: ASML Netherlands B.V.
    Inventors: Stefan Philip Christiaan Belfroid, Nicolaas Ten Kate, Nicolaas Rudolf Kemper, Johannes Petrus Maria Smeulers, Arno Willem Frederik Volker, Rene Breeuwer
  • Patent number: 7847916
    Abstract: An exposure apparatus exposes a substrate by projecting an image of a pattern onto the substrate via a projection optical system and a liquid that fills a gap between the projection optical system and the substrate. The exposure apparatus has a liquid recovery mechanism with a drive section powered by electric power supplied from a commercial power source and an uninterruptible power source separate from the commercial power source. When the commercial power source has a failure, the supply of electric power to the drive section is switched to the uninterruptible power source.
    Type: Grant
    Filed: July 1, 2005
    Date of Patent: December 7, 2010
    Assignee: Nikon Corporation
    Inventors: Hideaki Hara, Hiroaki Takaiwa, Dai Arai
  • Patent number: 7847918
    Abstract: Exposure for performing patterning in which micropatterns differing in pitch exist in close vicinity to one another is handled, and micropatterns are formed with high accuracy with sufficient manufacture process margins without using a photomask complicated in manufacturing process at high manufacture cost like an alternating phase shift mask. A light intensity distribution of irradiation light constituted of double pole illuminations is formed to correspond to L&S patterns. The double pole illumination is constituted of a pair of illumination modes, and the double pole illumination is constituted of a pair of illumination modes.
    Type: Grant
    Filed: December 15, 2006
    Date of Patent: December 7, 2010
    Assignee: Fujitsu Semiconductor Limited
    Inventor: Tomohiko Yamamoto
  • Patent number: 7826031
    Abstract: An exposure apparatus exposes a substrate by projecting an image of a pattern onto the substrate via a projection optical system and a liquid that fills a gap between the projection optical system and the substrate. The exposure apparatus has a liquid recovery mechanism with a drive section powered by electric power supplied from a commercial power source and an uninterruptible power source separate from the commercial power source. When the commercial power source has a failure, the supply of electric power to the drive section is switched to the uninterruptible power source.
    Type: Grant
    Filed: December 1, 2006
    Date of Patent: November 2, 2010
    Assignee: Nikon Corporation
    Inventors: Hideaki Hara, Hiroaki Takaiwa, Dai Arai
  • Patent number: 7826037
    Abstract: A system is used to perform fast and slow applications, for example fast application can be pulse trimming. The system includes a radiation source, an electro-optical modulator, and a beam splitter. The radiation source is configured to generate a polarized beam of radiation. The electro-optical modulator, formed of crystalline quartz, is configured to modulate the beam of radiation. The beam splitter is configured to direct a first portion of the beam to a beam dump and to form an output beam from a second portion of the beam.
    Type: Grant
    Filed: August 30, 2007
    Date of Patent: November 2, 2010
    Assignee: ASML Netherlands B.V.
    Inventors: Huibert Visser, Oscar Franciscus Jozephus Noordman, Henri Johannes Petrus Vink, Marcus Gerhardus Hendrikus Meijerink, Koenraad Remi André Maria Schreel, Cornelis Cornelia De Bruijn
  • Patent number: 7821616
    Abstract: In immersion exposure, a resist pattern forming method suppressing resist pattern defects comprises mounting a substrate formed a resist film thereon and a reticle formed a pattern thereon onto an exposure apparatus, supplying a first chemical solution onto the resist film to selectively form a first liquid film in a local area on the resist film and draining the solution, the first liquid film having a flow and being formed between the resist film and a projection optical system, transferring the pattern of the reticle to the resist film through the first liquid film to form a latent image, supplying a second chemical solution onto the resist film to clean the resist film, heating the resist film, and developing the resist film to form a resist pattern from the resist film.
    Type: Grant
    Filed: March 30, 2009
    Date of Patent: October 26, 2010
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Shinichi Ito
  • Patent number: 7821615
    Abstract: A liquid jet and recovery system for an immersion lithography apparatus has arrays of nozzles arranged to have their openings located proximal to an exposure region through which an image pattern is projected onto a workpiece such as a wafer. These nozzles are each adapted to serve selectively either as a source nozzle for supplying a fluid into the exposure region or as a recovery nozzle for recovering the fluid from the exposure region. A fluid controlling device functions to cause nozzles on selected one or more sides of the exposure region to serve as source nozzles and to cause nozzles on selected one or more of the remaining sides to serve as recovery nozzles such that a desired flow pattern can be established for the convenience of immersion lithography.
    Type: Grant
    Filed: June 13, 2007
    Date of Patent: October 26, 2010
    Assignee: Nikon Corporation
    Inventors: W. Thomas Novak, Andrew J. Hazelton, Douglas C. Watson
  • Patent number: 7821617
    Abstract: An apparatus that includes an exposure system for exposing a substrate to an energy pattern, a vacuum chamber having an outside wall including first and second units which can be separated from each other, and a first anti-vibration mount being supported by the first unit, and for supporting a first constituent element of the exposure system. The first anti-vibration mount is disposed outside the vacuum chamber. The apparatus further includes a second anti-vibration mount, being supported by the second unit, for supporting a second constituent element of the exposure system.
    Type: Grant
    Filed: March 20, 2007
    Date of Patent: October 26, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventor: Hiromichi Hara
  • Patent number: 7819594
    Abstract: A device includes a rotary base; an approach stage; a substrate holding table and a nozzle head. The substrate holding table holds the work by suction, and comes into intimate contact with the approach stage and the rotary base through first and second annular seal members to form a liquid storage space, respectively. When the suction holding and the intimate contact are released, the substrate becomes rotatable together with the rotary base and the approach stage.
    Type: Grant
    Filed: January 8, 2008
    Date of Patent: October 26, 2010
    Assignee: Tokyo Electron Limited
    Inventors: Hideo Funakoshi, Masahito Hamada, Yoshiki Okamoto
  • Patent number: 7821614
    Abstract: Apparatus for processing substrates according to a predetermined photolithography process includes a loading station in which the substrates are loaded, a coating station in which the substrates are coated with a photoresist material, an exposing station in which the photoresist coating is exposed to light through a mask having a predetermined pattern to produce a latent image of the mask on the photoresist coating, a developing station in which the latent image is developed, an unloading station in which the substrates are unloaded and a monitoring station for monitoring the substrates with respect to predetermined parameters of said photolithography process before reaching the unloading station.
    Type: Grant
    Filed: April 23, 2009
    Date of Patent: October 26, 2010
    Assignee: Nova Measuring Instruments Ltd.
    Inventors: Giora Dishon, Moshe Finarov, Zvi Nirel, Yoel Cohen
  • Patent number: 7817251
    Abstract: A supporting apparatus supports a movable element by a bearing. The apparatus has a moment reducing unit that exerts a force on a portion of the movable element, which is different from a portion supported by the bearing. The moment reducing unit reduces a moment that acts on the movable element when the portion of the movable element, which is supported by the bearing, changes as the movable element moves. This stabilizes the attitude of the movable element.
    Type: Grant
    Filed: September 11, 2007
    Date of Patent: October 19, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventor: Atsushi Kimura
  • Patent number: 7808614
    Abstract: An immersion lithographic projection apparatus has a liquid confinement structure configured to at least partly confine liquid to a space between a projection system and a substrate, the confinement structure having a buffer surface, when in use, positioned in close proximity to a plane substantially comprising the upper surface of the substrate and of a substrate table holding the substrate, to define a passage having a flow resistance. A recess is provided in the buffer surface, the recess, when in use, being normally full of immersion liquid to enable rapid filling of a gap between the substrate and substrate table as the gap moves under the buffer surface. The recess may be annular or radial and a plurality of recesses may be provided.
    Type: Grant
    Filed: December 19, 2008
    Date of Patent: October 5, 2010
    Assignee: ASML Netherlands B.V.
    Inventors: Carlo Cornelis Maria Luijten, Sjoerd Nicolaas Lambertus Donders, Nicolaas Rudolf Kemper, Martinus Hendrickus Antonius Leenders, Erik Roelof Loopstra, Bob Streefkerk, Marcel Beckers, Herman Boom, Richard Moerman
  • Patent number: 7804584
    Abstract: Methods of manufacturing an integrated circuit by a lithographic apparatus are disclosed. The methods include patterning a radiation beam with a patterning device, projecting the patterned beam onto a substrate using a projection system, and determining the position of the patterning device. In one example, the patterning device's position relative to the projection system is determined by measuring the position of the patterning device's support structure. In another example, the position can be determined by measuring a position of the patterning device relative to its support and by measuring a position of the support. In another example, a Z-position of the patterning device is determined by directing at least one beam of radiation onto a part of the patterning device located outside a pattern area. This can be done by directing a pair of laser beams from sensors on the projection system to reflecting strips on the patterning device.
    Type: Grant
    Filed: October 31, 2008
    Date of Patent: September 28, 2010
    Assignee: ASML Netherland B.V.
    Inventors: Petrus Rutgerus Bartray, Wilhelmus Josephus Box, Dominicus Jacobus Petrus Adrianus Franken, Bernardus Antonius Johannes Luttikhuis, Engelbertus Antonius Franciscus Van Der Pasch, Marc Wilhelmus Maria Van Der Wijst, Marc Johannes Martinus Engels
  • Patent number: 7804579
    Abstract: A control system is provided for controlling a support structure in a lithographic apparatus. The control system includes a first measurement system arranged to measure the position of a substrate supported by the support structure, the position being measured in a first coordinate system. The control system further includes a second measurement system for measuring the position of the support structure in a second coordinate system, the first measurement system having a presumed position in the second coordinate system.
    Type: Grant
    Filed: June 21, 2007
    Date of Patent: September 28, 2010
    Assignee: ASML Netherlands B.V.
    Inventors: Erik Roelof Loopstra, Engelbertus Antonlus Fransiscus Van Der Pasch, Marc Wilhelmus Maria Van Der Wijst
  • Patent number: 7796237
    Abstract: A lithography apparatus includes a resist processing apparatus to perform a process of applying a resist on a substrate, a process of heating a resist film on the substrate, and a process of developing the resist film on the substrate, an immersion exposure apparatus including a projection optical system which projects an image of a pattern on a photomask onto the resist film and configured to perform exposure through liquid located on an optical path between the projection optical system and resist film, a transporting apparatus connected to the resist processing and immersion exposure apparatuses to perform transportation of the substrate between the resist processing and immersion exposure apparatuses, and a temperature/humidity control apparatus configured to control at least one of temperature and humidity in at least one of the resist processing and transporting apparatuses based on temperature and humidity or the in humidity the immersion exposure apparatus.
    Type: Grant
    Filed: December 22, 2008
    Date of Patent: September 14, 2010
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Shinichi Ito, Tsuyoshi Shibata
  • Patent number: 7789576
    Abstract: The present disclosure provides a lithography apparatus. The apparatus includes an exposure module designed for exposure processing; a baking module embedded in the exposure module and designed for post exposure baking (PEB); and a control module designed to control the exposure module and the baking module.
    Type: Grant
    Filed: April 25, 2007
    Date of Patent: September 7, 2010
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Feng-Ning Lee, Yung-Cheng Chen, Yao-Hwan Kao, Li-Jen Ko, Chin-Hsiang Lin
  • Patent number: 7791708
    Abstract: A lithographic apparatus includes an illumination system constructed and arranged to condition a radiation beam, and a support constructed and arranged to support a patterning device. The patterning device is capable of imparting the radiation beam with a pattern in its cross-section to form a patterned radiation beam. The apparatus also includes a substrate table constructed and arranged to hold a substrate, and a projection system constructed and arranged to project the patterned radiation beam onto a target portion of the substrate. The substrate table includes a chuck having a plurality of protrusions constructed and arranged to support corresponding parts of a bottom surface of a wafer. The top surface of at least one of the protrusions includes a plurality of elements that define a reduced contact area between the substrate and the top surface of the protrusion.
    Type: Grant
    Filed: December 27, 2006
    Date of Patent: September 7, 2010
    Assignee: ASML Netherlands B.V.
    Inventors: Michiel Puyt, Arno Jan Bleeker, Johannes Hendrikus Gertrudis Franssen, Rene Theodorus Petrus Compen, Johannes Theodorus Guillielmus Maria Van De Ven, Egbert Dirk Stam, Rudolf Hartmut Fischer, Edwin Robert Martin Gelinck
  • Patent number: 7782444
    Abstract: A top plate is configured to surround a space with a first plate member and a second plate member which oppose each other and a side wall member. The top plate includes a rib arranged in the space. The rib includes a plurality of connecting portions. Each connecting portion respectively connects to either the side wall member or a member in the space. The rib has a thickness at a portion between adjacent connecting portions which is larger than the thickness at each connecting portion.
    Type: Grant
    Filed: January 26, 2007
    Date of Patent: August 24, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventor: Atsushi Kimura