Patents Examined by Alan Mathews
  • Patent number: 7665917
    Abstract: Apparatus and methods for heating a substrate in a pressurized environment inside of a thermal processing system. The substrate is placed in a gaseous environment inside a processing chamber of the thermal processing system. The substrate is supported in the gaseous environment. The gas pressure inside the processing chamber is increased above atmospheric pressure, which increases the temperature of the gaseous environment. Heat is transferred from the pressurized gaseous environment to the substrate for thermally processing a layer on the substrate.
    Type: Grant
    Filed: March 30, 2007
    Date of Patent: February 23, 2010
    Assignee: Tokyo Electron Limited
    Inventor: Brian Head
  • Patent number: 7665916
    Abstract: Accurate coating and developing having high intrasurface uniformity is achieved by suppressing the influence of components of a resist that may be eluted while a substrate coated with the resist is processed by immersion exposure. A coating unit coats a surface of a substrate with a resist. then, a first cleaning means including a cleaning nozzle cleans the substrate and then the substrate is subjected to an exposure process. Since only a small amount of components of the resist dissolves in a transparent liquid layer formed on the substrate for exposure, an exposure process can form lines in accurate line-widths. Consequently, a resist pattern of lines having accurate line-widths having high intrasurface uniformity can be formed on the substrate by developing the exposed resist.
    Type: Grant
    Filed: December 16, 2004
    Date of Patent: February 23, 2010
    Assignee: Tokyo Electron Limited
    Inventors: Taro Yamamoto, Hideharu Kyouda
  • Patent number: 7661894
    Abstract: A processing block S2 includes unit blocks, a BCT layer B3, COT layer B4 and TCT layer B5, for forming coating films, and further includes DEV layers B1, B2 layered with the unit blocks B3, B4, B5 and used as unit blocks for a developing process. Beside the unit blocks B1 to B5, a group G of transfer sections comprising transfer sections adapted to transfer each wafer W with each main arm A1 to A5 of the unit block B1 to B5 and hydrophobicity rendering units adapted to provide a hydrophobicity rendering process to the wafer W is provided. The wafer W is transferred by a transfer arm D between the transfer sections and the hydrophobicity rendering units. In this case, since it is not necessary to transfer the wafer W to the hydrophobicity rendering unit by using, for example, a main arm A4 of a COT layer B4, the load on the arm A4 can be reduced, thereby enhancing the carrying throughput.
    Type: Grant
    Filed: September 19, 2006
    Date of Patent: February 16, 2010
    Assignee: Tokyo Electron Limited
    Inventors: Nobuaki Matsuoka, Mitsuhiro Tanoue, Shinji Okada
  • Patent number: 7658560
    Abstract: An interface transport mechanism uses an upper hand when transporting a substrate from a substrate platform to an exposure device before exposure processing by an exposure device, and uses a lower hand when transporting the substrate from the exposure device to the substrate platform after the exposure processing by the exposure device. That is, the lower hand is used to transport a substrate to which a liquid is attached after exposure processing, and the upper hand is used to transport a substrate to which no liquid is attached before exposure processing.
    Type: Grant
    Filed: November 10, 2005
    Date of Patent: February 9, 2010
    Assignee: Dainippon Screen Mfg. Co., Ltd.
    Inventor: Koji Kaneyama
  • Patent number: 7659965
    Abstract: An optical lithography exposure apparatus which may be a stepper or a scanner, provides a wafer chuck that retains a wafer and at least one opaque exposure shield that extends over a discrete peripheral edge portion of the wafer thereby preventing illumination from exposing the portion of the wafer beneath the exposure shield. In a positive photoresist system, the portions of the wafer blocked from exposure by the shields, include alignment marks and the unexposed photoresist remains over the alignment marks thereby protecting the alignment marks from destruction or damage during subsequent patterning operations used to form patterns in the film being patterned.
    Type: Grant
    Filed: October 6, 2006
    Date of Patent: February 9, 2010
    Assignee: Wafertech, LLC
    Inventor: Kun-Yi Liu
  • Patent number: 7656504
    Abstract: An exposure system is provided for illuminating a fine pattern that may have features extending along orthogonal first and second linear directions. An illumination source may be provided having decreased intensity portions at a center and defined along the first and second directions.
    Type: Grant
    Filed: January 20, 1995
    Date of Patent: February 2, 2010
    Assignee: Nikon Corporation
    Inventor: Naomasa Shiraishi
  • Patent number: 7651285
    Abstract: An edge exposure apparatus performing an exposure process on an edge portion of a wafer having a coating film (resist film) formed thereon includes position detection means for detecting positional data of an outer edge of a wafer held by a spin chuck, an exposure portion for performing an exposure process on the edge portion of the wafer, a development nozzle supplying a developer to the exposed region, and alignment means for horizontally moving the spin chuck. An exposure process is performed by the exposure portion on the edge portion of the wafer held by the spin chuck while the alignment means is controlled, based on the positional data of the outer edge of the wafer which is detected by the position detection means, such that the positional relation between the outer edge of the wafer and the exposure portion is kept constant.
    Type: Grant
    Filed: October 9, 2007
    Date of Patent: January 26, 2010
    Assignee: Tokyo Electron Limited
    Inventors: Hitoshi Kosugi, Taro Yamamoto, Yoshiaki Yamada, Yasuhito Saiga
  • Patent number: 7652746
    Abstract: Methods and apparatus for maintaining the thermal equilibrium of a substrate and an immersion lithographic apparatus are disclosed using or having a timetable comprising information regarding the position, speed and/or acceleration of the substrate; and an evaporation controller and/or condensation controller acting to decrease localized evaporation and/or increase localized condensation in response to the information in the timetable. Evaporation of liquid from the surface of the substrate cools it down, while condensing liquid on its bottom surface heats the substrate locally.
    Type: Grant
    Filed: December 28, 2005
    Date of Patent: January 26, 2010
    Assignee: ASML Netherlands B.V.
    Inventors: Johannes Henricus Wilhelmus Jacobs, Nicolaas Ten Kate, Franciscus Johannes Joseph Janssen
  • Patent number: 7652751
    Abstract: A lithographic apparatus and method, in an embodiment for immersion lithography, are disclosed with a single stage in which leveling and exposure are performed simultaneously.
    Type: Grant
    Filed: April 14, 2008
    Date of Patent: January 26, 2010
    Assignee: ASML Netherlands B.V.
    Inventors: Johannes Jacobus Matheus Baselmans, Sjoerd Nicolaas Lambertus Donders, Christiaan Alexander Hoogendam, Hans Jansen, Jeroen Johannes Sophia Maria Mertens, Johannes Catharinus Hubertus Mulkens, Bob Streefkerk
  • Patent number: 7645081
    Abstract: Disclosed herein is a coating and developing apparatus 1 whose decreases in substrate-conveying accuracy can be suppressed. A processing block S2 of the coating and developing apparatus 1 includes multiple resist-film forming blocks G2, G3, and a developing block G1. A conveyance element 12 for substrate loading into the processing block S2 is provided to convey substrates W from a carrier C to the resist-film forming blocks G2, G3. Also, a conveyance element I for substrate loading into an exposure apparatus S4 is provided in an interface block S3 to load the substrates W into the exposure apparatus S4 and after unloading the substrates W from the exposure apparatus S4, convey the substrates W to the developing block G1.
    Type: Grant
    Filed: August 25, 2008
    Date of Patent: January 12, 2010
    Assignee: Tokyo Electron Limited
    Inventors: Yoshitaka Hara, Shingo Katsuki
  • Patent number: 7641406
    Abstract: A substrate processing apparatus includes an indexer block, an anti-reflection film processing block, a resist film processing block, a development processing block, a resist cover film processing block, a resist cover film removal block, and an interface block. The interface block includes a bevel portion inspection unit. The bevel portion inspection unit inspects a bevel portion of a substrate to determine whether or not the bevel portion of the substrate is contaminated. The substrate whose bevel portion is determined to be contaminated and the substrate whose bevel portion is determined that it is not contaminated are respectively subjected to different types of processing.
    Type: Grant
    Filed: July 24, 2008
    Date of Patent: January 5, 2010
    Assignee: Sokudo Co., Ltd.
    Inventors: Joichi Nishimura, Hiroshi Yoshii, Koji Nishiyama
  • Patent number: 7641405
    Abstract: A substrate processing apparatus arranged adjacent to an exposure device includes a processing section that subjects a substrate to processing and an interface provided adjacent to one end of the processing section configured to transfer and receive the substrate between the processing section and the exposure device. The processing section includes a photosensitive film formation unit configured to form a photosensitive film composed of a photosensitive material on the substrate that has not been subjected to exposure processing by the exposure device, a top surface and edge cleaning unit configured to clean a top surface and an edge of the substrate, and a development unit configured to subject the substrate to development processing after the exposure processing by the exposure device.
    Type: Grant
    Filed: February 14, 2008
    Date of Patent: January 5, 2010
    Assignee: Sokudo Co., Ltd.
    Inventor: Yoshiteru Fukutomi
  • Patent number: 7639343
    Abstract: An exposure apparatus illuminates a pattern with an energy beam and transfers the pattern onto a substrate via a projection optical system. The exposure apparatus includes a substrate stage on which the substrate is mounted and that moves within a two-dimensional plane holding the substrate. In addition, a supply mechanism supplies liquid to locally fill a space between the projection optical system and the substrate on the substrate stage with the liquid, and a recovery mechanism recovers the liquid. A plate is provided in at least a part of the periphery of a mounted area of the substrate on the substrate stage. The plate has a surface arranged at substantially the same height as a surface of the substrate mounted on the substrate stage.
    Type: Grant
    Filed: January 19, 2007
    Date of Patent: December 29, 2009
    Assignee: Nikon Corporation
    Inventor: Shigeru Hirukawa
  • Patent number: 7633598
    Abstract: A filter used for an exposure apparatus that exposes a plate using a light from a light source includes a light transmitting film configured to transmit the light from the light source, a first rod member that includes plural first rod members, and thermally contacts the light transmitting film, the plural second rod members being rod members and including a second rod member; and a second member that includes plural second rod members, and thermally contacts the light transmitting film and/or the first member, the plural second rod members being other rod members including a second rod member, wherein a heating value transmittable by the first rod member per unit time in a longitudinal direction of the first rod member is smaller than a heating value transmittable by the second rod member per unit time in a longitudinal direction of the second rod member.
    Type: Grant
    Filed: July 11, 2006
    Date of Patent: December 15, 2009
    Assignee: Canon Kabushiki Kaisha
    Inventor: Mitsuaki Amemiya
  • Patent number: 7632028
    Abstract: A substrate transfer apparatus that is designed provide an inclined transfer function that improves liquid saving efficiency of a process solution (developing solution) during the transfer of the substrate. The substrate transfer apparatus includes a first transfer unit for transferring a substrate, a second transfer unit spaced apart from an end of the first transfer unit, a third transfer unit disposed between the first and second transfer units and providing an inclined transfer that is capable of saving a developing solution adhered to the substrate during transfer of the substrate, and a transfer controller for controlling an inclined transfer angle and a connection state of the third transfer unit.
    Type: Grant
    Filed: November 26, 2008
    Date of Patent: December 15, 2009
    Assignee: DMS Co., Ltd.
    Inventors: Chun-Seok Jeong, Ho-Youn Park, Sok-Joo Lee, Seung-Won Lee
  • Patent number: 7630052
    Abstract: An exposure processing system comprises an exposure apparatus to expose a resist on a wafer, a heating apparatus comprising heating apparatus units, the heating apparatus heating the exposed resist by a heating apparatus unit in the heating apparatus units, a developing apparatus comprising developing apparatus units, the developing apparatus developing the exposed and heated resist by a developing apparatus unit in the developing apparatus units, and a control apparatus to control the exposure apparatus by using correction data so that a wafer on process object being exposed, the correction data being data for correcting a dimensional dispersion of a resist pattern caused by a pair of heating apparatus unit and developing apparatus unit used for the wafer on the process object, the pair of heating and developing apparatus unit comprising a heating and developing apparatus unit in the heating and developing apparatus used for the wafer on the process object.
    Type: Grant
    Filed: December 29, 2004
    Date of Patent: December 8, 2009
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takuya Kono, Nobuhiro Komine, Tatsuhiko Higashiki, Shoichi Harakawa, Makato Ikeda
  • Patent number: 7626681
    Abstract: According to an aspect of the present invention, there is provided a lithographic apparatus that includes a substrate carrier arranged to hold a substrate in position using an electrostatic force. The substrate carrier is provided with an integral power source. The apparatus also includes a substrate table for holding the substrate carrier.
    Type: Grant
    Filed: December 28, 2005
    Date of Patent: December 1, 2009
    Assignee: ASML Netherlands B.V.
    Inventors: Budiman Sutedja, Rudy Jan Maria Pellens, Johannes Paulus Adrianus Maria Van Den Heuvel, Paulus Wilhelmus Leonardus Van Dijk
  • Patent number: 7623220
    Abstract: A system and method for optimizing an illumination source to print a desired pattern of features dividing a light source into pixels and determining an optimum intensity for each pixel such that when the pixels are simultaneously illuminated, the error in a printed pattern of features is minimized. In one embodiment, pixel solutions are constrained from solutions that are bright, continuous, and smooth. In another embodiment, the light source optimization and resolution enhancement technique(s) are iteratively performed to minimize errors in a printed pattern of features.
    Type: Grant
    Filed: June 28, 2007
    Date of Patent: November 24, 2009
    Inventor: Yuri Granik
  • Patent number: 7619717
    Abstract: The invention relates to a method for a focus test. The method includes performing a first projection by using a radiation beam to project a first reference mark onto a substrate to generate a first reference mark image, and performing a second projection by using a radiation beam to project a first sample mark onto the substrate to generate a first sample mark image, wherein the first reference mark image and the first sample mark image at least partially overlap and the second projection is relatively focus sensitive compared to the first projection.
    Type: Grant
    Filed: October 12, 2006
    Date of Patent: November 17, 2009
    Assignee: ASML Netherlands B.V.
    Inventor: Krister Magnusson
  • Patent number: 7618203
    Abstract: In the present invention, when trouble occurs and the operation of a substrate processing apparatus is stopped, substrate information containing positions and processing states of the substrates located in the apparatus at that time is stored, and the power supply of the apparatus is then turned off. When the apparatus is restarted, the substrates located in the apparatus are collected into a substrate housing unit, and each of the substrates in the substrate housing unit is then sequentially transferred to a plurality of processing units following the same transfer recipe as that before occurrence of trouble, and substrate processing is not performed in a processing unit in which processing has already been completed, whereas substrate processing is performed in a processing unit in which processing has not been performed yet, based on the substrate information.
    Type: Grant
    Filed: March 20, 2008
    Date of Patent: November 17, 2009
    Assignee: Tokyo Electron Limited
    Inventors: Syuzo Fujimaru, Kensei Yamamoto