Patents by Inventor Naruaki Iida

Naruaki Iida has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6206974
    Abstract: An interface apparatus places, in a boat, plural wafers transported thereto one by one from an application apparatus for performing single wafer processing, then transports the boat having the wafers placed therein to a heating apparatus for subjecting plural wafers to a heat treatment process, and after completion of the heat treatment process, receives the boat. The interface apparatus includes a stage, a rotary table rotatably arranged on the stage for placing the boat thereon, and a positioning mechanism for turning the rotary table in a direction of displacement of the boat to permit the boat to be placed on the rotary table when the boat is being placed on the rotary table with the position thereof displaced from a reference position in a rotatable direction of the rotary table, and after completion of the placement, turning the rotary table in a direction opposite to the displacement direction to thereby position the boat at the reference position.
    Type: Grant
    Filed: November 20, 1998
    Date of Patent: March 27, 2001
    Assignee: Tokyo Electron Ltd.
    Inventors: Naruaki Iida, Yukio Shigaki
  • Patent number: 6168669
    Abstract: Supporting members are provided at three places, for example, on a frame section of a pair of tweezers. Each supporting member has a tapered face as an inclined guide for allowing a rim portion of a substrate to slide down to be guided to a predetermined position. A vertical wall which is formed continuing from the tapered face and being nearly perpendicular to a supported face of a wafer is provided at an upper end of the tapered face. Even when the rim portion of the wafer rises along the tapered face with the movement of the tweezers, the rim portion stops by hitting against the vertical wall, thereby preventing the wafer from falling from the tweezers.
    Type: Grant
    Filed: February 16, 1999
    Date of Patent: January 2, 2001
    Assignee: Tokyo Electron Limited
    Inventors: Kenji Yasuda, Naruaki Iida
  • Patent number: 6054181
    Abstract: A method of subjecting a plurality of wafers to coating and beating treatments where a first boat is placed on a stage arranged in an interface section. The first boat is capable of containing the wafers stacked at intervals in a vertical direction. The stage is capable of moving in a horizontal direction, and has a plurality of positions for respectively placing a plurality of boats. The wafers are conveyed from a supply section to a coating section, and are subjected to a coating treatment one by one. The wafers, which have undergone the coating treatment, are conveyed to the interface section. The wafers, which have undergone the coating treatment, are loaded into the first boat placed on the stage, in the interface section. The first boat containing the wafers, which have undergone the coating treatment, is located at a transfer position by moving the stage. The first boat, located at a transfer position by moving the stage.
    Type: Grant
    Filed: August 5, 1996
    Date of Patent: April 25, 2000
    Assignees: Tokyo Electron Limited, Tokyo Electron Kyushu Limited
    Inventors: Mitsuhiro Nanbu, Naruaki Iida, Hideaki Gotou, Masanori Tateyama, Yuji Yoshimoto, Tomoko Ishimoto, Hidetami Yaegashi, Yasunori Kawakami, Takahide Fukuda, Akihiro Fujimoto, Takashi Takekuma, Hiroyuki Matsukawa
  • Patent number: 6050389
    Abstract: A carrier apparatus is provided with a first carrier mechanism, a second carrier mechanism, and a sensor. The first carrier mechanism has a holding portion holding a substrate, a driving pulley, an idler pulley, and a first endless belt, the first endless belt being provided between the driving pulley and the idler pulley and the holding portion being attached to the first endless belt. The second carrier mechanism has a driving source with a rotation output shaft, a speed reducing pulley fixed on the driving pulley and more than one second endless belts, the above more than one second endless belts being provided between the rotation output shaft and the speed reducing pulley. A sensor detects the state of the second endless belt, for example, the occurrence of cutting. As a result, even if the state of a carrier belt deteriorates, the holding portion is prevented from falling.
    Type: Grant
    Filed: July 20, 1998
    Date of Patent: April 18, 2000
    Assignee: Tokyo Electron Limited
    Inventors: Naruaki Iida, Seiji Kozawa
  • Patent number: 5928390
    Abstract: A processing apparatus comprises a plurality of process unit groups each including a plurality of process units for subjecting an object to a series of processes, the process units being arranged vertically in multiple stages, an object transfer space being defined among the process unit groups, and a transfer mechanism for transferring the object, the transfer mechanism having a transfer member vertically movable in the object transfer space, the transfer member being capable of transferring the object to each of the process units. The processing apparatus further comprises a mechanism for forming a downward air flow in the object transfer space, a mechanism for controlling the quantity of the downward air flow, and a mechanism for controlling the pressure in the object transfer space. Thus, a variation in condition of the object transfer space is reduced.
    Type: Grant
    Filed: January 23, 1997
    Date of Patent: July 27, 1999
    Assignee: Tokyo Electron Limited
    Inventors: Hidetami Yaegashi, Takayuki Toshima, Masami Akimoto, Eiji Yamaguchi, Junichi Kitano, Takayuki Katano, Hiroshi Shinya, Naruaki Iida
  • Patent number: 5826129
    Abstract: This invention provides a substrate processing system including a cassette station on which at least one cassette containing a plurality of objects is placed, a process station including a plurality of process chambers for performing processing for the objects, and an object conveying unit for loading the objects into the process chambers and unloading the objects from the process chambers, a first object transfer unit for transferring the objects between the cassette station and the process station, and an interface section including an object waiting region where the objects wait, and a second object transfer unit for transferring the objects to the process station, wherein the process chambers in the process station are arranged around the object conveying unit, and the object conveying unit has a rotating shaft almost parallel to the vertical direction and can move up and down in the vertical direction along the rotating shaft and rotate about the rotating shaft.
    Type: Grant
    Filed: June 29, 1995
    Date of Patent: October 20, 1998
    Assignees: Tokyo Electron Limited, Tokyo Electron Kyushu Limited
    Inventors: Keizo Hasebe, Shinji Nagashima, Norio Semba, Masami Akimoto, Yoshio Kimura, Naruaki Iida, Kouji Harada, Issei Ueda, Nobuo Konishi
  • Patent number: 5725664
    Abstract: An apparatus for subjecting a plurality of wafers to coating and heating treatments, including a coating section for subjecting the wafers to a coating treatment one by one, a heating section for subjecting wafers which have undergone the coating treatment to a heating treatment all together, and an interface section arranged between the coating section and the heating section. The wafers are heat-treated in the heat treatment section while the wafers are stacked at intervals in a vertical direction in a boat. The wafers which have undergone the coating treatment are loaded into the boat by a conveying member in the interface section. The conveying member and the boat are surrounded by a surrounding space formed by a casing at the interface section. A circulation line is combined with an air supply and exhaust system, for circulating air in the surrounding space.
    Type: Grant
    Filed: August 5, 1996
    Date of Patent: March 10, 1998
    Assignees: Tokyo Electron Limited, Tokyo Electron Kyushu Limited
    Inventors: Mitsuhiro Nanbu, Naruaki Iida, Hideaki Gotou, Masanori Tateyama, Yuji Yoshimoto, Tomoko Ishimoto, Hidetami Yaegashi, Yasunori Kawakami, Takahide Fukuda, Akihiro Fujimoto, Takashi Takekuma, Hiroyuki Matsukawa
  • Patent number: 5664254
    Abstract: A wafer processing apparatus includes a common path, extending in a Y-axis direction, in which one wafer or a plurality of wafers are conveyed, a plurality of process units stacked on both sides of the common path to constitute multi-stage structures, a main handler moved in the common path in the Y-axis direction and rotated about a Z axis at an angle .theta.
    Type: Grant
    Filed: January 31, 1996
    Date of Patent: September 2, 1997
    Assignee: Tokyo Electron Limited
    Inventors: Jun Ohkura, Naruaki Iida, Hiroyuki Kudou, Masanori Tateyama, Yasuhiro Sakamoto
  • Patent number: 5565034
    Abstract: A substrate processing apparatus according to this invention includes an interface section having a first transfer member for transferring an object from a coating process section for applying a process solution to the object in accordance with a single sheet process to an object holding member, and a moving member for detachably supplying a plurality of object holding member and simultaneously moving the plurality of object holding member, and a heat-treatment section having a second transfer member for transferring the object placed on the object holding member to a heat-treatment section for heat-treating the plurality of objects, which have undergone the coating process, in accordance with a batch process.
    Type: Grant
    Filed: October 28, 1994
    Date of Patent: October 15, 1996
    Assignees: Tokyo Electron Limited, Tokyo Electron Kyushu Limited
    Inventors: Mitsuhiro Nanbu, Naruaki Iida, Hideaki Gotou, Masanori Tateyama, Yuji Yoshimoto, Tomoko Ishimoto, Hidetami Yaegashi, Yasunori Kawakami, Takahide Fukuda, Akihiro Fujimoto, Takashi Takekuma, Hiroyuki Matsukawa
  • Patent number: 5460478
    Abstract: An apparatus for coating and developing a resist on a wafer comprises a carrier station provided with a plurality of carriers for receiving wafers and transfer tables, a processing section having a plurality of processing units, and a transfer robot provided between the carrier station and the processing section. The robot comprises a plate-shaped arm for transferring wafers between the carriers and the transfer tables, and two horseshoe-shaped forks for transferring wafers between the processing units and transfer tables. The robot is movable along a transfer path so as to make the arm and forks face the carriers, processing units and transfer tables.
    Type: Grant
    Filed: March 13, 1995
    Date of Patent: October 24, 1995
    Assignees: Tokyo Electron Limited, Tokyo Electron Kyushu Limited
    Inventors: Masami Akimoto, Kazutoshi Yoshioka, Naruaki Iida
  • Patent number: 5364222
    Abstract: An apparatus for coating and developing a resist on a wafer comprises a carrier station provided with a plurality of carriers for receiving wafers and transfer tables, a processing section having a plurality of processing units, and a transfer robot provided between the carrier station and the processing section. The robot comprises a plate-shaped arm for transferring wafers between the carriers and the transfer tables, and two horseshoe-shaped forks for transferring wafers between the processing units and transfer tables. The robot is movable along a transfer path so as to make the arm and forks face the carriers, processing units and transfer tables.
    Type: Grant
    Filed: February 5, 1993
    Date of Patent: November 15, 1994
    Assignees: Tokyo Electron Limited, Tokyo Electron Kyushu Limited
    Inventors: Masami Akimoto, Kazutoshi Yoshioka, Naruaki Iida