Patents by Inventor Towl Ikeda

Towl Ikeda 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: 6033479
    Abstract: A process gas delivery system incorporating a cleaning solution delivery subsystem for chemical vapor deposition. The system includes a slanted cleaning solution feed pipe for introducing a cleaning solution into the process gas delivery system and for disposal of waste cleaning solution from the process gas delivery system. Automatic determination of maintenance time may be accomplished by using an optical sensor provided on the process gas delivery pipe that detects the accumulation of the deposition material within the piping. The sensor may also be used to detect the cleaning solution residue inside the piping after cleaning and the liquid level during deposition.
    Type: Grant
    Filed: April 22, 1998
    Date of Patent: March 7, 2000
    Assignee: Applied Materials, Inc.
    Inventor: Towl Ikeda
  • Patent number: 5819683
    Abstract: There is provided a trap apparatus, which is inserted in a vacuum exhaust system sucking and discharging an exhaust gas from a process apparatus by a vacuum pump, for trapping a tramp material contained in the exhaust gas, said trap apparatus comprising, a trapping passage container inserted in the exhaust passage, at the upstream side of the vacuum pump, and a heating trap, housed in the trapping passage container, for heating the exhaust gas to a predetermined temperature while the heating trap is brought into contact with the exhaust gas flowing, thereby subjecting the tramp material in the exhaust gas to pyrolysis. Thus, the unaffected process gas circulated through the exhaust passage is touched by the heating trap and pyrolytically decomposed, and separated metal adheres to the heating trap so as to be trapped thereby.
    Type: Grant
    Filed: April 26, 1996
    Date of Patent: October 13, 1998
    Assignee: Tokyo Electron Limited
    Inventors: Towl Ikeda, Takashi Horiuchi
  • Patent number: 5730804
    Abstract: A process gas supply apparatus according to the invention comprises a supply pipe line connecting a supply source containing an organic aluminum metallic compound in a liquid state, to a process device for forming a film on an object using the organic aluminum metallic compound, a force-feed device for force-feeding, through the supply pipe line, the organic aluminum metallic compound contained in the supply source, a vaporizing device provided across the supply pipe line for vaporizing the force-fed organic aluminum metallic compound of the liquid state, a purge gas introduction device connected to the supply pipe line for introducing a pressurized purge gas into the supply pipe line, a solvent introduction device connected to the supply pipe line for introducing into the supply pipe line a solvent for dissolving the organic aluminum metallic compound, an exhaustion device connected to the supply pipe line for exhausting the supply pipe line by a negative pressure, and a control device having a plurality of
    Type: Grant
    Filed: December 26, 1996
    Date of Patent: March 24, 1998
    Assignee: Tokyo Electron Limited
    Inventors: Hisashi Gomi, Masahide Itoh, Shimpei Jinnouchi, Towl Ikeda
  • Patent number: 5676757
    Abstract: There is a gap between the respective inner regions of the end face of the cylindrical side wall and the abutting portion of the top plate, which are situated inside the seal member. Even though the top plate is bent inward by atmospheric pressure when the container is decompressed to a predetermined degree of vacuum, therefore, the abutting portion thereof cannot come into contact with the inner edge of the end face of the cylindrical side wall. Thus, if decompression and exposure to atmospheric pressure are repeated to bend the cylindrical side wall repeatedly, there is no possibility of the inner edge portion of the end face of the cylindrical side wall being separated or rubbed off to produce dust. Moreover, the cylindrical side wall and top plate are joined together in the region outside the seal member. If dust is produced by the contact between the cylindrical side wall and top plate at their junctions outside the seal member, therefore, it is prevented from entering the container by the seal member.
    Type: Grant
    Filed: April 4, 1996
    Date of Patent: October 14, 1997
    Assignee: Tokyo Electron Limited
    Inventors: Towl Ikeda, Katsumi Ishii, Yoji Iizuka
  • Patent number: 5520142
    Abstract: A gap is defined between an inner region of an end face of a first container member of a container and an inner region of an abutting portion of a second container member, the inner regions being situated inside a seal member. The respective inner regions of the end face of the first container member and the abutting portion of the second container member, which are situated inside the seal member, are prevented from coming into contact with each other when the interior of the container is decompressed. Even though the second container member is bent inward by atmospheric pressure when the container is decompressed to a predetermined degree of vacuum, therefore, the abutting portion thereof cannot come into contact with the inner edge of the end face of the first container member.
    Type: Grant
    Filed: March 24, 1995
    Date of Patent: May 28, 1996
    Assignees: Tokyo Electron Kabushiki Kaisha, Tokyo Electron Tohoku Kabushiki Kaisha
    Inventors: Towl Ikeda, Katsumi Ishii, Yoji Iizuka
  • Patent number: 5455082
    Abstract: A reduced pressure processing system includes a load lock chamber having an opening communicating with a process atmosphere in which a wafer is processed and/or the outer air atmosphere, a gate valve which is arranged at the opening to close/open the chamber with respect to the process atmosphere and/or the outer air atmosphere, a robot for loading/unloading the wafer into/from the chamber, an evacuation pump for evacuating the chamber, a heater for heating the wall of the chamber, and a controller for controlling the gate valve, the robot, the evacuation pump, and the heater.
    Type: Grant
    Filed: January 28, 1994
    Date of Patent: October 3, 1995
    Assignee: Tokyo Electron Limited
    Inventors: Masasi Saito, Teruo Iwata, Nobuo Ishii, Towl Ikeda, Hiroaki Saeki
  • Patent number: 5433780
    Abstract: A vacuum processing apparatus comprises a vacuum processing chamber for subjecting an object to be processed to a predetermined vacuum processing, an auxiliary vacuum chamber whose internal pressure is variable repeatedly between an atmospheric pressure and a process pressure, when the object is put in and taken out of the vacuum processing chamber, and exhaust system for exhausting a gas from the auxiliary vacuum chamber. The exhaust system has at least one exhaust port located apart from an internal wall surface of the auxiliary vacuum chamber.
    Type: Grant
    Filed: November 19, 1993
    Date of Patent: July 18, 1995
    Assignee: Tokyo Electron Limited
    Inventors: Towl Ikeda, Teruo Iwata
  • Patent number: 5426865
    Abstract: A vacuum creating method comprising preparing a chamber for forming a space which can be made so atmospheric and vacuous as to allow a substrate to be directly or indirectly carried in and out of the space, exhausting the chamber, filling the space in the chamber with a CO.sub.2 gas whose vapor pressure becomes larger than 1 atm at ambient temperature but smaller than 10 Torr at a temperature lower than the ambient temperature, carrying the substrate into the chamber, cooling the CO.sub.2 gas to solidify, thereby making an internal pressure in the chamber highly vacuous, carrying the substrate out of the chamber, and heating the solidified dry ice to vaporize thereby returning the internal pressure in the chamber to atmospheric pressure.
    Type: Grant
    Filed: September 3, 1993
    Date of Patent: June 27, 1995
    Assignee: Tokyo Electron Limited
    Inventors: Towl Ikeda, Teruo Iwata
  • Patent number: 5314541
    Abstract: A reduced pressure processing system includes a load lock chamber having an opening communicating with a process atmosphere in which a wafer is processed and/or the outer air atmosphere, a gate valve which is arranged at the opening to close/open the chamber with respect to the process atmosphere and/or the outer air atmosphere, a robot for loading/unloading the wafer into/from the chamber, an evacuation pump for evacuating the chamber, a heater for heating the wall of the chamber, and a controller for controlling the gate valve, the robot, the evacuation pump, and the heater.
    Type: Grant
    Filed: May 28, 1992
    Date of Patent: May 24, 1994
    Assignee: Tokyo Electron Limited
    Inventors: Masasi Saito, Teruo Iwata, Nobuo Ishii, Towl Ikeda, Hiroaki Saeki
  • Patent number: 5240556
    Abstract: According to this invention, a surface-treating apparatus capable of etching an object to be treated with high accuracy, suppressing discharging of a harmful gas deposited on the etched object in the air, and preventing the surface of the object from deposition/ attachment of reaction products and droplets is disclosed. The surface-treating apparatus includes a first process chamber for etching a loaded object to be treated by an activated etching gas, an exhausting member for setting the first process chamber at a low pressure, a cooling means for cooling the object loaded in the first process chamber, a second process chamber in which the object etched by the first process chamber is loaded, an exhausting member for setting the second process chamber at a low pressure, and an heating member for annealing the object loaded in the second process chamber.
    Type: Grant
    Filed: June 3, 1992
    Date of Patent: August 31, 1993
    Assignee: Tokyo Electron Limited
    Inventors: Yoshio Ishikawa, Junichi Arami, Towl Ikeda, Teruo Iwata
  • Patent number: 5198755
    Abstract: A probe apparatus has a quartz probe formed of a quartz probe body and a metallic pattern layer formed thereon, the quartz probe body including a plurality of probe portions having a large number of probes corresponding to an electrode array of an object of examination, lead pattern portions continuous individually with the probe portions, and a supporting portion supporting all the lead pattern portions, the quartz probe body being designed so that the longitudinal direction of each probe is inclined with respect to a crystal axis X or Y of a quartz plate by etching a Z plane of the quartz plate perpendicular to a crystal axis Z of the quartz plate, and a tester fitted with the quartz probe by means of an adapter.
    Type: Grant
    Filed: August 30, 1991
    Date of Patent: March 30, 1993
    Assignee: Tokyo Electron Limited
    Inventors: Towl Ikeda, Teruo Iwata, Issei Imahashi
  • Patent number: 5091694
    Abstract: A quartz probe apparatus having a plurality of quartz probe bodies and a metal pattern layer formed on each of the quartz probe bodies. A plurality of quartz probe bodies integrally incorporate a microprobe portion including a number of microprobes corresponding to electrode arrays of an object of examination, a pattern wiring portion connected with the microprobe portion, and an electrode pad portion connected with the pattern wiring portion. A plurality of quartz probe bodies are formed by etching a Z-plane of a quartz plate perpendicular to the crystal axis Z thereof.
    Type: Grant
    Filed: January 30, 1990
    Date of Patent: February 25, 1992
    Assignee: Tokyo Electron Limited
    Inventors: Towl Ikeda, Hisashi Koike
  • Patent number: 5061894
    Abstract: A probe device for measuring the electric characteristics of an IC chip on a wafer, etc. is disclosed. The probe device includes a unit having a micro-strip line structure in which a plurality of probes are integrally formed. The unit comprises a flexible insulating quartz base plate, a plurality of mutually insulated lead strips provided on one surface of the base plate, and a ground strip provided on the other surface of the base plate. Notches are formed in those regions of the insulating base plate, which are located between the lead strips at an end portion of the unit. The unit is supported such that the tip end portion of the unit is formed as a free-end portion and the unit is inclined by a predetermined angle toward electrode pads on the IC chip with respect to an imaginary horizontal plane. The combination of each of the lead strip, the insulating quartz base plate and the ground strip constitute a micro-strip line. At the tip end portion of the unit, each micro-strip line serves as the probe.
    Type: Grant
    Filed: December 21, 1990
    Date of Patent: October 29, 1991
    Assignee: Tokyo Electron Limited
    Inventor: Towl Ikeda
  • Patent number: 4998062
    Abstract: A probe device for measuring the electric characteristics of an IC chip on a wafer, etc. is disclosed. The probe device includes a unit having a micro-strip line structure in which a plurality of probes are integrally formed. The unit comprises a flexible insulating quartz base plate, a plurality of mutually insulated lead strips provided on one surface of the base plate, and a ground strip provided on the other surface of the base plate. Notches are formed in those regions of the insulating base plate, which are located between the lead strips at an end portion of the unit. The unit is supported such that the tip end portion of the unit is formed as a free-end portion and the unit is inclined by a predetermined angle toward electrode pads on the IC chip with respect to an imaginary horizontal plane. The combination of each of the lead strip, the insulating quartz base plate an the ground strip constitute a micro-strip line. At the tip end portion of the unit, each micro-strip line serves as the probe.
    Type: Grant
    Filed: July 13, 1989
    Date of Patent: March 5, 1991
    Assignee: Tokyo Electron Limited
    Inventor: Towl Ikeda