Patents by Inventor Jun Ookura

Jun Ookura 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).

  • Publication number: 20020176928
    Abstract: When a coating film is formed on a substrate, the inplane uniformity of the thickness of the coating film is enhanced to improve through put. Above the substrate, there are provided main and auxiliary nozzles separately movable, and monitoring means for monitoring the state of the surface of the substrate to detect the occurrence of an uncoated region on the surface of the substrate. On the basis of previously prepared coating data, a coating liquid is spirally applied on the substrate by the main nozzle. Then, if the monitoring means detects the occurrence of the uncoated region in a coated region in which the coating liquid has been applied by the main nozzle, a control part detects whether it is required to supply the coating liquid to the uncoated region. If it is required, the coating liquid is supplied to the uncoated region by the auxiliary nozzle. On the other hand, the portion of occurrence of the uncoated region has been grasped by the control part.
    Type: Application
    Filed: May 23, 2002
    Publication date: November 28, 2002
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Tomohide Minami, Shinichi Sugimoto, Takahiro Kitano, Jun Ookura, Hiroaki Kurishima
  • Publication number: 20020150679
    Abstract: A coating solution is sprayed on a rotating wafer held horizontally from a nozzle provided above the wafer while the nozzle is travelling over the wafer from a wafer center to a wafer outer area, thus spirally spraying the coating solution on the wafer. The nozzle stops when the coating solution has reached the wafer outer area and the coating solution is sprayed in circle on the wafer outer area while the wafer is rotating. A coating solution including a component of a coating film and a solvent may be sprayed on a first area to be coated of the wafer and the coating solution and a solvent for the coating film may be sprayed on a second edge area located outside the first area of the wafer.
    Type: Application
    Filed: April 16, 2002
    Publication date: October 17, 2002
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Tomohide Minami, Shinichi Sugimoto, Takahiro Kitano, Jun Ookura, Hiroaki Kurishima
  • Patent number: 6461438
    Abstract: A substrate cooling unit comprises a cooling plate on which the substrate is placed, a cooling temperature adjusting element which adjusts the cooling plate to a predetermined temperature, a temperature controller which controls a temperature of the cooling temperature adjusting element according to a transfer function, a temperature sensor attached to the cooling plate, and a control parameter changing section which changes at least any one setting of a proportional operation coefficient, integral time or derivative time among control parameters in the transfer function based on a temperature of the cooling plate detected by the temperature sensor after the substrate that is an object to be cooled is placed on the cooling plate.
    Type: Grant
    Filed: November 16, 2000
    Date of Patent: October 8, 2002
    Assignee: Tokyo Electron Limited
    Inventors: Jun Ookura, Koji Harada
  • Publication number: 20020072025
    Abstract: Target processing temperatures for a wafer and offset values are tabulated and stored in a temperature controller in advance. When a target processing temperature is changed, a hot plate temperature corresponding to the target processing temperature for the wafer is calculated based on the offset value in the table. Based on the calculated value, a heater controller controls a heater to change the hot plate temperature. Thereby, in a substrate heat processing apparatus for performing heat processing at different temperatures, an offset value corresponding to each temperature is automatically changed, whereby the substrate can be heated at an appropriate temperature.
    Type: Application
    Filed: February 4, 2002
    Publication date: June 13, 2002
    Inventors: Jun Ookura, Koji Harada
  • Patent number: 6402509
    Abstract: Target processing temperatures for a wafer and offset values are tabulated and stored in a temperature controller in advance. When a target processing temperature is changed, a hot plate temperature corresponding to the target processing temperature for the wafer is calculated based on the offset value in the table. Based on the calculated value, a heater controller controls a heater to change the hot plate temperature. Thereby, in a substrate heat processing apparatus for performing heat processing at different temperatures, an offset value corresponding to each temperature is automatically changed, whereby the substrate can be heated at an appropriate temperature.
    Type: Grant
    Filed: September 1, 2000
    Date of Patent: June 11, 2002
    Assignee: Tokyo Electron, Limited
    Inventors: Jun Ookura, Koji Harada
  • Publication number: 20020011208
    Abstract: An apparatus for processing a substrate of the present invention comprises a holder holding a substrate, a supply pipe being supplied with a processing solution from a first end and supplying the processing solution to the substrate from a second end, a first temperature controller having a first temperature controlled water circulated inside which controls a first temperature around the second end of the supply pipe and a second temperature controller having a second temperature controlled water drained from the first temperature controller circulated inside, which controls a second temperature around the first end of the supply pipe. With such a configuration, the temperature controlled water used for controlling the temperature of the processing solution just before its application onto the substrate can be recycled for controlling the temperature of the processing solution just after being supplied to a supply pipe.
    Type: Application
    Filed: June 29, 2001
    Publication date: January 31, 2002
    Inventors: Seiki Ishida, Junichi Iwano, Jun Ookura, Michishige Saito
  • Patent number: 6332751
    Abstract: In centering a transfer device so that tweezers of the transfer device transfer a substrate to a predetermined delivery position on a spin chuck when the substrate is delivered to a coating unit by means of the transfer device, the substrate is transferred onto the spin chuck in the coating unit by means of the tweezers, a positional deviation amount of the substrate with respect to the delivery position on the chuck is detected by a detecting device, a positional deviation amount of the tweezers is computed based on this detection value, and a position at which the tweezers deliver the substrate is corrected based on the positional deviation amount of the tweezers. Thus, centering of the substrate transfer device can be performed automatically in a short time.
    Type: Grant
    Filed: March 30, 2000
    Date of Patent: December 25, 2001
    Assignee: Tokyo Electron Limited
    Inventors: Seiji Kozawa, Naruaki Iida, Jun Ookura
  • Publication number: 20010051837
    Abstract: A system for successively extracting unprocessed substrates from a cassette, successively conveying the extracted substrates to a plurality of processing units, causing the processing units to process the substrates, and successively returning processed substrates to a cassette is disclosed. In the system, corresponding to a recipe that contains process conditions for each of at least one lot, a process start prediction time at which processes of each lot start and a process completion prediction time at which processes for each lot are completed are calculated for at least two processes. Corresponding to the process start prediction time and the process completion prediction time, at least one of optimum processing units that optimize processes for each lot is selected for each lot.
    Type: Application
    Filed: June 6, 2001
    Publication date: December 13, 2001
    Inventors: Masanori Tateyama, Kenichi Okubo, Jun Ookura