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: 20120031892
    Abstract: Disclosed is a method of a thermal processing including a first process and a second process. The first process between first wafer (initial wafer) W1 and second wafer (next wafer) W2 (and subsequent wafers W), comprises changing a set temperature of a heating plate from a first temperature to a second temperature which is lower than the first temperature; and initiating a thermal processing for a first substrate before the temperature of the heating plate reaches the second temperature. The second process comprises changing the set temperature of the heating plate from the second temperature to a third temperature which is higher than the second temperature, after the first process for the first substrate is completed; and initiating a thermal processing for a second substrate when the temperature of the heating plate is changed from the third temperature to the second temperature after the temperature of the heating plate reached the third temperature.
    Type: Application
    Filed: July 28, 2011
    Publication date: February 9, 2012
    Inventors: Kenichi Shigetomi, Jun Ookura
  • Patent number: 7868270
    Abstract: A temperature control method is used for controlling a temperature of a hot plate, so that a measured temperature of the hot plate conforms to a target temperature thereof, in a heat processing apparatus for performing a heat process on a substrate placed on the hot plate, which is used in a coating/developing system for applying a resist coating onto the substrate to form a resist film and then performing development on the resist film after light exposure. The method includes acquiring adjustment data necessary for adjusting a reaching time defined by a time period for increasing the temperature of the substrate from a first temperature around an initial temperature to a second temperature around the target temperature; and adjusting the target temperature by use of the adjustment data thus acquired, after starting the process on the substrate.
    Type: Grant
    Filed: January 30, 2008
    Date of Patent: January 11, 2011
    Assignee: Tokyo Electron Limited
    Inventors: Jun Ookura, Eiichi Sekimoto, Hisakazu Nakayama
  • Patent number: 7755003
    Abstract: A temperature control method for a heat process on a resist film on a substrate includes first and second steps. The first step includes measuring a stepped response waveform of measured temperatures of a substrate at measurement points while changing stepwise each target temperature, then using this result to compose a pulsed response waveform with respect to a change of a pulsed target temperature, then using this result to compose a triangular response waveform with respect to a change of a triangular target temperature, and then using this result to acquire a matrix as relation information showing a relation between the target temperatures and temperatures of the substrate at measurement points.
    Type: Grant
    Filed: December 27, 2007
    Date of Patent: July 13, 2010
    Assignee: Tokyo Electron Limited
    Inventors: Jun Ookura, Eiichi Sekimoto, Hisakazu Nakayama
  • Patent number: 7510611
    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: Grant
    Filed: March 29, 2005
    Date of Patent: March 31, 2009
    Assignee: Tokyo Electron Limited
    Inventors: Tomohide Minami, Shinichi Sugimoto, Takahiro Kitano, Jun Ookura, Hiroaki Kurishima
  • Patent number: 7488505
    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: Grant
    Filed: July 8, 2004
    Date of Patent: February 10, 2009
    Assignee: Tokyo Electron Limited
    Inventors: Tomohide Minami, Shinichi Sugimoto, Takahiro Kitano, Jun Ookura, Hiroaki Kurishima
  • Publication number: 20080283515
    Abstract: A temperature control method is used for controlling a temperature of a hot plate, so that a measured temperature of the hot plate conforms to a target temperature thereof, in a heat processing apparatus for performing a heat process on a substrate placed on the hot plate, which is used in a coating/developing system for applying a resist coating onto the substrate to form a resist film and then performing development on the resist film after light exposure. The method includes acquiring adjustment data necessary for adjusting a reaching time defined by a time period for increasing the temperature of the substrate from a first temperature around an initial temperature to a second temperature around the target temperature; and adjusting the target temperature by use of the adjustment data thus acquired, after starting the process on the substrate.
    Type: Application
    Filed: January 30, 2008
    Publication date: November 20, 2008
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Jun OOKURA, Eiichi SEKIMOTO, Hisakazu NAKAYAMA
  • Publication number: 20080156785
    Abstract: A temperature control method for a heat process on a resist film on a substrate includes first and second steps. The first step includes measuring a stepped response waveform of measured temperatures of a substrate at measurement points while changing stepwise each target temperature, then using this result to compose a pulsed response waveform with respect to a change of a pulsed target temperature, then using this result to compose a triangular response waveform with respect to a change of a triangular target temperature, and then using this result to acquire a matrix as relation information showing a relation between the target temperatures and temperatures of the substrate at measurement points.
    Type: Application
    Filed: December 27, 2007
    Publication date: July 3, 2008
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Jun Ookura, Eiichi Sekimoto, Hisakazu Nakayama
  • Patent number: 6973370
    Abstract: A substrate processing apparatus can align a substrate with a high precision and a high speed by monitoring a mark formed on a surface of the substrate; operating an amount of misalignment between the center of the substrate and a rotation center of a substrate support member; determining a presence of the misalignment and adjusting the substrate such that the center of the substrate coincides with the rotation center of the substrate support member.
    Type: Grant
    Filed: June 3, 2004
    Date of Patent: December 6, 2005
    Assignee: Tokyo Electron Limited
    Inventors: Kazuhiko Ito, Kazutoshi Ishimaru, Jun Ookura, Michio Kinoshita, Yuichi Douki
  • Publication number: 20050170087
    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: March 29, 2005
    Publication date: August 4, 2005
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Tomohide Minami, Shinichi Sugimoto, Takahiro Kitano, Jun Ookura, Hiroaki Kurishima
  • Patent number: 6884294
    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: Grant
    Filed: April 16, 2002
    Date of Patent: April 26, 2005
    Assignee: Tokyo Electron Limited
    Inventors: Tomohide Minami, Shinichi Sugimoto, Takahiro Kitano, Jun Ookura, Hiroaki Kurishima
  • Publication number: 20050016818
    Abstract: A substrate processing apparatus can align a substrate with a high precision and a high speed by monitoring a mark formed on a surface of the substrate; operating an amount of misalignment between the center of the substrate and a rotation center of a substrate support member; determining a presence of the misalignment and adjusting the substrate such that the center of the substrate coincides with the rotation center of the substrate support member.
    Type: Application
    Filed: June 3, 2004
    Publication date: January 27, 2005
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Kazuhiko Ito, Kazutoshi Ishimaru, Jun Ookura, Michio Kinoshita, Yuichi Douki
  • Publication number: 20040261701
    Abstract: A coating solution is supplied to a substrate as an experimental substrate that is the same type as a product substrate while the experimental substrate is being scanned by a nozzle so as to form a line of the coating solution. The line of the coating solution is photographed by for example a CCD camera so as to obtain a contact angle of the coating solution. Using a geometric model according to the contact angle, relation data of a discharge flow amount of the coating solution nozzle at a scanning speed for a real coating process for the product substrate and an allowable range of a pitch is obtained. Relation data of the discharge flow amount of the coating solution nozzle and the pitch is pre-created for each of a plurality of targets of the film thickness. According to the relation data, the pitch is decided.
    Type: Application
    Filed: August 19, 2004
    Publication date: December 30, 2004
    Inventors: Shinji Kobayashi, Takahiro Kitano, Masateru Morikawa, Norihisa Koga, Tomohide Minami, Shinichi Sugimoto, Jun Ookura, Hiroaki Kurishima
  • Publication number: 20040241320
    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: July 8, 2004
    Publication date: December 2, 2004
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Tomohide Minami, Shinichi Sugimoto, Takahiro Kitano, Jun Ookura, Hiroaki Kurishima
  • Patent number: 6776845
    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: Grant
    Filed: May 23, 2002
    Date of Patent: August 17, 2004
    Assignee: Tokyo Electron Limited
    Inventors: Tomohide Minami, Shinichi Sugimoto, Takahiro Kitano, Jun Ookura, Hiroaki Kurishima
  • Patent number: 6686571
    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: September 10, 2002
    Date of Patent: February 3, 2004
    Assignee: Tokyo Electron Limited
    Inventors: Jun Ookura, Koji Harada
  • Patent number: 6654668
    Abstract: The temperature of a hot plate is not more than a predetermined threshold when a wafer is accurately mounted at a substrate mounting position on the hot plate, whereas the temperature of the hot plate is the predetermined threshold when the wafer is not accurately mounted at the substrate mounting position on the hot plate. Therefore, when the temperature of the hot plate is not less than the predetermined threshold when the wafer is mounted on the hot plate, it is judged that the wafer is stranded on a guide, and an alarm is given by means of a speaker or a display section.
    Type: Grant
    Filed: February 11, 2000
    Date of Patent: November 25, 2003
    Assignee: Tokyo Electron Limited
    Inventors: Koji Harada, Hisakazu Nakayama, Jun Ookura
  • Patent number: 6644965
    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: February 4, 2002
    Date of Patent: November 11, 2003
    Assignee: Tokyo Electron Limited
    Inventors: Jun Ookura, Koji Harada
  • Patent number: 6620245
    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: Grant
    Filed: June 29, 2001
    Date of Patent: September 16, 2003
    Assignee: Tokyo Electron Limited
    Inventors: Seiki Ishida, Junichi Iwano, Jun Ookura, Michishige Saito
  • Patent number: 6507770
    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: Grant
    Filed: June 6, 2001
    Date of Patent: January 14, 2003
    Assignee: Tokyo Electron Limited
    Inventors: Masanori Tateyama, Kenichi Okubo, Jun Ookura
  • Publication number: 20030005707
    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: Application
    Filed: September 10, 2002
    Publication date: January 9, 2003
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Jun Ookura, Koji Harada