Patents by Inventor Yukio Kiba

Yukio Kiba 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: 8518480
    Abstract: The present invention is a method of developing a resist film on a substrate using a developing solution at a predetermined temperature lower than room temperature, including a first cooling step of mounting and cooling the substrate on a cooling plate at a temperature lower than room temperature and higher than the predetermined temperature in a cooling apparatus; a second cooling step of then carrying the substrate into a developing apparatus and supplying a rinse solution at the predetermined temperature or lower onto the substrate to cool the substrate in the developing apparatus; a developing step of then supplying the developing solution onto the substrate and developing the resist film on the substrate to form a resist pattern in the resist film; and a cleaning step of then supplying a rinse solution at the predetermined temperature onto the substrate to clean a front surface of the substrate.
    Type: Grant
    Filed: January 11, 2011
    Date of Patent: August 27, 2013
    Assignee: Tokyo Electron Limited
    Inventors: Norifumi Sato, Yukio Kiba, Tetsushi Miyamoto, Kazuhisa Hasebe
  • Publication number: 20110183073
    Abstract: The present invention is a method of developing a resist film on a substrate using a developing solution at a predetermined temperature lower than room temperature, including a first cooling step of mounting and cooling the substrate on a cooling plate at a temperature lower than room temperature and higher than the predetermined temperature in a cooling apparatus; a second cooling step of then carrying the substrate into a developing apparatus and supplying a rinse solution at the predetermined temperature or lower onto the substrate to cool the substrate in the developing apparatus; a developing step of then supplying the developing solution onto the substrate and developing the resist film on the substrate to form a resist pattern in the resist film; and a cleaning step of then supplying a rinse solution at the predetermined temperature onto the substrate to clean a front surface of the substrate.
    Type: Application
    Filed: January 11, 2011
    Publication date: July 28, 2011
    Applicant: Tokyo Electron Limited
    Inventors: Norifumi Sato, Yukio Kiba, Tetsushi Miyamoto, Kazuhisa Hasebe
  • Patent number: 7387455
    Abstract: Rinsing nozzles 310a to 310e are moved on a wafer W while they are discharging rinsing solution 326. At that point, discharging openings 317a to 317e are contacted to developing solution 350 coated on the wafer W or rinsing solution 326 on the wafer W. Thus, the impact against the wafer W can be suppressed. As a result, pattern collapse can be prevented. In addition, a front portion of the developing solution 350 can push away the developing solution 350.
    Type: Grant
    Filed: May 16, 2003
    Date of Patent: June 17, 2008
    Assignee: Tokyo Electron Limited
    Inventors: Tetsutoshi Awamura, Yukio Kiba, Keiichi Tanaka, Takahiro Okubo, Shuuichi Nishikido
  • Publication number: 20050223980
    Abstract: Rinsing nozzles 310a to 310e are moved on a wafer W while they are discharging rinsing solution 326. At that point, discharging openings 317a to 317e are contacted to developing solution 350 coated on the wafer W or rinsing solution 326 on the wafer W. Thus, the impact against the wafer W can be suppressed. As a result, pattern collapse can be prevented. In addition, a front portion of the developing solution 350 can push away the developing solution 350.
    Type: Application
    Filed: May 16, 2003
    Publication date: October 13, 2005
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Tetsutoshi Awamura, Yukio Kiba, Keiichi Tanaka, Takahiro Okubo, Shuuichi Nishikido
  • Patent number: 6217657
    Abstract: A resist processing system includes a sensor connected for detecting the surface level of the processing solution contained in an intermediate tank, and a controller connected for controlling the fluid pressure on the basis of the surface level detected by the sensor.
    Type: Grant
    Filed: October 21, 1998
    Date of Patent: April 17, 2001
    Assignee: Tokyo Electron Limited
    Inventors: Yukio Kiba, Norio Semba, Keizo Hasebe
  • Patent number: 5939130
    Abstract: A coating film forming method for forming a resist coating film on an upper surface of a wafer held by a spin chuck in a chamber includes (a) the step of keeping preliminary correlation data representing correlation between a wafer rotating speed and the thickness of the resist coating film formed on the wafer in the chamber, (b) the step of conveying the wafer into the chamber and holding the wafer by the spin chuck, (c) the step of pouring the resist liquid onto the wafer and spin-rotating the wafer to form a resist coating film on the upper surface of the wafer, (d) the step of detecting the thickness of the formed resist coating film by a sensor, (e) the step of detecting a rotating speed of the spin chuck by a sensor, and (f) the step of, on the basis of the detected film thickness and the preliminary correlation data, correcting a set rotating speed of the spin chuck to feedback-control a resist coating process for a next wafer.
    Type: Grant
    Filed: May 27, 1997
    Date of Patent: August 17, 1999
    Assignee: Tokyo Electron Limited
    Inventors: Masatoshi Shiraishi, Yukio Kiba, Kunie Ogata
  • Patent number: 5866307
    Abstract: A resist processing method for introducing a pressurized gas into a vessel storing a solution, sending the solution from the vessel to a nozzle by way of a supply line by means of the pressurized gas, and supplying the solution from the nozzle to a substrate.
    Type: Grant
    Filed: September 11, 1997
    Date of Patent: February 2, 1999
    Assignee: Tokyo Electron Limited
    Inventors: Yukio Kiba, Norio Semba, Keizo Hasebe