Patents by Inventor Hisashi Okuchi

Hisashi Okuchi 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: 8695145
    Abstract: Transferring plural semiconductor substrates under a state being held with predetermined intervals; holding the plural semiconductor substrates with roll brushes provided in plural pieces by each front side and back side of the plural semiconductor substrates, longitudinal directions of the roll brushes being oriented in parallel relative to the front side and the back side; and cleaning the plural semiconductor substrates by rotating the plural roll brushes.
    Type: Grant
    Filed: March 16, 2012
    Date of Patent: April 15, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yasuhito Yoshimizu, Hisashi Okuchi, Hiroshi Tomita
  • Publication number: 20140083979
    Abstract: A deposit removal method for removing deposits deposited on the surface of a pattern formed on a substrate by etching, includes an oxygen plasma treatment process for exposing the substrate to oxygen plasma while heating the substrate and a cycle treatment process for, after the oxygen plasma treatment process, repeating multiple cycles of a first period and a second period. In the first period, the substrate is exposed to a mixture of hydrogen fluoride gas and alcohol gas inside a processing chamber and the partial pressure of the alcohol gas is set to the first partial pressure. In the second period, the partial pressure of the alcohol gas is set to the second partial pressure lower than the first partial pressure by exhausting the inside of the processing chamber.
    Type: Application
    Filed: May 10, 2012
    Publication date: March 27, 2014
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Shigeru Tahara, Eiichi Nishimura, Hiroshi Tomita, Tokuhisa Ohiwa, Hisashi Okuchi, Mitsuhiro Omura
  • Publication number: 20140065555
    Abstract: According to one embodiment, a manufacturing method includes forming a desired pattern containing an uneven pattern on a substrate, subjecting the surface of the desired pattern to a water repellent treatment, forming a resist film on the desired pattern, performing an exposure treatment to expose the uneven pattern, rinsing the substrate with water, and drying the substrate.
    Type: Application
    Filed: March 6, 2013
    Publication date: March 6, 2014
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yasuhito YOSHIMIZU, Hiroshi TOMITA, Hisashi OKUCHI
  • Publication number: 20140065765
    Abstract: According to one embodiment, the manufacturing method of a functional element includes filling a solvent comprising hydrogen gas and having organic molecules dispersed therein into a gap between the first electrode and the second electrode formed facing the first electrode, and forming an organic layer containing the organic molecules mentioned above between the first electrode and the second electrode.
    Type: Application
    Filed: March 6, 2013
    Publication date: March 6, 2014
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Hiroshi Tomita, Hisashi Okuchi, Yasuhito Yoshimizu, Yusuke Tanaka
  • Publication number: 20140020721
    Abstract: A substrate processing method and apparatus for preventing evaporation of an anti-drying fluorine-containing organic solvent from a substrate during transportation of the substrate into a processing container and can prevent decomposition of a fluorine-containing organic solvent in the processing container. A substrate, the surface of which is covered with a first fluorine-containing organic solvent, is carried into a processing container. The first fluorine-containing organic solvent is removed from the substrate surface by forming a high-pressure fluid atmosphere of a mixture of the first fluorine-containing organic solvent and a second fluorine-containing organic solvent, having a lower boiling point than the first fluorine-containing organic solvent, in the processing container e.g. by supplying a high-pressure fluid of the second fluorine-containing organic solvent into the processing container.
    Type: Application
    Filed: July 15, 2013
    Publication date: January 23, 2014
    Inventors: Hidekazu HAYASHI, Yohei SATO, Hisashi OKUCHI, Hiroshi TOMITA, Kazuyuki MITSUOKA, Gen YOU, Hiroki OHNO, Takehiko ORII, Takayuki TOSHIMA
  • Publication number: 20130249062
    Abstract: A method of forming an embedded film comprises depositing a first layer on a second layer that is disposed on a substrate and includes a material different from materials included in the first layer, forming an aperture through the first layer and into the second layer, the aperture having a side surface that includes an exposed portion of the first layer and an exposed portion of the second layer, bringing a material that includes organic molecules into contact with the exposed portion of the first layer and the exposed portion of the second layer to form a monomolecular film that covers the side surface, and forming the embedded film in the aperture with a material having a high enough affinity to the monomolecular film to substantially fill the aperture.
    Type: Application
    Filed: March 6, 2013
    Publication date: September 26, 2013
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yasuhito YOSHIMIZU, Hisashi OKUCHI, Hiroshi TOMITA
  • Publication number: 20130154087
    Abstract: According to one embodiment, a method for forming an interconnection pattern includes forming an insulating pattern, forming a self-assembled film, and forming a conductive layer. The insulating pattern has a side surface on a major surface of a matrix. The self-assembled film has an affinity with a material of the insulating pattern on the side surface of the insulating pattern. The forming the conductive layer includes depositing a conductive material on a side surface of the self-assembled film.
    Type: Application
    Filed: June 18, 2012
    Publication date: June 20, 2013
    Inventors: Yasuhito YOSHIMIZU, Satoshi Wakatsuki, Hisashi Okuchi, Atsuko Sakata, Hiroshi Tomita
  • Publication number: 20130122706
    Abstract: According to one embodiment, a method of manufacturing of a semiconductor device is provided. In the method, a front surface of a semiconductor substrate and a front surface of a support substrate are bonded to each other by an adhesive. A part of a circumferential part of the support substrate is subjected to water-repellent treatment to thereby form a water-repellent area on the part of the circumferential part in such a manner that the water-repellent area and an end face of the adhesive are in contact with each other. The semiconductor substrate is removed from a rear surface side by wet etching.
    Type: Application
    Filed: March 23, 2012
    Publication date: May 16, 2013
    Inventors: Hisashi OKUCHI, Hidekazu Hayashi, Kentaro Shimayama, Hiroshi Tomita
  • Patent number: 8435903
    Abstract: In one embodiment, a method for treating a surface of a semiconductor substrate is disclosed. The semiconductor substrate has a first pattern covered by a resist and a second pattern not covered by the resist. The method includes supplying a resist-insoluble first chemical solution onto a semiconductor substrate to subject the second pattern to a chemical solution process. The method includes supplying a mixed liquid of a water repellency agent and a resist-soluble second chemical solution onto the semiconductor substrate after the supply of the first chemical solution, to form a water-repellent protective film on a surface of at least the second pattern and to release the resist. In addition, the method can rinse the semiconductor substrate using water after the formation of the water-repellent protective film, and dry the rinsed semiconductor substrate.
    Type: Grant
    Filed: March 22, 2011
    Date of Patent: May 7, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yoshihiro Ogawa, Shinsuke Kimura, Tatsuhiko Koide, Hisashi Okuchi, Hiroshi Tomita
  • Publication number: 20130065400
    Abstract: According to one embodiment, an etching method includes: supplying an etching-resistant material; and etching the silicon nitride film. The supplying includes supplying the etching-resistant material to a processing surface including a surface of a silicon nitride film and a surface of a non-etching film, the non-etching film including a material different from the silicon nitride film. The etching includes etching the silicon nitride film using an etchant in a state of the etching-resistant material being formed relatively more densely on the surface of the non-etching film than on the surface of the silicon nitride film.
    Type: Application
    Filed: March 20, 2012
    Publication date: March 14, 2013
    Inventors: Yasuhito Yoshimizu, Hisashi Okuchi, Hiroshi Tomita
  • Publication number: 20130061492
    Abstract: According to one embodiment, a supercritical drying apparatus comprises a chamber being hermetically sealable and configured to store a semiconductor substrate, a heater configured to heat an inner side of the chamber, a supply unit configured to supply carbon dioxide to the chamber, a discharge unit configured to discharge carbon dioxide from the chamber, and a rotation unit configured to rotate the chamber by an angle equal to or greater than 90 degrees and equal to or smaller than 180 degrees with respect to the horizontal direction.
    Type: Application
    Filed: March 19, 2012
    Publication date: March 14, 2013
    Inventors: Hisashi OKUCHI, Hidekazu HAYASHI, Linan JI, Yohei SATO, Hiroshi TOMITA
  • Publication number: 20130055584
    Abstract: According to one embodiment, a supercritical drying method for a semiconductor substrate comprises introducing a semiconductor substrate, a surface of the semiconductor substrate being wet with a water-soluble organic solvent, to the inside of a chamber, hermetically sealing the chamber and increasing a temperature inside the chamber to not lower than a critical temperature of the water-soluble organic solvent, thereby bringing the water-soluble organic solvent into a supercritical state, decreasing a pressure inside the chamber and changing the water-soluble organic solvent in the supercritical state to a gas, thereby discharging the water-soluble organic solvent from the chamber, starting a supply of an inert gas into the chamber as the pressure inside the chamber decreases to atmospheric pressure, and cooling the semiconductor substrate in a state where the inert gas exists inside the chamber.
    Type: Application
    Filed: August 31, 2012
    Publication date: March 7, 2013
    Inventors: Yohei Sato, Hisashi Okuchi, Hiroshi Tomita, Hidekazu Hayashi, Linan Ji
  • Patent number: 8375964
    Abstract: A template cleaning method for cleaning a template for nanoimprint, according to an embodiment of the present invention includes placing a wafer on a stage provided in a chamber, cleaning the wafer placed on the stage, inspecting the wafer for particles after the cleaning of the wafer, placing the template on the stage after the inspection of the wafer, and cleaning the template placed on the stage.
    Type: Grant
    Filed: September 15, 2009
    Date of Patent: February 19, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hiroshi Tomita, Hisashi Okuchi, Minako Inukai
  • Publication number: 20130037055
    Abstract: Transferring plural semiconductor substrates under a state being held with predetermined intervals; holding the plural semiconductor substrates with roll brushes provided in plural pieces by each front side and back side of the plural semiconductor substrates, longitudinal directions of the roll brushes being oriented in parallel relative to the front side and the back side; and cleaning the plural semiconductor substrates by rotating the plural roll brushes.
    Type: Application
    Filed: March 16, 2012
    Publication date: February 14, 2013
    Inventors: Yasuhito YOSHIMIZU, Hisashi Okuchi, Hiroshi Tomita
  • Patent number: 8372212
    Abstract: According to one embodiment, a supercritical drying method comprises cleaning a semiconductor substrate with a chemical solution, rinsing the semiconductor substrate with pure water after the cleaning, changing a liquid covering a surface of the semiconductor substrate from the pure water to alcohol by supplying the alcohol to the surface after the rinsing, guiding the semiconductor substrate having the surface wetted with the alcohol into a chamber, discharging oxygen from the chamber by supplying an inert gas into the chamber, putting the alcohol into a supercritical state by increasing temperature in the chamber to a critical temperature of the alcohol or higher after the discharge of the oxygen, and discharging the alcohol from the chamber by lowering pressure in the chamber and changing the alcohol from the supercritical state to a gaseous state. The chamber contains SUS. An inner wall face of the chamber is subjected to electrolytic polishing.
    Type: Grant
    Filed: February 9, 2012
    Date of Patent: February 12, 2013
    Assignees: Kabushiki Kaisha Toshiba, Tokyo Electron Limited
    Inventors: Yohei Sato, Hisashi Okuchi, Hiroshi Tomita, Hidekazu Hayashi, Yukiko Kitajima, Takayuki Toshima, Mitsuaki Iwashita, Kazuyuki Mitsuoka, Gen You, Hiroki Ohno, Takehiko Orii
  • Publication number: 20130019905
    Abstract: According to one embodiment, a supercritical drying method for a semiconductor substrate, comprises introducing the semiconductor substrate into a chamber in a state, a surface of the semiconductor substrate being wet with alcohol, substituting the alcohol on the semiconductor substrate with a supercritical fluid of carbon dioxide by impregnating the semiconductor substrate to the supercritical fluid in the chamber, and discharging the supercritical fluid and the alcohol from the chamber and reducing a pressure inside the chamber. The method further comprises performing a baking treatment by supplying an oxygen gas or an ozone gas to the chamber after the reduction of the pressure inside the chamber.
    Type: Application
    Filed: March 15, 2012
    Publication date: January 24, 2013
    Inventors: Linan JI, Hidekazu Hayashi, Hiroshi Tomita, Hisashi Okuchi, Yohei Sato, Takayuki Toshima, Mitsuaki Iwashita, Kazuyuki Mitsuoka, Gen You, Hiroki Ohno, Takehiko Orii
  • Publication number: 20120304485
    Abstract: A substrate processing method and apparatus which can remove an anti-drying liquid, which has entered a three-dimensional pattern with recessed portions formed in a substrate, in a relatively short time. The substrate processing method includes the steps of: carrying a substrate, having a three-dimensional pattern formed in a surface, into a processing container, said pattern being covered with an anti-drying liquid that has entered the recessed portions of the pattern; heating the substrate and supplying a pressurizing gas or a fluid in a high-pressure state into the processing container, thereby forming a high-pressure atmosphere in the processing container before the anti-drying liquid vaporizes to such an extent as to cause pattern collapse and bringing the anti-drying liquid into a high-pressure state while keeping the liquid in the recessed portions of the pattern; and thereafter discharging a fluid in a high-pressure state or a gaseous state from the processing container.
    Type: Application
    Filed: May 29, 2012
    Publication date: December 6, 2012
    Applicants: Tokyo Electron Limited, Kabushiki Kaisha Toshiba
    Inventors: Hidekazu Hayashi, Yohei Sato, Hisashi Okuchi, Hiroshi Tomita, Kazuyuki Mitsuoka, Mitsuaki Iwashita, Takehiko Orii, Gen You, Hiroki Ohno, Takayuki Toshima
  • Publication number: 20120247516
    Abstract: According to one embodiment, a supercritical drying method comprises cleaning a semiconductor substrate with a chemical solution, rinsing the semiconductor substrate with pure water after the cleaning, changing a liquid covering a surface of the semiconductor substrate from the pure water to alcohol by supplying the alcohol to the surface after the rinsing, guiding the semiconductor substrate having the surface wetted with the alcohol into a chamber, discharging oxygen from the chamber by supplying an inert gas into the chamber, putting the alcohol into a supercritical state by increasing temperature in the chamber to a critical temperature of the alcohol or higher after the discharge of the oxygen, and discharging the alcohol from the chamber by lowering pressure in the chamber and changing the alcohol from the supercritical state to a gaseous state. The chamber contains SUS. An inner wall face of the chamber is subjected to electrolytic polishing.
    Type: Application
    Filed: February 9, 2012
    Publication date: October 4, 2012
    Inventors: Yohei SATO, Hisashi OKUCHI, Hiroshi TOMITA, Hidekazu HAYASHI, Yukiko KITAJIMA, Takayuki TOSHIMA, Mitsuaki IWASHITA, Kazuyuki MITSUOKA, Gen YOU, Hiroki OHNO, Takehiko ORII
  • Publication number: 20120240426
    Abstract: According to one embodiment, a supercritical drying method for a semiconductor substrate includes introducing a semiconductor substrate formed with a metal film into a chamber, the surface of the substrate being wet with alcohol, supplying a supercritical fluid of carbon dioxide into the chamber, setting a temperature inside the chamber to a predetermined temperature, to replace the alcohol on the semiconductor substrate with the supercritical fluid, and discharging the supercritical fluid and the alcohol from the chamber while keeping the temperature inside the chamber at the predetermined temperature, to lower a pressure inside the chamber. The predetermined temperature is not lower than 75° C. but lower than a critical temperature of the alcohol.
    Type: Application
    Filed: September 13, 2011
    Publication date: September 27, 2012
    Inventors: Hidekazu HAYASHI, Hiroshi Tomita, Yukiko Kitajima, Hisashi Okuchi, Yohei Sato
  • Publication number: 20120186097
    Abstract: Certain embodiments provide a supercritical drying device, comprising a sealable first vessel; a fluorine adsorbent provided inside the first vessel; a second vessel being provided inside the first vessel and housing a semiconductor substrate; a heater heating the inside of the first vessel; a pipe connected to the first vessel; and a valve provided on the pipe. Free fluorine generated by heating a fluorine containing solvent is adsorbed to the fluorine adsorbent.
    Type: Application
    Filed: June 14, 2011
    Publication date: July 26, 2012
    Inventors: Hidekazu HAYASHI, Hiroshi Tomita, Hisashi Okuchi, Yohei Sato, Yukiko Kitajima