Patents by Inventor Hiroshi Tomita

Hiroshi Tomita 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: 9201194
    Abstract: Provided is an optical module capable of inhibiting both the displacement of an optical axis caused by thermal changes and property degradation in an optical functional circuit. The optical module includes: a planar lightwave circuit including a waveguide-type optical functional circuit and a waveguide region where only an optical waveguide is formed in contact with a side, wherein an emission end face where output light is emitted from the optical functional circuit, or an entrance end face where input light is entered to the optical functional circuit is formed in contact with the side; a fixing mount employed to hold the planar lightwave circuit only in the portion where the waveguide area is located; and an auxiliary mount employed to hold the planar lightwave circuit in contact with a side that is opposite the side where the emission end face or the entrance end face.
    Type: Grant
    Filed: January 7, 2014
    Date of Patent: December 1, 2015
    Assignees: NTT Electronics Corporation, Nippon Telegraph and Telephone Corporation
    Inventors: Naoki Ooba, Hiroshi Tomita, Kenji Kobayashi, Yuko Kawajiri, Kenya Suzuki
  • Patent number: 9177781
    Abstract: A plasma processing method in which performing a plasma etching on metal layers formed on a substrate is conducted to form a pattern having the metal layers in a stacked structure, and then a deposit containing a metal that forms the metal layers and being deposited on a sidewall portion of the pattern is removed, the method includes: forming a protective layer by forming an oxide or chloride of the metal on sidewall portions of the metal layers; removing the deposit by applying a plasma of a gas containing fluorine atoms; and reducing the oxide or chloride of the metal by applying a plasma containing hydrogen after forming the protective layer and removing the deposit.
    Type: Grant
    Filed: July 8, 2011
    Date of Patent: November 3, 2015
    Assignees: TOKYO ELECTRON LIMITED, KABUSHIKI KAISHA TOSHIBA
    Inventors: Shigeru Tahara, Eiichi Nishimura, Fumiko Yamashita, Hiroshi Tomita, Tokuhisa Ohiwa, Hisashi Okuchi, Mitsuhiro Omura
  • Patent number: 9164377
    Abstract: According to one embodiment, provided is a method for cleaning an imprinting mask including a template having an uneven pattern, a base layer disposed on the template, and a sacrificial film disposed on the base layer. In the method for cleaning the imprinting mask, the sacrificial film is removed, and a contaminant adhered on the sacrificial film is removed from the template pattern.
    Type: Grant
    Filed: July 10, 2013
    Date of Patent: October 20, 2015
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hiroshi Tomita, Hidekazu Hayashi
  • Patent number: 9146479
    Abstract: In the present invention, a planar distribution of pixel values in a picked-up substrate image is decomposed into a plurality of pixel value distribution components through use of a Zernike polynomial for each of substrate images; Zernike coefficients of the pixel value distribution components decomposed through use of the Zernike polynomial are calculated; a median value and values deviated from the median value by a predetermined value or more are extracted for every Zernike coefficients having a same couple of degrees from the calculated Zernike coefficients; substrate images having the extracted values are specified; and a substrate image being a defect inspection reference is created by combining the specified substrate images.
    Type: Grant
    Filed: November 19, 2013
    Date of Patent: September 29, 2015
    Assignee: Tokyo Electron Limited
    Inventors: Izumi Hasegawa, Hiroshi Tomita, Shuji Iwanaga, Tadashi Nishiyama
  • Patent number: 9126229
    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: Grant
    Filed: May 10, 2012
    Date of Patent: September 8, 2015
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Shigeru Tahara, Eiichi Nishimura, Hiroshi Tomita, Tokuhisa Ohiwa, Hisashi Okuchi, Mitsuhiro Omura
  • Publication number: 20150247970
    Abstract: Disclosed is an optical circuit including a transparent plate, which is light-transmittable, and a light shielding plate, which is adhered to the transparent plate with an adhesive and has an opening through which incident light passes, and in which the aspect facing to the opening has, on the side opposite to the transparent plate, projections in an overhang shape toward the center of the opening.
    Type: Application
    Filed: September 17, 2013
    Publication date: September 3, 2015
    Applicants: NTT ELECTRONICS CORPORATION, NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Hiroshi Tomita, Kenji Kobayashi, Naoki Ooba, Toru Miura
  • Publication number: 20150219994
    Abstract: In one embodiment, a coating and developing apparatus includes a processing block having two early-stage coating unit blocks, two later-stage coating unit blocks and two developing unit blocks, each unit blocks being vertically stacked on each other, The apparatus has at least two operation modes M1 and M2 adapted for abnormality. In mode M1 the processing module that processed the abnormal substrate in the developing unit blocks is identified, and subsequent substrates are transported to the processing module or modules, of the same type as the identified processing module, other than the identified processing module. In mode M2, the developing unit block that processed the abnormal substrate is identified, and subsequent substrates are transported to the developing unit block other than the identified developing unit block.
    Type: Application
    Filed: February 19, 2015
    Publication date: August 6, 2015
    Inventors: Nobuaki MATSUOKA, Akira MIYATA, Shinichi HAYASHI, Suguru ENOKIDA, Hiroshi TOMITA, Makoto HAYAKAWA, Tatsuhei YOSHIDA
  • Patent number: 9097681
    Abstract: According to an embodiment of the present disclosure, an apparatus of inspecting an overlapped substrate obtained by bonding substrates together is provided. The apparatus includes a first holding unit configured to hold and rotate the overlapped substrate, and a displacement gauge configured to measure displacements of peripheral sides of a first substrate and a second substrate constituting the overlapped substrate while rotating the overlapped substrate held by the first holding unit.
    Type: Grant
    Filed: August 15, 2013
    Date of Patent: August 4, 2015
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Shinji Koga, Akinori Miyahara, Hiroshi Tomita, Shuji Iwanaga, Takeshi Tamura
  • Publication number: 20150206773
    Abstract: In accordance with a substrate processing method according to the present embodiment, ultrapure water is supplied to a surface of a substrate. A fluoroalcohol-containing solvent is supplied to the surface of the substrate, to which the ultrapure water has been attached. A first solvent, which has solubility in the fluoroalcohol-containing solvent and is different from the fluoroalcohol-containing solvent, is supplied to the surface of the substrate, to which the fluoroalcohol-containing solvent has been attached. The substrate, to which the first solvent has been attached, is introduced into a chamber, the first solvent on the surface of the substrate is substituted with a supercritical fluid, and then, a pressure within the chamber is reduced and the supercritical fluid is changed into gas. The substrate is brought out from the chamber.
    Type: Application
    Filed: March 7, 2014
    Publication date: July 23, 2015
    Inventors: Hidekazu HAYASHI, Yohei Sato, Hisashi Okuchi, Hiroshi Tomita
  • Patent number: 9065064
    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: Grant
    Filed: March 6, 2013
    Date of Patent: June 23, 2015
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Hiroshi Tomita, Hisashi Okuchi, Yasuhito Yoshimizu, Yusuke Tanaka
  • Patent number: 9039863
    Abstract: Disclosed is a liquid processing apparatus capable of accurately determining a holding state of a substrate without being influenced by, for example, material or surface condition of a substrate. The liquid processing apparatus includes a substrate holding unit that holds a substrate, a camera that photographs a region where a peripheral edge portion of substrate is present when substrate is properly held by the substrate holding unit, and a control unit that determines a holding state of the substrate held by the substrate holding unit based on an image photographed by the camera.
    Type: Grant
    Filed: November 15, 2012
    Date of Patent: May 26, 2015
    Assignee: Tokyo Electron Limited
    Inventors: Shuhei Matsumoto, Shuji Iwanaga, Hiroshi Tomita, Kenji Nakamizo, Satoshi Morita
  • Publication number: 20150135549
    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: January 29, 2015
    Publication date: May 21, 2015
    Inventors: Yohei Sato, Hisashi Okuchi, Hiroshi Tomita, Hidekazu Hayashi, Linan Ji
  • Publication number: 20150125068
    Abstract: A potential trouble can be in advance suppressed by analyzing a defect of a wafer. A defect analyzing apparatus of analyzing a defect of a substrate includes an imaging unit configured to image target substrates; a defect feature value extracting unit configured to extract a defect feature value in a surface of the substrate based on the substrate image; a defect feature value accumulating unit configured to calculate an accumulated defect feature value with respect to the substrates to create an accumulation data AH; a defect determination unit configured to determine whether the accumulated defect feature value exceeds a preset critical value; and an output display unit configured to output a determination result from the defect determination unit.
    Type: Application
    Filed: November 6, 2014
    Publication date: May 7, 2015
    Inventors: Shuji Iwanaga, Tadashi Nishiyama, Hiroshi Tomita, Izumi Hasegawa
  • Patent number: 9026240
    Abstract: A coating and developing treatment apparatus includes a substrate transfer mechanism; and a defect inspection section. A transfer control part controls transfer of a substrate. A defect classification part classifies a defect based on the state of the defect. A storage part stores a transfer route of the substrate by the substrate transfer mechanism when the substrate has been treated by treatment sections. A defective treatment specification part specifies, based on a kind of the defect classified by the defect classification part and the transfer route of the substrate stored in the storage part, a treatment section which is a cause of occurrence of the classified defect, and judges presence or absence of an abnormality of the specified treatment section. The transfer control part controls the substrate transfer mechanism to transfer a substrate bypassing the treatment section which has been judged to be abnormal by the defective treatment specification part.
    Type: Grant
    Filed: October 26, 2011
    Date of Patent: May 5, 2015
    Assignee: Tokyo Electron Limited
    Inventors: Makoto Hayakawa, Hiroshi Tomita, Tatsuhei Yoshida
  • Patent number: 9025852
    Abstract: In one embodiment, a substrate inspection apparatus performs, in its maintenance mode, operations including: guiding a light emitted from an illuminating unit to an imaging device via a light-guiding member disposed in a casing; judging whether or not a level of a brightness signal obtained by the imaging device falls within a predetermined allowable range when a light emitted from the illuminating unit falls on the imaging device via the light-guiding member; and alarming, if it is judged that the value of the brightness signal is out of the predetermined allowable range, that replacement of the illuminating unit is required.
    Type: Grant
    Filed: May 29, 2012
    Date of Patent: May 5, 2015
    Assignee: Tokyo Electron Limited
    Inventors: Kazuya Hisano, Hiroshi Tomita, Norihisa Koga, Tadashi Nishiyama, Makoto Hayakawa
  • Patent number: 8985880
    Abstract: In one embodiment, a coating and developing apparatus includes a processing block having two early-stage coating unit blocks, two later-stage coating unit blocks and two developing unit blocks, each unit blocks being vertically stacked on each other. The apparatus has at least two operation modes M1 and M2 adapted for abnormality. In mode M1 the processing module that processed the abnormal substrate in the developing unit blocks is identified, and subsequent substrates are transported to the processing module or modules, of the same type as the identified processing module, other than the identified processing module. In mode M2, the developing unit block that processed the abnormal substrate is identified, and subsequent substrates are transported to the developing unit block other than the identified developing unit block.
    Type: Grant
    Filed: July 7, 2011
    Date of Patent: March 24, 2015
    Assignee: Tokyo Electron Limited
    Inventors: Nobuaki Matsuoka, Akira Miyata, Shinichi Hayashi, Suguru Enokida, Hiroshi Tomita, Makoto Hayakawa, Tatsuhei Yoshida
  • Patent number: 8961696
    Abstract: According to one embodiment, a method for cleaning a semiconductor substrate comprises supplying water vapor to a surface of a semiconductor substrate on which a concave-convex pattern is formed while heating the semiconductor substrate at a predetermined temperature, cooling the semiconductor substrate after stopping the heating and the supply of the water vapor and freezing water on the semiconductor substrate, after freezing the water, supplying pure water onto the semiconductor substrate and melting a frozen film, and after melting the frozen film, drying the semiconductor substrate.
    Type: Grant
    Filed: March 19, 2012
    Date of Patent: February 24, 2015
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hiroshi Tomita, Minako Inukai, Hiaashi Okuchi, Linan Ji
  • Patent number: 8950082
    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: Grant
    Filed: August 31, 2012
    Date of Patent: February 10, 2015
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yohei Sato, Hisashi Okuchi, Hiroshi Tomita, Hidekazu Hayashi, Linan Ji
  • Patent number: 8865563
    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: Grant
    Filed: March 6, 2013
    Date of Patent: October 21, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yasuhito Yoshimizu, Hisashi Okuchi, Hiroshi Tomita
  • Patent number: 8855402
    Abstract: An image creation method of creating a filter image for removing a pseudo defect to inspect presence/absence of a defect on a substrate includes a filter image creation step of creating the filter image by replacing a picture element value of any one of picture elements located on a circumference of a circle about a center position of a registered image with a maximum value of picture element values of a plurality of picture elements selected from among the picture elements located on the circumference.
    Type: Grant
    Filed: February 28, 2012
    Date of Patent: October 7, 2014
    Assignee: Tokyo Electron Limited
    Inventors: Hiroshi Tomita, Kazuya Hisano, Tadashi Nishiyama