Patents by Inventor Junichi Koike

Junichi Koike 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: 7633164
    Abstract: The present invention includes a liquid crystal display device having an oxide film having high adhesiveness to a substrate to thereby prevent oxidation of a wiring material or the like, and includes, an electrode or a terminal electrode having high conductivity, and a manufacturing method therefor. Consequently, in the present invention, a liquid crystal display device has an electrode terminal of a TFT substrate, wherein the electrode is formed on an insulator and is comprised of a conductive layer mainly consisting of copper and an oxide covering an outer part, further the oxide is a layered structure of transparent electrodes, the layered portion having ohmic contact, and the oxide mainly consists of manganese oxide.
    Type: Grant
    Filed: April 10, 2007
    Date of Patent: December 15, 2009
    Assignees: Tohoku University, Advanced Interconnect Materials LLC
    Inventors: Junichi Koike, Hideaki Kawakami
  • Patent number: 7626665
    Abstract: To provide a highly conductive Cu alloy which is advantageous in that an alloying element added to Cu is first reacted with oxygen contained in a gas atmosphere or solid in contact with the Cu member to form an oxide film which can prevent oxidation of Cu. The copper alloy comprises copper (Cu) containing an inevitable impurity, and an element added to the copper, wherein the added element is capable of being dissolved in the copper in an amount of 0.1 to 20 at. %, wherein the added element has an oxide formation free energy smaller than that of Cu and has a diffusion coefficient in Cu larger than the self-diffusion coefficient of Cu.
    Type: Grant
    Filed: August 30, 2005
    Date of Patent: December 1, 2009
    Assignees: Tohoku University, Advanced Interconnect Materials LLC
    Inventor: Junichi Koike
  • Publication number: 20090290116
    Abstract: The present invention includes a liquid crystal display device having an oxide film having high adhesiveness to a substrate to thereby prevent oxidation of a wiring material or the like, and includes, an electrode or a terminal electrode having high conductivity, and a manufacturing method therefor. Consequently, in the present invention, a liquid crystal display device has an electrode terminal of a TFT substrate, wherein the electrode is formed on an insulator and is comprised of a conductive layer mainly consisting of copper and an oxide covering an outer part, further the oxide is a layered structure of transparent electrodes, the layered portion having ohmic contact, and the oxide mainly consists of manganese oxide.
    Type: Application
    Filed: May 29, 2009
    Publication date: November 26, 2009
    Applicants: Tohoku University, Advanced Interconnect Materials, LLC
    Inventors: Junichi Koike, Hideaki Kawakami
  • Publication number: 20090253260
    Abstract: A semiconductor device enables a barrier layer to fully acquire a barriering property against the diffusion of Cu from a wiring main body and the diffusion of Si from an insulating film, enhances the adhesiveness of the barrier layer and the insulating film and excels in reliability of operation over a long period of time. In this invention, a semiconductor device provided on an insulating film with a wiring includes the insulating film containing silicon, a wiring main body formed of copper in a groove-like opening disposed in the insulating film, and a barrier layer formed between the wiring main body and the insulating film and made of an oxide containing Cu and Si and Mn.
    Type: Application
    Filed: March 24, 2009
    Publication date: October 8, 2009
    Applicant: Advanced Interconnect Materials, LLC
    Inventor: Junichi KOIKE
  • Publication number: 20090243112
    Abstract: A copper interconnection structure includes an insulating layer, an interconnection and a barrier layer. The insulating layer includes silicon (element symbol: Si), carbon (element symbol: C), hydrogen (element symbol: H) and oxygen (element symbol: O). The interconnection is located on the insulating layer, and the interconnection includes copper (element symbol: Cu). The barrier layer is located between the insulating layer and the interconnection. The barrier layer includes an additional element, carbon (element symbol: C) and hydrogen (element symbol: H). The barrier layer has atomic concentrations of carbon (element symbol: C) and hydrogen (element symbol: H) maximized in a region of a thickness of the barrier layer where the atomic concentration of the additional element is maximized.
    Type: Application
    Filed: March 24, 2009
    Publication date: October 1, 2009
    Applicants: Advanced Interconnecte Materials, LLC, Tohoku University
    Inventors: Junichi Koike, Akihiro Shibatomi
  • Publication number: 20090236747
    Abstract: A multilevel interconnect structure in a semiconductor device comprises a first insulating layer (2) formed on a semiconductor wafer (1), a Cu interconnect layer (4) formed on the first insulating layer (2), a second insulating layer (6) formed on the Cu interconnect layer (4), and a metal oxide layer (5) formed at an interface between the Cu interconnect layer (4) and the second insulating layer (6). The metal oxide layer (5) is formed by immersion-plating a metal, such as Sn or Zn, on the Cu interconnect layer (4) and then heat-treating the plated layer in an oxidizing atmosphere.
    Type: Application
    Filed: March 19, 2009
    Publication date: September 24, 2009
    Applicants: SEMICONDUCTOR TECHNOLOGY ACADEMIC RESEARCH CENTER, NATIONAL UNIVERSITY CORPORATION TOHOKU UNIVERSITY
    Inventors: Junichi Koike, Yoshito Fujii, Jun Iijima, Noriyoshi Shimizu, Kazuyoshi Maekawa, Koji Arita, Ryotaro Yagi, Masaki Yoshimaru
  • Publication number: 20090212432
    Abstract: A semiconductor device enables a barrier layer to fully acquire a barriering property against the diffusion of Cu from a wiring main body and the diffusion of Si from an insulating film, enhances the adhesiveness of the barrier layer and the insulating film and excels in reliability of operation over a long period of time.
    Type: Application
    Filed: February 27, 2007
    Publication date: August 27, 2009
    Applicant: Advanced Interconnect Materials, LLC
    Inventor: Junichi Koike
  • Publication number: 20090095620
    Abstract: A semiconductor device enables a barrier layer to fully acquire a barriering property against the diffusion of Cu from a wiring main body and the diffusion of Si from an insulating film, enhances the adhesiveness of the barrier layer and the insulating film and excels in reliability of operation over a long period of time. In this invention, a semiconductor device provided on an insulating film with a wiring includes the insulating film containing silicon (Si), a wiring main body formed of copper (Cu) in a groove-like opening disposed in the insulating film, and a barrier layer formed between the wiring main body and the insulating film and made of an oxide containing Cu and Si and Mn.
    Type: Application
    Filed: November 20, 2008
    Publication date: April 16, 2009
    Applicant: Advanced Interconnect Materials, LLC
    Inventor: Junichi Koike
  • Publication number: 20080278649
    Abstract: The present invention includes a liquid crystal display device with an oxide film having high adhesiveness to a semiconductor layer or a pixel electrode to thereby prevent oxidation of a wiring material or the like, and includes a source electrode and a drain electrode having high conductivity, and a manufacturing method therefor. In one embodiment of the present invention, a liquid crystal display device has a TFT electrode of a TFT substrate, wherein a source electrode or a drain electrode includes a layer of mainly copper and an oxide covering an outer part of the layer. Further, in the present invention, the semiconductor layer or the pixel electrode and said source electrode or the drain electrode are in ohmic contact in the TFT electrode.
    Type: Application
    Filed: May 9, 2007
    Publication date: November 13, 2008
    Applicants: Tohoku University, Advanced Interconnect Materials, LLC
    Inventors: Junichi Koike, Hideaki Kawakami
  • Publication number: 20080252843
    Abstract: The present invention includes a liquid crystal display device having an oxide film having high adhesiveness to a substrate to thereby prevent oxidation of a wiring material or the like, and includes, an electrode or a terminal electrode having high conductivity, and a manufacturing method therefor. Consequently, in the present invention, a liquid crystal display device has an electrode terminal of a TFT substrate, wherein the electrode is formed on an insulator and is comprised of a conductive layer mainly consisting of copper and an oxide covering an outer part, further the oxide is a layered structure of transparent electrodes, the layered portion having ohmic contact, and the oxide mainly consists of manganese oxide.
    Type: Application
    Filed: April 10, 2007
    Publication date: October 16, 2008
    Applicants: Tohoku University, Advanced Interconnect Materials, LLC
    Inventors: Junichi Koike, Hideaki Kawakami
  • Publication number: 20080170193
    Abstract: The present invention has been made to form an oxide film having high adhesiveness to a substrate to thereby prevent oxidation of a wiring material or the like, and also provide a liquid crystal display device provided with wiring, an electrode or a terminal electrode having high conductivity, and a manufacturing method therefor. Consequently, the present invention, a liquid crystal display device comprising gate wiring or a gate electrode formed on a substrate on a TFT side of the TFT liquid crystal display device, wherein the wiring or the electrode has a structure of being held between two different insulation layers or insulators, and the structure is comprised of a first layer mainly consisting of copper and a second layer consisting of an oxide covering an outer circumferential part of the first layer, further, the second layer has compositional formula of CuXMnYSiZO (0<X<Y, 0<Z<Y).
    Type: Application
    Filed: January 12, 2007
    Publication date: July 17, 2008
    Applicants: Tohoku University, Advanced Interconnect Materials, LLC
    Inventors: Junichi Koike, Hideaki Kawakami
  • Publication number: 20080057704
    Abstract: A method of manufacturing a semiconductor device, including forming an opening in an interlevel insulating film disposed on a semiconductor substrate, forming an auxiliary film containing a predetermined metal element, to cover an inner surface of the opening, forming a main film to fill the opening after forming the auxiliary film, the main film containing, as a main component, Cu used as a material of an interconnection main layer, and performing a heat treatment before or after forming the main film, thereby diffusing the predetermined metal element of the auxiliary film onto a surface of the interlevel insulating film facing the auxiliary film, so as to form a barrier film on the interlevel insulating film within the opening, the barrier film containing, as a main component, a compound of the predetermined metal element with a component element of the interlevel insulating film.
    Type: Application
    Filed: October 23, 2007
    Publication date: March 6, 2008
    Applicant: SEMICONDUCTOR TECHNOLOGY ACADEMIC RESEARCH CENTER
    Inventors: Junichi Koike, Makoto Wada, Shingo Takahashi, Noriyoshi Shimizu, Hideki Shibata, Satoshi Nishikawa, Takamasa Usui, Hayato Nasu, Masaki Yoshimaru
  • Patent number: 7315232
    Abstract: In an image processing apparatus is arranged for authenticating through collating an input of identification code with an identification code stored in advance, reading the biometrics information from an entry process made when the authentication has been admitted and storing the biometrics information in the first storage area of a storage unit, collating biometrics information read from the succeeding entry process with the biometrics information stored in the first storage area, conducting a process based on the entry process with the authenticated identification code when the collation result is conformity, and erasing the biometrics information stored in the first storage area when the collation result is disconformity, when an entry process is made with biometrics information which is different from the biometrics information stored in the first storage area, the biometrics information stored in the first storage area before erased is evacuated to the second storage area.
    Type: Grant
    Filed: October 20, 2005
    Date of Patent: January 1, 2008
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Junichi Koike
  • Patent number: 7304384
    Abstract: A semiconductor device includes an interlevel insulating film disposed on a semiconductor substrate and having an opening formed therein. An interconnection main layer, which contains Cu as a main component, is embedded in the opening. A barrier film is interposed between the interlevel insulating film and the interconnection main layer within the opening. The barrier film contains, as a main component, a compound of a predetermined metal element with a component element of the interlevel insulating film.
    Type: Grant
    Filed: February 24, 2005
    Date of Patent: December 4, 2007
    Assignee: Semiconductor Technology Academic Research Center
    Inventors: Junichi Koike, Makoto Wada, Shingo Takahashi, Noriyoshi Shimizu, Hideki Shibata, Satoshi Nishikawa, Takamasa Usui, Hayato Nasu, Masaki Yoshimaru
  • Publication number: 20070002239
    Abstract: To provide a highly conductive Cu alloy which is advantageous in that an alloying element added to Cu is first reacted with oxygen contained in a gas atmosphere or solid in contact with the Cu member to form an oxide film which can prevent oxidation of Cu. The copper alloy comprises copper (Cu) containing an inevitable impurity, and an element added to the copper, wherein the added element is capable of being dissolved in the copper in an amount of 0.1 to 20 at. %, wherein the added element has an oxide formation free energy smaller than that of Cu and has a diffusion coefficient in Cu larger than the self-diffusion coefficient of Cu.
    Type: Application
    Filed: August 30, 2005
    Publication date: January 4, 2007
    Inventor: Junichi Koike
  • Publication number: 20060087424
    Abstract: In an image processing apparatus is arranged for authenticating through collating an input of identification code with an identification code stored in advance, reading the biometrics information from an entry process made when the authentication has been admitted and storing the biometrics information in the first storage area of a storage unit, collating biometrics information read from the succeeding entry process with the biometrics information stored in the first storage area, conducting a process based on the entry process with the authenticated identification code when the collation result is conformity, and erasing the biometrics information stored in the first storage area when the collation result is disconformity, when an entry process is made with biometrics information which is different from the biometrics information stored in the first storage area, the biometrics information stored in the first storage area before erased is evacuated to the second storage area.
    Type: Application
    Filed: October 20, 2005
    Publication date: April 27, 2006
    Applicant: Sharp Kabushiki Kaisha
    Inventor: Junichi Koike
  • Publication number: 20050218519
    Abstract: A semiconductor device includes an interlevel insulating film disposed on a semiconductor substrate and having an opening formed therein. An interconnection main layer, which contains Cu as a main component, is embedded in the opening. A barrier film is interposed between the interlevel insulating film and the interconnection main layer within the opening. The barrier film contains, as a main component, a compound of a predetermined metal element with a component element of the interlevel insulating film.
    Type: Application
    Filed: February 24, 2005
    Publication date: October 6, 2005
    Inventors: Junichi Koike, Makoto Wada, Shingo Takahashi, Noriyoshi Shimizu, Hideki Shibata, Satoshi Nishikawa, Takamasa Usui, Hayato Nasu, Masaki Yoshimaru
  • Publication number: 20040019260
    Abstract: There is disclosed a home care system in which a center terminal and a patient terminal are detachably connected to each other through communication lines, such as a public telephone line, an ISDN (integrated services digital network), a CATV (cable television), a radio and the like, and further to center terminals and patient terminals which constitute such a home care system. The patient terminal has an urgency transmitter device for transmitting a predetermined urgency code to the center terminal, and the center terminal comprises an urgency receiver device for receiving, while connected to a first patient terminal, the urgency code transmitted from a second patient terminal, and an urgency alarm device for informing of the fact that the urgency code has been received.
    Type: Application
    Filed: July 21, 2003
    Publication date: January 29, 2004
    Inventors: Takaki Shimura, Satoshi Mori, Keiichi Murakami, Nagaaki Koshino, Minoru Iwata, Takehito Takano, Keiko Nakamura, Junichi Koike, Keiichi Takeda
  • Patent number: 6620099
    Abstract: There is disclosed a home care system in which a center terminal and a patient terminal are detachably connected to each other through communication lines, such as a public telephone line, an ISDN (integrated services digital network), a CATV (cable television), a radio and the like, and further to center terminals and patient terminals which constitute such a home care system. The patient terminal has an urgency transmitter device for transmitting a predetermined urgency code to the center terminal, and the center terminal comprises an urgency receiver device for receiving, while connected to a first patient terminal, the urgency code transmitted from a second patient terminal, and an urgency alarm device for informing of the fact that the urgency code has been received.
    Type: Grant
    Filed: November 17, 2000
    Date of Patent: September 16, 2003
    Assignee: Fujitsu Limited
    Inventors: Takaki Shimura, Satoshi Mori, Keiichi Murakami, Nagaaki Koshino, Minoru Iwata, Takehito Takano, Keiko Nakamura, Junichi Koike, Keiichi Takeda
  • Publication number: 20030042618
    Abstract: In connection with a semiconductor device which adopts the face down mounting method, it is intended to provide a technique which can check the state of continuity between electrode pads formed on a semiconductor chip and electrode pads formed on a wiring substrate.
    Type: Application
    Filed: July 16, 2002
    Publication date: March 6, 2003
    Applicant: Hitachi, Ltd.
    Inventors: Fujiaki Nose, Tomo Shimizu, Hiroshi Kikuchi, Junichi Koike, Masataka Murata