Patents by Inventor Kazuo Nojiri

Kazuo Nojiri 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: 10056264
    Abstract: Provided herein are ALE methods of removing III-V materials such as gallium nitride (GaN) and related apparatus. In some embodiments, the methods involve exposing the III-V material to a chlorine-containing plasma without biasing the substrate to form a modified III-V surface layer; and applying a bias voltage to the substrate while exposing the modified III-V surface layer to a plasma to thereby remove the modified III-V surface layer. The disclosed methods are suitable for a wide range of applications, including etching processes for trenches and holes, fabrication of HEMTs, fabrication of LEDs, and improved selectivity in etching processes.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: August 21, 2018
    Assignee: Lam Research Corporation
    Inventors: Wenbing Yang, Tomihito Ohba, Samantha Tan, Keren Jacobs Kanarik, Jeffrey Marks, Kazuo Nojiri
  • Publication number: 20160358782
    Abstract: Provided herein are ALE methods of removing III-V materials such as gallium nitride (GaN) and related apparatus. In some embodiments, the methods involve exposing the III-V material to a chlorine-containing plasma without biasing the substrate to form a modified III-V surface layer; and applying a bias voltage to the substrate while exposing the modified III-V surface layer to a plasma to thereby remove the modified III-V surface layer. The disclosed methods are suitable for a wide range of applications, including etching processes for trenches and holes, fabrication of HEMTs, fabrication of LEDs, and improved selectivity in etching processes.
    Type: Application
    Filed: June 3, 2016
    Publication date: December 8, 2016
    Inventors: Wenbing Yang, Tomihito Ohba, Samantha Tan, Keren Jacobs Kanarik, Jeffrey Marks, Kazuo Nojiri
  • Patent number: 7737023
    Abstract: In a process for the manufacture of a semiconductor integrated circuit device having an inlaid interconnect structure by embedding a conductor film in a recess, such as a trench or hole, formed in an organic insulating film which constitutes an interlevel dielectric film and includes an organosiloxane as a main component, the recess, such as a trench or hole, is formed by subjecting the organic insulating film to plasma dry etching in a CF-based gas/N2/Ar gas in order to suppress the formation of an abnormal shape on the bottom of the recess, upon formation of a photoresist film over the organic insulating film, followed by formation of the recess therein with the photoresist film as an etching mask.
    Type: Grant
    Filed: August 19, 2008
    Date of Patent: June 15, 2010
    Assignee: Renesas Technology Corporation
    Inventors: Shouochi Uno, Atsushi Maekawa, Takashi Yunogami, Kazutami Tago, Kazuo Nojiri, Shuntaro Machida, Takafumi Tokunaga
  • Publication number: 20090011592
    Abstract: In a process for the manufacture of a semiconductor integrated circuit device having an inlaid interconnect structure by embedding a conductor film in a recess, such as a trench or hole, formed in an organic insulating film which constitutes an interlevel dielectric film and includes an organosiloxane as a main component, the recess, such as a trench or hole, is formed by subjecting the organic insulating film to plasma dry etching in a CF-based gas/N2/Ar gas in order to suppress the formation of an abnormal shape on the bottom of the recess, upon formation of a photoresist film over the organic insulating film, followed by formation of the recess therein with the photoresist film as an etching mask.
    Type: Application
    Filed: August 19, 2008
    Publication date: January 8, 2009
    Inventors: Shouichi Uno, Atsushi Maekawa, Takashi Yunogami, Kazutami Tago, Kazuo Nojiri, Shuntaro Machida, Takafumi Tokunaga
  • Patent number: 7419902
    Abstract: In a process for the manufacture of a semiconductor integrated circuit device having an inlaid interconnect structure by embedding a conductor film in a recess, such as a trench or hole, formed in an organic insulating film which constitutes an interlevel dielectric film and includes an organosiloxane as a main component, the recess, such as a trench or hole, is formed by subjecting the organic insulating film to plasma dry etching in a CF-based gas/N2/Ar gas in order to suppress the formation of an abnormal shape on the bottom of the recess, upon formation of a photoresist film over the organic insulating film, followed by formation of the recess therein with the photoresist film as an etching mask.
    Type: Grant
    Filed: April 13, 2005
    Date of Patent: September 2, 2008
    Assignees: Renesas Technology Corp., Hitachi Ulsi Systems Co., Ltd
    Inventors: Shouochi Uno, Atsushi Maekawa, Takashi Yunogami, Kazutami Tago, Kazuo Nojiri, Shuntaro Machida, Takafumi Tokunaga
  • Patent number: 7288156
    Abstract: The invention provides a water supplying apparatus and method thereof which has a high capacity of peeling and removing a disused material such as a resist film and the like, and can efficiently use water vapor. A water supplying apparatus for executing a washing process, a cleaning process and a working process of a subject, is provided with a water vapor body supplying means for supplying a water vapor body, and a water mist body supplying means for supplying a water mist body containing liquid water fine particles, and the structure is made such that said water vapor body and said water mist body are supplied to the subject by independently controlling said two means.
    Type: Grant
    Filed: January 10, 2006
    Date of Patent: October 30, 2007
    Assignee: Lam Research Corporation
    Inventors: Yoichi Isago, Kazuo Nojiri, Naoaki Kobayashi, Teruo Saito, Shu Nakajima
  • Publication number: 20070037292
    Abstract: Disclosed is apparatus for treating samples, and a method of using the apparatus. The apparatus includes processing apparatus (a) for treating the samples (e.g. plasma etching apparatus), (b) for removing residual corrosive compounds formed by the sample treatment, (c) for wet-processing of the samples and (d) for dry-processing the samples. A plurality of wet-processing treatments of a sample can be performed. The wet-processing apparatus can include a plurality of wet-processing stations. The samples can either be passed in series through the plurality of wet-processing stations, or can be passed in parallel through the wet-processing stations.
    Type: Application
    Filed: October 24, 2006
    Publication date: February 15, 2007
    Inventors: Masayuki Kojima, Yoshimi Torii, Michimasa Hunabashi, Kazuyuki Suko, Takashi Yamada, Keizo Kuroiwa, Kazuo Nojiri, Yoshinao Kawasaki, Yoshiaki Sato, Ryooji Fukuyama, Hironobu Kawahara
  • Patent number: 7132293
    Abstract: Disclosed is apparatus for treating samples, and a method of using the apparatus. The apparatus includes processing apparatus (a) for treating the samples (e.g., plasma etching apparatus), (b) for removing residual corrosive compounds formed by the sample treatment, (c) for wet-processing of the samples and (d) for dry-processing the samples. A plurality of wet-processing treatments of a sample can be performed. The wet-processing apparatus can include a plurality of wet-processing stations. The samples can either be passed in series through the plurality of wet-processing stations, or can be passed in parallel through the wet-processing stations.
    Type: Grant
    Filed: May 27, 2004
    Date of Patent: November 7, 2006
    Assignee: Hitachi, Ltd.
    Inventors: Yoshimi Torii, Kazuo Nojiri, Yoshinao Kawasaki, Yoshiaki Sato, Ryooji Fukuyama, Hironobu Kawahara
  • Publication number: 20060112974
    Abstract: The invention provides a water supplying apparatus and method thereof which has a high capacity of peeling and removing a disused material such as a resist film and the like, and can efficiently use water vapor. A water supplying apparatus for executing a washing process, a cleaning process and a working process of a subject, is provided with a water vapor body supplying means for supplying a water vapor body, and a water mist body supplying means for supplying a water mist body containing liquid water fine particles, and the structure is made such that said water vapor body and said water mist body are supplied to the subject by independently controlling said two means.
    Type: Application
    Filed: January 10, 2006
    Publication date: June 1, 2006
    Inventors: Yoichi Isago, Kazuo Nojiri, Naoaki Kobayashi, Teruo Saito, Shu Nakajima
  • Patent number: 7004181
    Abstract: The invention provides a water supplying apparatus and method thereof which has a high capacity of peeling and removing a disused material such as a resist film and the like, and can efficiently use water vapor. A water supplying apparatus for executing a washing process, a cleaning process and a working process of a subject, is provided with a water vapor body supplying means for supplying a water vapor body, and a water mist body supplying means for supplying a water mist body containing liquid water fine particles, and the structure is made such that said water vapor body and said water mist body are supplied to the subject by independently controlling said two means.
    Type: Grant
    Filed: August 27, 2002
    Date of Patent: February 28, 2006
    Assignee: Lam Research Corporation
    Inventors: Yoichi Isago, Kazuo Nojiri, Naoaki Kobayashi, Teruo Saito, Shu Nakajima
  • Patent number: 6989228
    Abstract: Disclosed is apparatus for treating samples, and a method of using the apparatus. The apparatus includes processing apparatus (a) for treating the samples (e.g., plasma etching apparatus), (b) for removing residual corrosive compounds formed by the sample treatment, (c) for wet-processing of the samples and (d) for dry-processing the samples. A plurality of wet-processing treatments of a sample can be performed. The wet-processing apparatus can include a plurality of wet-processing stations. The samples can either be passed in series through the plurality of wet-processing stations, or can be passed in parallel through the wet-processing stations.
    Type: Grant
    Filed: July 31, 2001
    Date of Patent: January 24, 2006
    Assignee: Hitachi, LTD
    Inventors: Masayuki Kojima, Yoshimi Torii, Michimasa Hunabashi, Kazuyuki Suko, Takashi Yamada, Keizo Kuroiwa, Kazuo Nojiri, Yoshinao Kawasaki, Yoshiaki Sato, Ryooji Fukuyama, Hironobu Kawahara
  • Publication number: 20050186801
    Abstract: In a process for the manufacture of a semiconductor integrated circuit device having an inlaid interconnect structure by embedding a conductor film in a recess, such as a trench or hole, formed in an organic insulating film which constitutes an interlevel dielectric film and includes an organosiloxane as a main component, the recess, such as a trench or hole, is formed by subjecting the organic insulating film to plasma dry etching in a CF-based gas/N2/Ar gas in order to suppress the formation of an abnormal shape on the bottom of the recess, upon formation of a photoresist film over the organic insulating film, followed by formation of the recess therein with the photoresist film as an etching mask.
    Type: Application
    Filed: April 13, 2005
    Publication date: August 25, 2005
    Inventors: Shouochi Uno, Atsushi Maekawa, Takashi Yunogami, Kazutami Tago, Kazuo Nojiri, Shuntaro Machida, Takafumi Tokunaga
  • Publication number: 20040219687
    Abstract: Disclosed is apparatus for treating samples, and a method of using the apparatus. The apparatus includes processing apparatus (a) for treating the samples (e.g., plasma etching apparatus), (b) for removing residual corrosive compounds formed by the sample treatment, (c) for wet-processing of the samples and (d) for dry-processing the samples. A plurality of wet-processing treatments of a sample can be performed. The wet-processing apparatus can include a plurality of wet-processing stations. The samples can either be passed in series through the plurality of wet-processing stations, or can be passed in parallel through the wet-processing stations.
    Type: Application
    Filed: May 27, 2004
    Publication date: November 4, 2004
    Inventors: Yoshimi Torii, Kazuo Nojiri, Yoshinao Kawasaki, Yoshiaki Sato, Ryooji Fukuyama, Hironobu Kawahara
  • Patent number: 6774020
    Abstract: Insulating films 34 through 38 (of which insulating films 34, 36, 38 are silicon nitride films and insulating films 35, 38 are silicon oxide films) are sequentially formed on the wires 33 of the fourth wiring layer and groove pattern 40 is transferred into the insulating film 38 by means of photolithography. An anti-reflection film 41 is formed to fill the grooves 40 of the insulating film 38 and then a resist film 42 carrying a hole pattern 43 is formed. The films are subjected to an etching operation in the presence of the resist film 42 to transfer the hole pattern into the insulating films 38, 37, 36 and part of the insulating film 35. Subsequently, the resist film 42 and the anti-reflection film 41 are removed and the groove pattern 40 and the hole pattern 43 are transferred respectively into the insulating film 37 and the insulating film 35 by using the insulating film 38 as mask.
    Type: Grant
    Filed: January 31, 2003
    Date of Patent: August 10, 2004
    Assignee: Renesas Technology Corp.
    Inventors: Shinichi Fukada, Kazuo Nojiri, Takashi Yunogami, Shoji Hotta, Hideo Aoki, Takayuki Oshima, Nobuyoshi Kobayashi
  • Publication number: 20040092044
    Abstract: In a semiconductor device manufacturing method, an ion current density distribution is measured in a plasma processing apparatus. It is then ascertained whether or not the measured distribution is in compliance with an ion current density distribution that becomes a criterion.
    Type: Application
    Filed: October 31, 2003
    Publication date: May 13, 2004
    Inventors: Nobuyuki Mise, Tatehito Usui, Masato Ikegawa, Kazuo Nojiri, Kazuyuki Tsunokuni, Tetsuo Ono
  • Patent number: 6656752
    Abstract: A wafer is exposed to a plasma. Here, the wafer includes a semiconductor or a conductor 1 provided on an insulator 6, an insulator 2 formed thereon and having a region the thickness of which has been made locally thin, and a 2nd conductor 4 provided on the insulator 2, one of the semiconductor or the conductor 1 and the 2nd conductor 4 having a 1st region from the surface of which a substantially total solid angle is formed, the other having a 2nd region a solid angle formed from the surface of which is made smaller than the 1st region. Then, a voltage is applied to the semiconductor or the conductor 1 and the 2nd conductor 4 so as to measure a time elapsing until the insulator 2 undergoes a dielectric breakdown. Moreover, the ion current density is determined from an electric charge required therefor and an area exposed onto the surface of the 2nd conductor 4.
    Type: Grant
    Filed: October 11, 2001
    Date of Patent: December 2, 2003
    Assignee: Hitachi, Ltd.
    Inventors: Nobuyuki Mise, Tatehito Usui, Masato Ikegawa, Kazuo Nojiri, Kazuyuki Tsunokuni, Tetsuo Ono
  • Patent number: 6656846
    Abstract: Disclosed is apparatus for treating samples, and a method of using the apparatus. The apparatus includes processing apparatus (a) for treating the samples (e.g., plasma etching apparatus), (b) for removing residual corrosive compounds formed by the sample treatment, (c) for wet-processing of the samples and (d) for dry-processing the samples. A plurality of wet-processing treatments of a sample can be performed. The wet-processing apparatus can include a plurality of wet-processing stations. The samples can either be passed in series through the plurality of wet-processing stations, or can be passed in parallel through the wet-processing stations.
    Type: Grant
    Filed: May 3, 2001
    Date of Patent: December 2, 2003
    Assignee: Hitachi, Ltd.
    Inventors: Masayuki Kojima, Yoshimi Torii, Michimasa Hunabashi, Kazuyuki Suko, Takashi Yamada, Keizo Kuroiwa, Kazuo Nojiri, Yoshiaki Sato, Ryooji Fukuyama, Hironobu Kawahara
  • Publication number: 20030217762
    Abstract: A water supply apparatus and a method thereof have a high capability of peeling-off and removing unnecessary objects such as a resist film, and parameters for setting efficient water supply conditions. The water supply apparatus and the method are designed to supply water for cleaning, peeling-off, or treating a target article. On a surface of the target article to be processed, a nozzle device is provided for spraying a mixture of water vapor and water mist. At least the following parameters are respectively set as water supply conditions to proper values so as to supply water to the target article, and these parameters include (1) a weight ratio of water vapor to water mist on the surface to be processed, (2) a temperature of the surface to be processed, and (3) a distance between a (water) blowing port of the nozzle device and the surface to be processed.
    Type: Application
    Filed: February 18, 2003
    Publication date: November 27, 2003
    Applicant: LAM RESEARCH CORPORATION
    Inventors: Naoaki Kobayashi, Ryuta Yamaguchi, Kaori Tajima, Kohsuke Ori, Eri Haikata, Shu Nakajima, Yoichi Isago, Kazuo Nojiri
  • Patent number: 6607988
    Abstract: With a view to providing a technique for highly-selective etching of Ru (ruthenium) using a photoresist as an etching mask, an Ru-film, which is an lower electrode material deposited on the side walls and bottom surface of a hole, is covered with a photoresist film, followed by isotropic dry etching in a gas atmosphere containing an ozone gas, whereby a portion of the Ru film outside of the hole is removed.
    Type: Grant
    Filed: December 28, 2000
    Date of Patent: August 19, 2003
    Assignee: Hitachi, Ltd.
    Inventors: Takashi Yunogami, Yoshitaka Nakamura, Kazuo Nojiri, Sukeyoshi Tsunekawa, Toshiyuki Arai, Miwako Nakahara, Shigeru Ohno, Tomonori Saeki, Masaru Izawa
  • Publication number: 20030139031
    Abstract: Insulating films 34 through 38 (of which insulating films 34, 36, 38 are silicon nitride films and insulating films 35, 38 are silicon oxide films) are sequentially formed on the wires 33 of the fourth wiring layer and groove pattern 40 is transferred into the insulating film 38 by means of photolithography. An anti-reflection film 41 is formed to fill the grooves 40 of the insulating film 38 and then a resist film 42 carrying a hole pattern 43 is formed. The films are subjected to an etching operation in the presence of the resist film 42 to transfer the hole pattern into the insulating films 38, 37, 36 and part of the insulating film 35. Subsequently, the resist film 42 and the anti-reflection film 41 are removed and the groove pattern 40 and the hole pattern 43 are transferred respectively into the insulating film 37 and the insulating film 35 by using the insulating film 38 as mask.
    Type: Application
    Filed: January 31, 2003
    Publication date: July 24, 2003
    Inventors: Shinichi Fukada, Kazuo Nojiri, Takashi Yunogami, Shoji Hotta, Hideo Aoki, Takayuki Oshima, Nobuyoshi Kobayashi