Patents by Inventor Michio Aruga

Michio Aruga 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: 11687439
    Abstract: Automatic definition of windows for trace analysis. For each process step, the trace data are aligned to both the start of the process step and the end of the process step, and statistics including rate of change are calculated from both the start of the process step and the end of the process step. Windows are generated based on analysis of the calculated statistics.
    Type: Grant
    Filed: July 22, 2021
    Date of Patent: June 27, 2023
    Assignee: PDF Solutions, Inc.
    Inventors: Richard Burch, Kazuki Kunitoshi, Michio Aruga, Nobichika Akiya
  • Publication number: 20220027248
    Abstract: Automatic definition of windows for trace analysis. For each process step, the trace data are aligned to both the start of the process step and the end of the process step, and statistics including rate of change are calculated from both the start of the process step and the end of the process step. Windows are generated based on analysis of the calculated statistics.
    Type: Application
    Filed: July 22, 2021
    Publication date: January 27, 2022
    Applicant: PDF Solutions, Inc.
    Inventors: Richard Burch, Kazuki Kunitoshi, Michio Aruga, Nobichika Akiya
  • Publication number: 20080035754
    Abstract: Disclosed is a system for treating an object, comprising a section for positioning an object on which the object to be treated is positioned under a predetermined atmosphere; a nozzle section for spraying the object with supplied vapor and water in mixture; means for moving the section for positioning an object and/or the nozzle section for allowing the nozzle section to spray the object on the section for positioning an object; means for controlling positional relationship between the section for positioning an object and the nozzle section to control relative rate (scan rate); and means for controlling, during the spraying, each of parameters of pressure of the vapor supplied to the nozzle section, flowrate of the water supplied to the nozzle section, area of an outlet of the nozzle section, spray time, scan rate and gap between the outlet of the nozzle section and the object.
    Type: Application
    Filed: July 21, 2005
    Publication date: February 14, 2008
    Applicant: AQUA SCIENCE CORPORATION
    Inventors: Michio Aruga, Koichi Saito, Kaori Tajima
  • Patent number: 7036453
    Abstract: A method is provided for depositing a thin film on a substrate in a process chamber with reduced incidence of plasma charge damage. A process gas containing a precursor gases suitable for forming a plasma is flowed into a process chamber, and a plasma is generated from the process gas to deposit the thin film on the substrate. The precursor gases are flowed into the process chamber such that the thin film is deposited at the center of the substrate more rapidly than at an edge of the substrate.
    Type: Grant
    Filed: September 8, 2003
    Date of Patent: May 2, 2006
    Assignee: Applied Materials, Inc.
    Inventors: Tetsuya Ishikawa, Alexandros T. Demos, Seon-Mee Cho, Feng Gao, Kaveh F. Niazi, Michio Aruga
  • Publication number: 20040048492
    Abstract: A method is provided for depositing a thin film on a substrate in a process chamber with reduced incidence of plasma charge damage. A process gas containing a precursor gases suitable for forming a plasma is flowed into a process chamber, and a plasma is generated from the process gas to deposit the thin film on the substrate. The precursor gases are flowed into the process chamber such that the thin film is deposited at the center of the substrate more rapidly than at an edge of the substrate.
    Type: Application
    Filed: September 8, 2003
    Publication date: March 11, 2004
    Applicant: Applied Materials, Inc.
    Inventors: Tetsuya Ishikawa, Alexandros T. Demos, Seon-Mee Cho, Feng Gao, Kaveh F. Niazi, Michio Aruga
  • Patent number: 6660662
    Abstract: A method is provided for depositing a thin film on a substrate in a process chamber with reduced incidence of plasma charge damage. A process gas containing a precursor gases suitable for forming a plasma is flowed into a process chamber, and a plasma is generated from the process gas to deposit the thin film on the substrate. The precursor gases are flowed into the process chamber such that the thin film is deposited at the center of the substrate more rapidly than at an edge of the substrate.
    Type: Grant
    Filed: January 26, 2001
    Date of Patent: December 9, 2003
    Assignee: Applied Materials, Inc.
    Inventors: Tetsuya Ishikawa, Alexandros T. Demos, Seon-Mee Cho, Feng Gao, Kaveh F. Niazi, Michio Aruga
  • Patent number: 6632726
    Abstract: To perform a film formation process, source RF power is applied to a coil to generate a plasma in a processing chamber. Subsequently, O2 gas and SiH4 gas are introduced into the processing chamber. Bias RF power is then applied to a support member to cause permeation of a wafer W by the plasma. At the end of the film formation, the application of the bias RF power to the support member is stopped while the O2 gas and the SiH4 gas are kept introduced into the processing chamber. After that, the introduction of the SiH4 gas is stopped, and the introduction of the O2 gas is also stopped. Then, the application of the source RF power to the coil is stopped. This can reduce plasma damage to the substrate to be processed.
    Type: Grant
    Filed: August 29, 2001
    Date of Patent: October 14, 2003
    Assignee: Applied Materials, Inc.
    Inventors: Michio Aruga, Atsushi Tabata
  • Publication number: 20030024901
    Abstract: A method is provided for depositing a thin film on a substrate in a process chamber with reduced incidence of plasma charge damage. A process gas containing a precursor gases suitable for forming a plasma is flowed into a process chamber, and a plasma is generated from the process gas to deposit the thin film on the substrate. The precursor gases are flowed into the process chamber such that the thin film is deposited at the center of the substrate more rapidly than at an edge of the substrate.
    Type: Application
    Filed: January 26, 2001
    Publication date: February 6, 2003
    Applicant: Applied Materials, Inc.
    Inventors: Tetsuya Ishikawa, Alexandros T. Demos, Seon-Mee Cho, Feng Gao, Kaveh F. Niazi, Michio Aruga
  • Publication number: 20020028567
    Abstract: To perform a film formation process, source RF power is applied to a coil to generate a plasma in a processing chamber. Subsequently, O2 gas and SiH4 gas are introduced into the processing chamber. Bias RF power is then applied to a support member to cause permeation of a wafer W by the plasma. At the end of the film formation, the application of the bias RF power to the support member is stopped while the O2 gas and the SiH4 gas are kept introduced into the processing chamber. After that, the introduction of the SiH4 gas is stopped, and the introduction of the O2 gas is also stopped. Then, the application of the source RF power to the coil is stopped. This can reduce plasma damage to the substrate to be processed.
    Type: Application
    Filed: August 29, 2001
    Publication date: March 7, 2002
    Applicant: Applied Materials Inc.
    Inventors: Michio Aruga, Atsushi Tabata
  • Patent number: 6090706
    Abstract: A process is disclosed for preconditioning surfaces of a tungsten silicide deposition chamber, after a previous step of cleaning the chamber, and prior to depositing tungsten silicide on active substrates in the chamber, which first comprises treating the chamber surfaces with a gaseous silicon source, such as silane, and a tungsten-bearing gas, such as WF.sub.6, to form a first deposition of a silane-based tungsten silicide on the chamber surfaces. In a preferred embodiment, the preconditioning process further comprises subsequently treating the already coated chamber surfaces in a second step with a mixture of a tungsten-bearing gas, such as WF.sub.6, and a chlorine-substituted silane such as dichlorosilane (SiH.sub.2 Cl.sub.2), monochlorosilane (SiH.sub.3 Cl), or trichlorosilane (SiHCl.sub.
    Type: Grant
    Filed: August 26, 1998
    Date of Patent: July 18, 2000
    Assignee: Applied Materials, Inc.
    Inventors: Susan Weiher Telford, Michio Aruga, Mei Chang
  • Patent number: 5997950
    Abstract: A tungsten silicide film is deposited on a substrate from a premixed deposition gas mixture comprising: (i) silicon source gas, such as SiCl.sub.2 H.sub.2 and (ii) tungsten source gas, such as WF.sub.6. A seeding gas, such as silane, is used during the initial deposition stages to deposit a substantially uniform interfacial WSi.sub.x layer on the substrate, so that the tungsten to silicon ratio of the WSi.sub.x layer is substantially uniform through the thickness of the WSi.sub.x film. An apparatus for performing the process is also described.
    Type: Grant
    Filed: May 27, 1997
    Date of Patent: December 7, 1999
    Assignee: Applied Materials, Inc.
    Inventors: Susan G. Telford, Meng Chu Tseng, Michio Aruga, Klaus-Dieter Rinnen
  • Patent number: 5877086
    Abstract: The present invention is a process for planarization of substrate layers comprising apertures to form continuous, void-free contacts or vias in sub-half micron applications. A CVD silicon or metal silicide wetting layer is deposited onto the substrate layer comprising apertures to provide a conformal wetting layer for a PVD metal layer. The PVD metal layer is deposited onto the previously formed CVD metal layer at a temperature below that of the melting point temperature of the metal. The CVD layer diffuses into the PVD layer and the resulting conductive layer is substantially void-free. The planarization process is preferably carried out in a multi-chamber system that includes both PVD and CVD processing chambers so that once the substrate is introduced into a vacuum environment, the filling of vias and contacts occurs without the formation of an oxide layer over the CVD wetting layer.
    Type: Grant
    Filed: July 11, 1997
    Date of Patent: March 2, 1999
    Assignee: Applied Materials, Inc.
    Inventor: Michio Aruga
  • Patent number: 5779848
    Abstract: An improved integrated circuit processing apparatus is disclosed wherein a protective coating of aluminum nitride (AlN), on the inner surface of a quartz (SiO.sub.2) window in the wall of the integrated circuit processing apparatus provides an enhanced resistance to the corrosive effects of halogen-containing reagents, particularly fluorine-containing gases, on the protected inner surface of the quartz window. Formation of an AlN coating having a minimum thickness of about 1 micron up to a maximum thickness of about 15 microns with a coating uniformity of .+-.15% of the average coating thickness, provides the desired protection of the inner surface of the quartz window from corrosive attack by fluorine-containing gases, such as NF.sub.3, SF.sub.6, and fluorine-containing hydrocarbons, e.g., C.sub.2 F.sub.6.
    Type: Grant
    Filed: January 10, 1997
    Date of Patent: July 14, 1998
    Assignee: Applied Materials, Inc.
    Inventor: Michio Aruga
  • Patent number: 5688331
    Abstract: In CVD processes susceptors can be made of a thermally conductive ceramic such as aluminum nitride which has superior durability with respect to fluorine plasma. Such aluminum nitride susceptors can include an embedded heater element and/or embedded ground or RF electrodes which as a result of their embedment are protected from the deleterious effects of the processing chamber environment. The conductors leading to these elements are protected from exposure to the process chamber environment by passing through a cylindrical member filled with inert gas supporting the wafer support plate of said susceptor. Alternately, the conductors leading to these elements can be run through passages in a hermetically sealed stem supporting the susceptor wafer support plate. The stem passes through the wall of the processing chamber so that connections to the susceptor wafer support plate can be made outside the processing chamber.
    Type: Grant
    Filed: July 1, 1996
    Date of Patent: November 18, 1997
    Assignee: Applied Materisls, Inc.
    Inventors: Michio Aruga, Atsunobu Ohkura, Akihiko Saito, Kenji Suzuki, Kenichi Taguchi, Dale Robert DuBois, Alan Ferris Morrison
  • Patent number: 5643633
    Abstract: A tungsten silicide film is deposited from WF.sub.6 and SiCl.sub.2 H.sub.2 onto a substrate so that the tungsten to silicon ratio is substantially uniform through the thickness of the WSi.sub.x film, and the WSi.sub.x film is substantially free of fluorine. The film can be deposited by a multi-stage process where the pressure in the chamber is varied, or by a high temperature, high pressure deposition process in a plasma cleaned deposition chamber. Preferably the SiCl.sub.2 H.sub.2 and the WF.sub.6 are mixed upstream of the deposition chamber. A seeding gas can be added to the process gases.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: July 1, 1997
    Assignee: Applied Materials, Inc.
    Inventors: Susan G. Telford, Meng Chu Tseng, Michio Aruga, Moshe Eizenberg
  • Patent number: 5558910
    Abstract: A tungsten silicide film is deposited from WF.sub.6 and SiCl.sub.2 H.sub.2 onto a substrate so that the tungsten to silicon ratio is substantially uniform through the thickness of the WSi.sub.x film, and the WSi.sub.x film is substantially free of fluorine. The film can be deposited by a multi-stage process where the pressure in the chamber is varied, or by a high temperature, high pressure deposition process in a plasma cleaned deposition chamber. Preferably the SiCl.sub.2 H.sub.2 and the WF.sub.6 are mixed upstream of the deposition chamber. A seeding gas can be added to the process gases.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: September 24, 1996
    Assignee: Applied Materials, Inc.
    Inventors: Susan G. Telford, Meng C. Tseng, Michio Aruga, Moshe Eizenberg
  • Patent number: 5510297
    Abstract: Disclosed is a process for the formation of a tungsten silicide layer on an integrated circuit structure of a semiconductor wafer mounted on a susceptor in a vacuum chamber, wherein the tungsten silicide layer is applied at a temperature of at least 500.degree. C. and the susceptor has an aluminum nitride surface. After the chamber has been cleaned with one or more fluorine-containing etchant gases, the improvement comprises depositing a layer of tungsten silicide on the surface of the susceptor prior to an initial deposition of tungsten silicide on a wafer mounted on the susceptor after cleaning with the fluorine-containing etchant gases.
    Type: Grant
    Filed: August 10, 1995
    Date of Patent: April 23, 1996
    Assignee: Applied Materials, Inc.
    Inventors: Susan Telford, Michio Aruga, Mei Chang
  • Patent number: 5500249
    Abstract: A tungsten silicide film is deposited from WF.sub.6 and SiCl.sub.2 H.sub.2 onto a substrate so that the tungsten to silicon ratio is substantially uniform through the thickness of the WSi.sub.x film, and the WSi.sub.x film is substantially free of fluorine. The film can be deposited by a multi-stage process where the pressure in the chamber is varied, or by a high temperature, high pressure deposition process in a plasma cleaned deposition chamber. Preferably the SiCl.sub.2 H.sub.2 and the WF.sub.6 are mixed upstream of the deposition chamber. A seeding gas can be added to the process gases.
    Type: Grant
    Filed: May 18, 1993
    Date of Patent: March 19, 1996
    Assignee: Applied Materials, Inc.
    Inventors: Susan G. Telford, Meng C. Tseng, Michio Aruga
  • Patent number: 5482749
    Abstract: A process is disclosed for pretreating aluminum-bearing surfaces in a vacuum deposition chamber after a previous step of cleaning the chamber, and prior to depositing tungsten silicide on substrates in the chamber, which first comprises treating the aluminum-bearing surfaces with a mixture of silane and a tungsten-bearing gas, such as WF.sub.6, to form a first deposition of a silane-based tungsten silicide on the aluminum-bearing surfaces. In a preferred embodiment, the process further comprises subsequently treating the already coated aluminum-bearing surfaces of the chamber in a second step with a mixture of a tungsten-bearing gas, such as WF.sub.6, and a chlorine-substituted silane such as dichlorosilane (SiH.sub.2 Cl.sub.2), monochlorosilane (SiH.sub.3 Cl), or trichlorosilane (SiHCl.sub.3) to form a chlorine-substituted silane-based tungsten silicide deposition over the previous deposited silane-based tungsten silicide.
    Type: Grant
    Filed: December 23, 1994
    Date of Patent: January 9, 1996
    Assignee: Applied Materials, Inc.
    Inventors: Susan Telford, Michio Aruga, Mei Chang
  • Patent number: 5456757
    Abstract: A novel susceptor used in a chemical vapor deposition device that is made of a ceramic material, specifically, an aluminum nitride material.
    Type: Grant
    Filed: October 29, 1993
    Date of Patent: October 10, 1995
    Assignee: Applied Materials, Inc.
    Inventors: Michio Aruga, Atsunobu Ohkuba, Akihiko Saito, Katsumasa Anan