Patents by Inventor John Matthew Chong

John Matthew Chong 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).

  • Electrostatic actuator for microelectromechanical systems and methods of fabrication
    Patent number: 7261826
    Abstract: A method and apparatus are described that may be used to provide decoupled rotation of structures about different pivot points. The apparatus may include one or more fixed blades mounted to a frame or substrate, one or more movable blades mounted to each structure to be moved, and flexures on which the structures are suspended. Separate movable blades may be provided for each degree of freedom. When voltage is applied between the fixed and movable blades, the electrostatic attraction generates a force attracting movable blades toward blades that are fixed relative to the moveable blades, causing a structure to rotate about the flexures. The angle of rotation that results may be related to the size, number and spacing of the blades, the stiffness of the flexures and the magnitude of the voltage difference applied to the blades. The blades are fabricated using deep silicon etching.
    Type: Grant
    Filed: January 27, 2004
    Date of Patent: August 28, 2007
    Assignee: Calient Networks, Inc.
    Inventors: Scott Adams, Tim Davis, Scott Miller, Kevin Shaw, John Matthew Chong, Seung Bok (Chris) Lee
  • Electrostatic actuator for microelectromechanical systems and methods of fabrication
    Patent number: 7098571
    Abstract: A method and apparatus are described that may be used to provide decoupled rotation of structures about different pivot points. The apparatus may include one or more fixed blades mounted to a frame or substrate, one or more movable blades mounted to each structure to be moved, and flexures on which the structures are suspended. Separate movable blades may be provided for each degree of freedom. When voltage is applied between the fixed and movable blades, the electrostatic attraction generates a force attracting movable blades toward blades that are fixed relative to the moveable blades, causing a structure to rotate about the flexures. The angle of rotation that results may be related to the size, number and spacing of the blades, the stiffness of the flexures and the magnitude of the voltage difference applied to the blades. The blades are fabricated using deep silicon etching.
    Type: Grant
    Filed: January 27, 2004
    Date of Patent: August 29, 2006
    Assignee: Calient Networks, Inc.
    Inventors: Scott Adams, Tim Davis, Scott Miller, Kevin Shaw, John Matthew Chong, Seung (Chris) Bok Lee
  • Electrostatic actuator for microelectromechanical systems and methods of fabrication
    Publication number: 20040246306
    Abstract: A method and apparatus are described that may be used to provide decoupled rotation of structures about different pivot points. The apparatus may include one or more fixed blades mounted to a frame or substrate, one or more movable blades mounted to each structure to be moved, and flexures on which the structures are suspended. Separate movable blades may be provided for each degree of freedom. When voltage is applied between the fixed and movable blades, the electrostatic attraction generates a force attracting movable blades toward blades that are fixed relative to the moveable blades, causing a structure to rotate about the flexures. The angle of rotation that results may be related to the size, number and spacing of the blades, the stiffness of the flexures and the magnitude of the voltage difference applied to the blades. The blades are fabricated using deep silicon etching.
    Type: Application
    Filed: January 27, 2004
    Publication date: December 9, 2004
    Inventors: Scott Adams, Tim Davis, Scott Miller, Kevin Shaw, John Matthew Chong, Seung Bok (Chris) Lee
  • Electrostatic actuator for microelectromechanical systems and methods of fabrication
    Publication number: 20040245890
    Abstract: A method and apparatus are described that may be used to provide decoupled rotation of structures about different pivot points. The apparatus may include one or more fixed blades mounted to a frame or substrate, one or more movable blades mounted to each structure to be moved, and flexures on which the structures are suspended. Separate movable blades may be provided for each degree of freedom. When voltage is applied between the fixed and movable blades, the electrostatic attraction generates a force attracting movable blades toward blades that are fixed relative to the moveable blades, causing a structure to rotate about the flexures. The angle of rotation that results may be related to the size, number and spacing of the blades, the stiffness of the flexures and the magnitude of the voltage difference applied to the blades. The blades are fabricated using deep silicon etching.
    Type: Application
    Filed: January 27, 2004
    Publication date: December 9, 2004
    Inventors: Scott Adams, Tim Davis, Scott Miller, Kevin Shaw, John Matthew Chong, Seung Bok Lee
  • Electrostatic actuator for micromechanical systems
    Patent number: 6753638
    Abstract: A method and apparatus are described that may be used to provide decoupled rotation of structures about different pivot points. The apparatus may include one or more fixed blades mounted to a frame or substrate, one or more movable blades mounted to each structure to be moved, and flexures on which the structures are suspended. Separate movable blades may be provided for each degree of freedom. When voltage is applied between the fixed and movable blades, the electrostatic attraction generates a force attracting movable blades toward blades that are fixed relative to the moveable blades, causing a structure to rotate about the flexures. The angle of rotation that results may be related to the size, number and spacing of the blades, the stiffness of the flexures and the magnitude of the voltage difference applied to the blades. The blades are fabricated using deep silicon etching.
    Type: Grant
    Filed: February 2, 2001
    Date of Patent: June 22, 2004
    Assignee: Calient Networks, Inc.
    Inventors: Scott Adams, Tim Davis, Scott Miller, Kevin Shaw, John Matthew Chong, Seung Bok (Chris) Lee
  • Electrostatic actuator for microelectromechanical systems and methods of fabrication
    Publication number: 20020011759
    Abstract: A method and apparatus are described that may be used to provide decoupled rotation of structures about different pivot points. The apparatus may include one or more fixed blades mounted to a frame or substrate, one or more movable blades mounted to each structure to be moved, and flexures on which the structures are suspended. Separate movable blades may be provided for each degree of freedom. When voltage is applied between the fixed and movable blades, the electrostatic attraction generates a force attracting movable blades toward blades that are fixed relative to the moveable blades, causing a structure to rotate about the flexures. The angle of rotation that results may be related to the size, number and spacing of the blades, the stiffness of the flexures and the magnitude of the voltage difference applied to the blades. The blades are fabricated using deep silicon etching.
    Type: Application
    Filed: February 2, 2001
    Publication date: January 31, 2002
    Inventors: Scott Adams, Tim Davis, Scott Miller, Kevin Shaw, John Matthew Chong, Seung Bok (Chris) Lee