Patents by Inventor David K. Arch

David K. Arch 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).

  • Methods and systems for simultaneously fabricating multi-frequency MEMS devices
    Patent number: 6978673
    Abstract: A method for providing micro-electromechanical systems (MEMS) devices with multiple motor frequencies and uniform motor-sense frequency separation is described. The devices each include at least one proof mass, each proof mass being connected to a substrate by a system of suspensions. The method includes controlling the resonant frequencies of the MEMS device by adjusting at least two of a mass of the proof masses, a bending stiffness of the proof masses, a length of the suspensions, and a width of the suspensions.
    Type: Grant
    Filed: February 7, 2003
    Date of Patent: December 27, 2005
    Assignee: Honeywell International, Inc.
    Inventors: Burgess R. Johnson, Max C. Glenn, William P. Platt, David K. Arch, Mark W. Weber
  • Methods and systems for simultaneously fabricating multi-frequency MEMS devices
    Publication number: 20040154400
    Abstract: A method for providing micro-electromechanical systems (MEMS) devices with multiple motor frequencies and uniform motor-sense frequency separation is described. The devices each include at least one proof mass, each proof mass being connected to a substrate by a system of suspensions. The method includes controlling the resonant frequencies of the MEMS device by adjusting at least two of a mass of the proof masses, a bending stiffness of the proof masses, a length of the suspensions, and a width of the suspensions.
    Type: Application
    Filed: February 7, 2003
    Publication date: August 12, 2004
    Inventors: Burgess R. Johnson, Max C. Glenn, William P. Platt, David K. Arch, Mark W. Weber
  • Electromagnetic radiation detectors
    Patent number: 4614957
    Abstract: An improved electromagnetic radiation-sensitive semiconductor device together with a method of making same is disclosed in which surface regions directly beneath the active portion of the electrical contacts are provided with a layer of semiconductor material having a higher bandgap than the radiation sensitive material which repels minority carriers but allows the passage of majority carriers. Because the rate of annihilation of minority carriers at the contact to which they are attracted is reduced, the responsivity of the detector is greatly enhanced.
    Type: Grant
    Filed: December 4, 1984
    Date of Patent: September 30, 1986
    Assignee: Honeywell Inc.
    Inventors: David K. Arch, M. Walter Scott, Darryl L. Smith, Leonard R. Weisberg, R. Andrew Wood