Patents Assigned to Wireless MEMS, Inc.
  • Patent number: 7545234
    Abstract: The present invention relates to MEM switches. More specifically, the present invention relates to a system and method for making MEM switches having a common ground plane. One method for making MEM switches includes: patterning a common ground plane layer on a substrate; forming a dielectric layer on the common ground plane layer; depositing a DC electrode region through the dielectric layer to contact the common ground plane layer; and depositing a conducting layer on the DC electrode region so that regions of the conducting layer contact the DC electrode region, so that the common ground plane layer provides a common ground for the regions of the conducting layer.
    Type: Grant
    Filed: January 13, 2006
    Date of Patent: June 9, 2009
    Assignee: Wireless MEMS, Inc.
    Inventor: Chia-Shing Chou
  • Patent number: 7466215
    Abstract: A micro-electro-mechanical system (MEMS) switch is described. The MEMS switch includes both RF-input and output transmission lines formed on a substrate. An RF armature is anchored to the substrate and is electrically connected with the RF-output transmission line. A contact is electrically connected with the RF-input transmission line. Both bias-input and output signal lines are formed on the substrate. A bias armature is anchored to the substrate and is electrically connected with the bias-input signal line. A DC/RF isolation insulator connects the bias armature with the RF armature. When a charge is introduced to the bias-input signal line, the bias armature is forced toward the bias-output signal line, thereby forcing the RF armature to connect with the contact and form an electrical circuit between the RF-input transmission line and the RF-output transmission line.
    Type: Grant
    Filed: August 4, 2006
    Date of Patent: December 16, 2008
    Assignee: Wireless MEMS, Inc.
    Inventor: Chia-Shing Chou
  • Patent number: 7352266
    Abstract: A head electrode region for an electromechanical device is presented, comprising a first insulating layer having electrode region edges; and a head electrode, where the head electrode comprises a locking portion, with the locking portion surrounding the electrode region edges of the first insulating layer such that the head electrode is held fixed relative to the first insulating layer. The head electrode region can further comprise a top region residing above the first insulating layer and a contact region residing below the first insulator, the head electrode region further comprising a second insulating layer formed to cover at least a portion of the top region of the head electrode.
    Type: Grant
    Filed: November 20, 2004
    Date of Patent: April 1, 2008
    Assignee: Wireless MEMS, Inc.
    Inventor: Chia-Shing Chou
  • Patent number: 7230513
    Abstract: A planarized substrate structure for an electromechanical device comprising a substrate layer; a dielectric layer formed on the substrate layer, the dielectric layer formed with conductor spaces therein, the dielectric layer further including a dielectric top surface; and a conducting layer formed as a set of conductors in the conductor spaces of the dielectric layer, the conducting layer having a conducting layer top surface, and where the dielectric top surface and the conducting layer top surface are formed in a substantially co-planar fashion to provide a planarized substrate structure.
    Type: Grant
    Filed: November 20, 2004
    Date of Patent: June 12, 2007
    Assignee: Wireless MEMS, Inc.
    Inventor: Chia-Shing Chou
  • Patent number: 7101724
    Abstract: The present invention relates to MEM switches. More specifically, the present invention relates to a system and method for making MEM switches having a common ground plane. One method for making MEM switches includes: patterning a common ground plane layer on a substrate; forming a dielectric layer on the common ground plane layer; depositing a DC electrode region through the dielectric layer to contact the common ground plane layer; and depositing a conducting layer on the DC electrode region so that regions of the conducting layer contact the DC electrode region, so that the common ground plane layer provides a common ground for the regions of the conducting layer.
    Type: Grant
    Filed: November 20, 2004
    Date of Patent: September 5, 2006
    Assignee: Wireless MEMs, Inc.
    Inventor: Chia-Shing Chou
  • Patent number: 6962832
    Abstract: A method for pseudo-planarization of an electromechanical device and for forming a durable metal contact on the electromechanical device and devices formed by the method are presented. The method comprises acts of depositing various layers forming a semiconductor device. Two principal aspects of the method include the formation of a planarized dielectric/conductor layer on a substrate and the formation of an electrode in an armature of a microelectromechanical switch, with the electrode formed such that it interlocks a structural layer of the armature to ensure it remains fixed to the armature over a large number of cycles.
    Type: Grant
    Filed: February 20, 2004
    Date of Patent: November 8, 2005
    Assignee: Wireless MEMS, Inc.
    Inventor: Chia-Shing Chou