Patents by Inventor Mohmod M. Tehrani

Mohmod M. Tehrani 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).

  • Smart indexing head for universal lead frame work station
    Patent number: 5307978
    Abstract: Apparatus and a method for orienting individual bonding sites of a lead frame having a plurality of bonding sites includes a universal work station in a work holder. The work holder comprises a gripper mechanism which is mounted on a transverse rail or bar for grasping a lead frame at an edge portion thereof while exposed in a supply magazine. The jaws of the gripper mechanism are pivoted in a horizontal direction which permits the exposed edge of the lead frame to be aligned parallel to a reference plane in a theta orientation direction. While oriented in the theta orientation direction, the lead frame is moved precisely to the window of the work station of the work holder where it is clamped by the top plate and lower plate of the work station before being subsequently bonded.
    Type: Grant
    Filed: August 19, 1993
    Date of Patent: May 3, 1994
    Assignee: Kulicke and Soffa Investments, Inc.
    Inventors: Tommy H. Ricketson, Gautam N. Shah, Bruce M. Bram, Mohmod M. Tehrani
  • Smart indexing head for universal lead frame work station
    Patent number: 5238174
    Abstract: Apparatus and a method for orienting individual bonding sites of a lead frame having a plurality of bonding sites includes a universal work station in a work holder. The work holder comprises a gripper mechanism which is mounted on a transverse rail or bar for grasping a lead frame at an edge portion thereof while exposed in a supply magazine. The jaws of the gripper mechanism are pivoted in a horizontal direction which permits the exposed edge of the lead frame to be aligned parallel to a reference plane in a theta orientation direction. While oriented in the theta orientation direction, the lead frame is moved precisely to the window of the work station of the work holder where it is clamped by the top plate and lower plate of the work station before being subsequently bonded.
    Type: Grant
    Filed: November 15, 1991
    Date of Patent: August 24, 1993
    Assignee: Kulicke and Soffa Investments, Inc.
    Inventors: Tommy H. Ricketson, Gautam N. Shah, Bruce M. Bram, Mohmod M. Tehrani