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Three-dimensional analog input control device

  • US 20050190152A1
  • Filed: 12/28/2004
  • Published: 09/01/2005
  • Est. Priority Date: 12/29/2003
  • Status: Active Grant
First Claim
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1. A method of 3-dimensional input finger control of different functions in device interfaces by decoupling the components of finger force vector with respect to axes of an orthogonal coordinate system, said method comprises the steps of:

  • providing a semiconductor substrate sensor chip, said semiconductor sensor chip comprising a frame element, a rigid island element and an elastic element mechanically coupling said frame and said rigid island elements;

    providing a set of three or more stress-sensitive IC components integrated into the elastic element and adjacent to the frame element for electrical connectivity to contact pad without connectivity via conductor traversal of elastic element surface;

    coupling at least one force-transferring element from a tactile contact button element to a rigid island element of a sensor die;

    transferring the applied external vector force from the button element through at least one force-transferring element to the rigid island element of the sensor die, and thereby generating electrical outputs from application the external force vector via stress-sensitive IC components positioned in the elastic element each carrying the unique orthogonal system component of signal from the force vector, where the IC component outputs are functions of input component stresses developed from the orthogonal system force components.

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