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Variably dimensioned capacitance sensor elements

  • US 20090021267A1
  • Filed: 07/17/2006
  • Published: 01/22/2009
  • Est. Priority Date: 07/17/2006
  • Status: Active Grant
First Claim
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1. A capacitance sensing apparatus comprising:

  • a layer of material; and

    a first capacitance sensor element covered by said layer of material, said first capacitance sensor element configured to sense a capacitance induced when an object is proximate to a sensing surface;

    wherein said layer of material has an uneven effect on a measure of capacitance, wherein said first capacitance sensor element is dimensioned to compensate for said effect.

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