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Die bond touch down detector

  • US 5,608,172 A
  • Filed: 03/16/1995
  • Issued: 03/04/1997
  • Est. Priority Date: 03/16/1995
  • Status: Expired due to Term
First Claim
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1. A die bond touch down detector circuit, comprising:

  • a plurality of strain gauges operable to detect deformations of a die bond head;

    an amplifier operable to amplify an output signal from said plurality of strain gauges;

    a filter operable to eliminate noise from said output signal; and

    a microprocessor operable to process said output signal in order to generate a touch down signal indicating that said die bond head has come in contact with an obstacle, wherein said microprocessor performs calibration of positioning equipment that positions said die bond head.

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