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Electronic component mounting apparatus and method of mounting electronic component

  • US 5,177,864 A
  • Filed: 05/30/1991
  • Issued: 01/12/1993
  • Est. Priority Date: 09/06/1989
  • Status: Expired due to Fees
First Claim
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1. A method of mounting an electronic component having a plurality of leads on a printed circuit board, comprising the steps of:

  • roughly observing the position of an electronic component held by a suction nozzle by means of a camera and determining the rough deviation of the observed position of the electronic component from a desired position;

    roughly correcting for the observed deviation of the electronic component in an X-axis and a Y-axis direction by relatively moving the suction nozzle and a movable table means supporting a circuit board on which the component is to be mounted in an X-axis and Y-axis direction of the circuit board and roughly correcting for the observed deviation of the electronic component in a Θ

    direction by relatively rotating the suction nozzle and the circuit board around an axis through the center of the electronic component held thereon;

    precisely measuring the position of the electronic component held by the suction nozzle by precisely measuring the deviation of a position of at least one lead of the electronic component from a desired position for determining the precise deviation of the observed position of the electronic component from a desired position on the printed circuit board supported on said movable table means;

    precisely correcting for the observed deviation of the electronic component in an X-axis and a Y-axis direction by moving said movable table means in the X-axis and Y-axis direction, and precisely correcting for the observed deviation of the electronic component in the Θ

    direction by relatively rotating the printed circuit board and the component around an axis of rotation which extends through the circuit board in a direction perpendicular to the circuit board; and

    placing the electronic component on the printed circuit board.

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