Patent ID: 8545929
Filing Date: 2013-10-01
Classification: B05B,H05K

Abstract:
1. A method of applying conformal coating material from an applicator to a plurality of desired components and areas of an electronic circuit board as determined by a coating program, the method comprising: obtaining the coating program that identifies locations of the desired components and areas of the circuit board to be coated; obtaining an operational sequence from the coating program that is used to move the applicator to the locations of the desired components and areas of the circuit board; communicating control signals that represent the operational sequence to a motion controller; sending command signals based upon the control signals from the motion controller to a robot that moves the applicator to the locations of the desired components and areas of the circuit board; opening and closing a dispensing valve of the applicator at each of the desired components or areas of the circuit board while the applicator is moved over and dispenses an amount of the conformal coating material from the applicator to each of the desired components and areas of the circuit board as directed by the coating program; totaling the amounts of conformal coating material applied to each of the desired components and areas of the circuit board to determine a total dispensed volume of the conformal coating material applied to the circuit board; comparing the total dispensed volume of the conformal coating material applied to the circuit board to a desired dispensed volume of the conformal coating material specified by the coating program; and changing the total dispensed volume of the conformal coating material applied to a subsequent circuit board based upon a comparison of the total dispensed volume of the conformal coating material applied to the circuit board to the desired dispensed volume of the conformal coating material specified by the coating program.