Calibration method in a chip mounting device

摘要

A method of accurately calibrating a movement control system of mark recognition means in a chip mounting device, comprising the steps of: recognizing a first recognition mark put on a head ( 2 ) and a second recognition mark ( 13 ) put on a stage ( 26 ) with two-field recognition means ( 7 ) so as to calibrate and update the preceding control parameters inputted into the movement control system of the two-field recognition means ( 7 ); and, with the head ( 2 ) lowered to position the first recognition mark closely to the second recognition mark ( 13 ), recognizing both marks with third recognition means ( 20 ) when the two-field recognition means ( 7 ) is moved back so as to calibrate and update the preceding control parameters inputted into the movement control system of the two-field recognition means ( 7 ).