| 摘要 |
A system and a method for mounting electronic components on a printed circuit board are disclosed. The system comprises a component supporting stage, a board bearing stage, mounting heads, vacuum bits, pressure sensors, device for computing thresholds, and device for determining the status of the pick-up operation of the vacuum bits. The method comprises the steps of detecting a first pressure value of a vacuum bit at which the vacuum bit is open and a second pressure value of the vacuum bit at which the vacuum bit is closed, computing a threshold value in response to the detected first and second pressure values, and moving the mounting heads to the board bearing stage in response to a determination that the pressure value of the vacuum bit at which the component is picked up exceeds the threshold values.
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