| 摘要 |
PROBLEM TO BE SOLVED: To highly accurately measure optical offset quantity by moving an image pickup means to a first position, storing a proofreading mark as a micro movement second position on the optical axis of a second image pickup part and storing the difference between both positions as optical axis offset quantity. SOLUTION: The parallel degree of the respective parts of a part mounting device is adjusted (STP1), a printed board is sucked/fixed to the upper face of X-Y stages (STP2), and a chip storage tray is fixed on the upper face of a Y stage. A control unit moves the chip storage tray in the Y direction and positions it. Then, it moves the tray to a chip storage side and positions it. A prescribed chip in the chip storage tray is sucked (STP4). A chip inversion X stage is moved to a printed board-side and is positioned (STP5). It is moved to a tray-side and is sheltered (STP6). The control unit recognizes the chip mounting position of the printed board with the operation of a camera (STP7), and the chip mounting position of the printed board is corrected for the correction of a chip position (STP8). Then, the chip can be mounted with high accuracy (STP10).
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