| 摘要 |
PROBLEM TO BE SOLVED: To provide a conductive ball mounting device and a mounting method therefor, which can correctly discriminate the presence of conductive balls. SOLUTION: In this mounting method of conductive balls, which mounts the conductive ball on a work by a sucking head 31, a method which discriminates the presence of the conductive ball at the lower surface of the sucking head 31, based on the electric signal outputted from a light receiving part 43b by illuminating light from a light emitting part 43a, and a method which discriminates the presence of the conductive balls at the lower surface of the sucking head 31 based on the image data obtained by picking up the image of the lower surface of the sucking head 31 with a camera 4, are combined. Thus, the excess attached conductive balls on the lower surface of the sucking head 31 and the conductive balls remaining at the lower surface of the sucking head 31 after the mounting of the work are detected. In this way, the presence of the conductive balls can be discriminated correctly.
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