| 摘要 |
PURPOSE:To dissolve setting shift between a print wiring plate and a drill and realize high density multi-layer plate formation by making constitution so that the outer layer drilling of the multi-layer print wiring plate may be conducted by carrying out the image recognition of an inner layer circuit pattern. CONSTITUTION:A CCD camera 9 measures reference pattern coordinates at four corners of a print wiring plate 3. A controller 12 calculates displacement from reference pattern design position coordinates on the basis of data subjected to measurement by means of the CCD camera 9, and seeks a processing origin correction amount. Next, drilling data incorporated with this correction amount are sent out of the controller 12, and a table 6 is moved in an X axis direction and a spindle 7 is moved in a Y axis direction, and drilling is carried out by making the spindle 7 up and down. |
