| 摘要 |
PURPOSE:To enable each of difference models of work to be set at the optimum position without unit exchange by providing a control means which can set works at bonding positions by controlling a transfer means on the basis of work detection signals of a detection means provided in the upper stream of a bonding stage. CONSTITUTION:A work transferred onto a frame chute 18 is moved over this chute 18 in the longitudinal direction by means of a pitch roller 19 rotated by a roller drive part 43. Then, at the point when the work constructed as the multiseries lead frame is moved to the neighborhood of the first bonding position, a TV camera 13 detects the work X and stops its movement by the pitch roller 19 via central control part 52, picking up the image of the work surface, then feeding the patterns of pad positions of a semiconductor pellet, lead shapes, work outer shapes, etc. out to the central control part 52 as a signal S1. This part 52 determines the optimum position and the present position of the work X and its amount of displacement on the basis of a signal S2 for types and the like and this signal S1, then outputting the adjustment signal obtained on the basis of the results to the roller drive part 43. |
