Patent ID: 8042722

Claim:
A conductive ball arraying apparatus comprising: an arraying jig having ball insertion parts at a predetermined array pattern; a ball cup that has an opening part on a lower surface thereof and is capable of housing a plurality of conductive balls; moving means that moves the arraying jig and the ball cup relatively, the moving means moving the ball cup relatively along an upper surface of the arraying jig and dropping off the conductive balls into the ball insertion parts of the arraying jig; upper limit detection means that detect a quantity of the conductive balls in the ball cup and detects whether the quantity of the conductive balls in the ball cup reaches an upper limit when the moving means moves the arraying jig and the ball cup relatively; lower limit detection means that detect a quantity of the conductive balls in the ball cup and detects whether the quantity of the conductive balls in the ball cup reaches a lower limit when the moving means moves the arraying jig and the ball cup relatively; and leakage detection means that detects leakage of the conductive balls from a clearance between the ball cup and the arraying jig on a back side in a relative movement direction of the ball cup, and wherein the each of the upper limit detection means, lower limit detection means and the leakage detection means includes a pair of means for the advance direction of the ball cup and for the retreat direction of the ball cup such that one of each pair thereof is opposed to another one of each pair thereof in a moving direction of the ball cup.