METHOD FOR MOUNTING CONDUCTIVE BALL

摘要

PROBLEM TO BE SOLVED: To provide a means for aligning conductive balls in a prescribed array on a ball grid array base plate or the like. SOLUTION: A method for mounting the conductive ball comprises a first step of displacing and superposing perforated parts of an aligning mask 21 and a supply mask 21 having substantially the same arrays and same opening shapes, a second step of introducing the balls 1 into holes 23 of the aligning mask, and a third step of bringing the opening parts 23 and 24 of the masks 21 and 22 into coincidence and disposing the balls 1 in the prescribed array on the base plate.