METHOD OF FORMING AT LEAST ONE BONDING STRUCTURE

摘要

A method of forming at least one bonding structure may be provided. A ball may be formed on the front end of a wire outside a capillary. The capillary may be moved downwardly to form a preliminary compressed ball on a first pad using the ball. The capillary may be moved upwardly to form a neck portion on the preliminary compressed ball using the preliminary compressed ball and the wire. The capillary may be moved obliquely and downwardly to form a compressed ball. The capillary may extend the wire from the compressed ball to a second pad.