Patent ID: 7765678
Filing Date: 2010-08-03
Classification: B23K,G11B,H01L,H05K,Y02P,Y10T

Abstract:
1. A method of bonding a metal ball for a magnetic head assembly, comprising: preparing a capillary that includes a carrying route that carries a metal ball by using an inactive gas stream and a plurality of cutoff portions formed by cutting a delivery end portion of the carrying route to form grooves in a circumferential direction at regular intervals; disposing the capillary so as to face a bonding surface of an electrode pad of the slider and a bonding surface of an electrode pad of a flexible printed circuit board; carrying the metal ball to the bonding surfaces by introducing the metal ball and the inactive gas stream into the carrying route of the capillary; positioning and retaining the metal ball on the bonding surfaces by the inactive gas stream passing through the carrying route and issued radially from the cutoff portions; and melting the metal ball by directly applying laser beams to the metal ball positioned and retained in the delivery end portion of the carrying route via the cutoff portions from outside of the capillary using a heat source that is not included in the capillary, and bonding the electrode pad of the slider and the electrode pad of the flexible printed circuit board by the melted metal.