Patent ID: 7137189

Claim:
A method of constructing an integrated lead suspension, comprising: providing a lead wiring pad on a flexure section of the suspension and a bonding pad on a slider of a head gimbal section of the suspension; placing a solder ball between the lead wiring pad and the bonding pad, such that the solder ball is melted to solder the lead wiring pad and the bonding pad together; wherein the method of constructing further comprises the steps of: first forming the lead wiring pad having a flat surface; thereafter providing a recessed section into which the solder ball is dropped from the flat surface of the lead wiring pad, using gravitational force, in the vicinity of a center line of the surface of the lead wiring pad; and wherein when the integrated lead suspension is an additive type, and the method comprises the steps of: first forming the lead wiring pad having the flat surface using copper plating technology; and thereafter causing protrusion by plating additional copper on portions on both sides thereof excluding the vicinity of the center line of the surface of the lead wiring pad to provide the recessed section.