Patent ID: 7385788

Claim:
A carriage assembly of a hard disk drive, comprising: a carriage main body provided so as to be capable of rotating about an actuator shaft; a long tail suspension circuit board which is attached to the carriage main body, on whose end a magnetic head is mounted, and on which a wiring circuit that is electrically connected to the magnetic head is provided, part of the wiring circuit being formed by a flying lead; and a flexible printed circuit board which is attached to a reinforced part provided on the carriage main body and on which a bonding terminal that is bonded to the flying lead is provided, wherein the flexible printed circuit board is attached to the reinforced part by adhesive in which spacers of a substantially equal particle size have been mixed, and the flying lead and the bonding terminal are bonded together by ultrasonic bonding by applying ultrasonic vibration in a state where the flying lead is pressed onto the bonding terminal.