| 摘要 |
PROBLEM TO BE SOLVED: To provide a high-density ceramic wire bonding capillary to be mounted on a wire bonder to weld a wire to a bonding face with an ultrasonic vibration, where the capillary has a high mechanical strength at the tip enough to transmit the vibration. SOLUTION: A welding part 54, focusing part 53 and body are unified and sintered in a mold to form the outside taper of the welding part 54 at a first angle A1, that of the converging part 53 at a second angle A2, the tape of a through-hole 42 at a third angle A3 equal or less than the second angle. The second angle is 30deg. and the first and third angles are each 10deg. |
