用於電線接合機之接合裝置
An ultrasonic transducer driver has a giant magnetostrictive element, a fastener for holding the giant magnetostrictive element under mechanical pressure, a first field generator for providing a magnetic bias field, a second field generator for providing a magnetic drive field and a magnetic circuit for channelling the magnetic fields in the magnetostrictive element. An ultrasonic transducer for a bonding apparatus has a horn having a bonding tool at its smaller end and a mounting barrel adjoined onto it. The driver coupled to the larger end of the horn.
Inventor: Or, Siu Wing | Yung, Chung Sheung | Chan-Wong, Helen Lai Wa
Priority Number: US7462960B2
IPC Current: B06B000108 | B23K002010 | H01L004112 | H04R001500
US Class: 310026
Assignee Applicant: The Hong Kong Polytechnic University
Title: Driver for an ultrasonic transducer and an ultrasonic transducer
Usefulness: Driver for an ultrasonic transducer and an ultrasonic transducer
Summary: For ultrasonic transducer (claimed) such as piezoelectric ultrasonic transducer used for bonding apparatus (claimed) in wire-bonding machine used to apply pressure and ultrasonic energy for connecting lead wires from semiconductor component to a substrate.
Novelty: Ultrasonic transducer driver used for bonding apparatus, has pair of ring-shaped permanent magnets to provide magnetic bias or magnetic field generated by respective permanent magnet and electric coil to giant magnetostrictive element
生物醫學
醫學影像
OR Siu-wing
YUNG Chung-sheung
CHAN WONG Lai-wa Helen
台灣
