发明名称 |
Driver for an ultrasonic transducer and an ultrasonic transducer |
摘要 |
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.
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申请公布号 |
US7462960(B2) |
申请公布日期 |
2008.12.09 |
申请号 |
US20040751718 |
申请日期 |
2004.01.05 |
申请人 |
THE HONG KONG POLYTECHNIC UNIVERSITY |
发明人 |
OR SIU WING;YUNG CHUNG SHEUNG;CHAN-WONG HELEN LAI WA |
分类号 |
B06B1/08;B23K20/10;H01L41/12;H04R15/00 |
主分类号 |
B06B1/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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