Please use this identifier to cite or link to this item:
|Title:||Driver for an ultrasonic transducer and an ultrasonic transducer|
|Authors:||Or, Derek Siu-wing|
Chan, Helen L. W.
|Source:||US Patent 7,462,960 B2. Washington, DC: US Patent and Trademark Office, 2008.|
|Abstract:||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.|
|Rights:||Assignee: The Hong Kong Polytechnic University.|
|Appears in Collections:||Patents of PolyU|
All items in the PolyU Institutional Repository are protected by copyright, with all rights reserved, unless otherwise indicated. No item in the PolyU IR may be reproduced for commercial or resale purposes.