Paper Title:
Driver Design of the Piezoelectric Ultrasonic Transducer for Wire Bonding Based on Direct Digital Synthesis Technology
  Abstract

In order to design a driver of piezoelectric ultrasonic transducer which can provide high quality ultrasonic signal and be able to realize the frequency tracking rapidly, accurately and intelligently during the bonding process, the ATmega128 microcontroller and AD9851 synthesizer are selected as core components to build an ultrasonic generator and frequency tracking system. The basic circuit units including low pass filter, power amplifier, signal detection and conversion circuits are also established. The test results of the system shows that, based on DDS technology, high quality ultrasonic signal for transducer can be achieved. By combining the two kinds of frequency tracking methods, the system can realize the frequency tracking during the bonding process. It also indicates that the design significantly improve the precision and flexibility of the ultrasonic generator system.

  Info
Periodical
Materials Science Forum (Volumes 697-698)
Chapter
V. MEMS and Ultra-Precision Machining
Edited by
Tian Huang, Dawei Zhang, Bin Lin, Anping Xu, Yanling Tian and Weiguo Gao
Pages
809-812
DOI
10.4028/www.scientific.net/MSF.697-698.809
Citation
H. J. Zhang, F. J. Wang, Y.Y. Hou, D.W. Zhang, "Driver Design of the Piezoelectric Ultrasonic Transducer for Wire Bonding Based on Direct Digital Synthesis Technology", Materials Science Forum, Vols. 697-698, pp. 809-812, 2012
Online since
September 2011
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Price
$32.00
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