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WANG Fu-liang, HAN Lei, ZHONG Jue. A PZT driver signal acquisition and analysis system for ultrasonic wire bonding[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2006, (1): 1-4,8.
Citation: WANG Fu-liang, HAN Lei, ZHONG Jue. A PZT driver signal acquisition and analysis system for ultrasonic wire bonding[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2006, (1): 1-4,8.
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A PZT driver signal acquisition and analysis system for ultrasonic wire bonding

  • College of Mechanical and Electronical Engineering, Central South University, Changsha 410083, China

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  • Received Date: October 24, 2004
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    • Abstract
  • According to the circuit of ultrasonic wire bonding experiment platform,a piezoelectric transducer(PZT) driver signal acquisition circuit was designed.Then a signal acquisition and analysis system was designed with LabView and Matlab.From the characteristics of the PZT voltage and current driver signals,the methods were introduced in this system to calculate instant frequency,virtual value curve and phase difference between them.Therefore,some rules of the instant frequency and phase difference during the bonding process were obtained.And extracting method of the characteristic points(for curve division) was also introduced based on the virtual value curve characteristics.With the driver signals of 1 000 experiments,the position stability of characteristic points was analyzed,which was very important for bonding mechanism research.The experiment results showed that the system is stable and reliable and it can be used to acquire and analyze the PZT driver signal effectively.
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