Dissertation > Excellent graduate degree dissertation topics show

Research on High-frequency Ultrasonic Transducer System for Wire Bonding

Author: SunYunChao
Tutor: ZhangDaWei
School: Tianjin University
Course: Mechanical Manufacturing and Automation
Keywords: ultrasonic transducer material electric circuit match PLL impendance analysis
CLC: TB552
Type: Master's thesis
Year: 2008
Downloads: 108
Quote: 2
Read: Download Dissertation

Abstract


In this dissertation,aiming at improving the performance and quality of the wire bonder and the conversion efficiency of the ultrasonic energy,a methodology for designing high-frequency ultrasonic transducers is proposed,and the influences of material on the performance of the ultrasonic transducers are studied in detail,and the match-drive circuit is also designed.The following works and achievements have been accomplished.1. Based on vibration and wave theory,utilizing the similarity between mechanical vibration and electrical resonance,the model of ultrasonic concentrator and transducer are both formulated,and the electromechanical equivalent circuitry of transducer system has been established. The initial parameters of the transducers made of duralumin,stainless steel and titanium alloy,have been determined, respectively.2. The optimal models are obtained through ANSYS based on their initial models.By elaborately investigating the vibration characteristics of the optimal models,the conclusion is obtained,that the performance of the duralumin transducer is the best in the three models,and the titanium alloy model is much better than the stainless steel one.3. Based on the Phase-Locked Loop(PLL) CD4046,the match circuit has been designed, which includes frequency track,filter,amplifier and electric circuit match.At the same time,a detailed study has been done on the match of ultrasonic transducer,and it was founded that the electric circuit match can be ignored for low-power ultrasonic transducers.4. The ultrasonic transducers are tested using the impedance analyzer and laser Doppler vibrometer,and the results shows remarkable assembly with anlysis results.The work accomplished in this dissertation lays a foundation for the further research of wire bonding,and supplies some methods and practical experience for the research of the ultrasonic transducer system.

Related Dissertations

  1. Study on Coupled Radiation-Phase Change Heat Transfer in Semi-Transparent Materials,V259
  2. Well Detection Pump Steady-Speed Driving System of Brushless DC Motor,TM33
  3. Study of Tin Alloy Carbon Composite Used for Lithium Ion Battery,TM912.9
  4. Grid-Side Converter Control and Wind Turbine Emulator in Direct Drive Wind Power System,TM46
  5. The Technologies for Interoperability of Heterogeneous Enterprise Applications and Their Application in Material SCM,TP311.52
  6. Logistics Management System Supporting Product and Material Tracing and Tracking,TP311.52
  7. Fly Ash study of low temperature ceramic foam,TU52
  8. The Application Study of Lao Tze Thought in the Chinese Teaching of Middle School,G633.3
  9. Design and Implementation of the military material procurement and supply management system,TP311.52
  10. The Research and Design in Low-power、 Low-stray Frequency Synthesizer of WCDMA Terminal Tester,TN74
  11. MWCNTs and ZnO / SnO 2 Composites and NO gas research,TB33
  12. The Value Simulation of the Filtration Process by Fiber Filter Materials,TB34
  13. New words in Chinese as a foreign language teaching and research,H195
  14. The Study of Li-rich Layered Solid-Solution Cathode Materials for Lithium Ion Batteries,TM912
  15. From Vision to Tactility,J524
  16. The Research on Environmental Audit Risk Model,F239.4
  17. Preparation of Functional Multi-walled Carbon Nanotubes for Using in Electrochemical Capacitor Materials and Its Electrochemical Performance,TB383.1
  18. Research on Phase-lock Loop and Current Control Technologies of Grid-Connected Inverters in Conditions of Voltage Dips,TM464
  19. Investigation of SnTe-Ge2 Sb 2 Te5 and Bi2 Te3 Based Phase-change Materials for Applications of Phase Change Memory,TP333
  20. Numerical Study of Heat Transfer Enhancement in the Tubes,TK124
  21. Medical ultrasound imaging Piezoelectric transducer probe studies,TN384

CLC: > Industrial Technology > General industrial technology > Acoustic engineering > Ultrasonic Engineering > Ultrasonic transducer
© 2012 www.DissertationTopic.Net  Mobile