Dissertation > Excellent graduate degree dissertation topics show

Study on the Testing and Packaging Technology of AlGaN/GaN HEMT Power Devices

Author: AiJun
Tutor: HaoYue
School: Xi'an University of Electronic Science and Technology
Course: Microelectronics and Solid State Electronics
Keywords: AlGaN / GaN Power devices S-parameters Fixture TRL calibration standards Parasitic
CLC: TN386
Type: Master's thesis
Year: 2011
Downloads: 225
Quote: 0
Read: Download Dissertation


In recent years, with the fast development of semiconductor technology, as well as the material growth technology breakthrough, as the third generation of gallium nitride (GaN) semiconductor has been gradually showing its advantages, the two-dimensional electron gas density and saturation electron mobility rate, etc., based on gallium nitride (GaN) is also increasing. In the field of communications, radar, microwave, microwave power device performance requirements also increasingly high microwave power devices based on wide bandgap semiconductor material gallium nitride (GaN) is becoming a hot topic. This is in the context of this study, AlGaN / GaN heterojunction microwave power devices, materials preparation and device technology described, the basic characteristics of the GaN power devices, including: DC characteristics, current collapse, breakdown voltage and characterization. On this basis, focusing on the microwave properties of gallium nitride (GaN) power devices test were introduced, including: on-chip test, the separation device testing, small-signal test signal test, load-pull (Load Pull) test from test principle, the test program, carried out a detailed analysis of the test system. Due to the small-signal testing and large signal separation device tested and customized solutions that can be directly used, we design a test fixture for 3.7-4.2GHz. Although the use of the SOLT coaxial calibration test is simple, but with the gradual increase in frequency, the test fixture impact can not be ignored, we consider the use of the TRL calibration method. Vector network error model, the design of the 6 GHz TRL calibration standards, including: direct (Thru), short-circuit (Short), open circuit (Open), load (Load), the delay line (Delay Line). This calibration GaN HEMT 9mm device TRL calibration test, the gain S21 7.4dB higher than the the coaxial calibration test results 6.6dB. Can be found at 4GHz TRL calibration test to eliminate a part of fixture losses and thru the assessment found that indeed move to the measurement reference plane measured near. In addition, this paper also designed a removable clamp for de-embedding test, but for semi-fixture test and found that loss to be much larger than thru, this is actually difficult to get the fixture halves accurate S-parameter. Finally, the circuit model to simulate shell and tube, of QF051 tube shell parasitic extraction, simulation 4GHz when the S11, and the results are less TRL calibration measured, but the big difference with the coaxial calibration test This further illustrates the the TRL calibration test is indeed more accurate.

Related Dissertations

  1. Experimental Study on Pyrolysis and Combustion Characteristics of Paint and Tar Based Single Hazardous Wastes,X705
  2. Study of Automobile Ignition Coil Testing System Based on Standard LAH032.905,U472.9
  3. Platelet parameters in patients before and after acute myocardial infarction,R542.22
  4. Color Parameters Changes of Flue-cured Tobacco during Maturing and Curing and the Influence of Air-curing Before Flue-curing on Its Quality,S572
  5. Identification of Water-Logging Tolerance at Seedling Stage and the Difference of Photosynthetic Parameters between Tolerance and Susceptible Types in Brassica Napus L.,S565.4
  6. Evaluation on Stability of Threshing and Redrying Lamina Structure of Tobacco,TS443
  7. Effects of Chlorophyll Deficiency on Photosystem Photochemistry in Rice,S511
  8. Optimization Study on Gating System and Molding Process Parameters of Injection Mold Based on Simulation,TQ320.662
  9. Research on the Milling Performance and Parameters Optimization with Large Parts of Heavy Machine,TG54
  10. Experimental Research on Automobile Engine Inertia Parameters Identification,U467.2
  11. Study on Yiyuan Mine’s Gas Disaster Prevention Technology,TD712
  12. Simulation of the Clinching Process Using FEA Method with Steel and Aluminum Alloy Sheets for Automotive Sunroof Frame,U463.83
  13. Research on the Lumped Reactions Kinetic Model for FDFCC Process,TE624.41
  14. Applying Capillary Electrophoresis to Study the Interaction Between Hemin and DFO,R96
  15. The Modeling Methods and Mechanical Characteristics of the Single Hyperbolic Parabolic Shells,TU399
  16. The Study of Video Coding Technology under Narrowband Communication,TN919.81
  17. The Effect of the Damage Caused by Loudonta Dispar on the Content of the Secondary Substance and Nutritient Substance of Phyllostachys Heterocycla Cv. Pubescens,S763.7
  18. Electromechanical Co-simulation and Experimental Verification for Swing Arm of High-Speed LED Chip Sorting Machine,TN405
  19. Silicon substrate AlGaN / GaN heterostructure growth studies,TN304.05
  20. Shielded motor pump on the main characteristics of radial bearings,TH133.3
  21. The Assessment of Intrinsically Safe Parameters Based on Artificial Intelligence,X913.4

CLC: > Industrial Technology > Radio electronics, telecommunications technology > Semiconductor technology > Field-effect devices
© 2012 www.DissertationTopic.Net  Mobile