Title page for etd-0715117-141033


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URN etd-0715117-141033
Author Guan-ru Lin
Author's Email Address No Public.
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Department Materials and Optoelectronic Science
Year 2016
Semester 2
Degree Master
Type of Document
Language zh-TW.Big5 Chinese
Title Ag-Al-Sb and Ag-Al-Zn 500℃ Alloys Phase Diagrams Study
Date of Defense 2017-07-21
Page Count 109
Keyword
  • isothermal section
  • Ag-Al-Zn
  • ternary phase diagrams
  • Ag-Al-Sb
  • diffusion couple
  • silver wirebonding
  • Abstract The 500oC isothermal cross-sectional phase diagrams of Ag-Al-Sb and Ag-Al-Zn ternary systems are determined in this study, which can provide the phase stability information for development of new silver wirebonding in semiconductor packaging process. The interfacial phase equilibrium is generated by the hot pressed diffusion couple method, and the phase equilibrium data of the specific alloy samples can comfirm and complete whole phase diagram regions. The equilibrium phases are examined by using electron probe micro-analyzer(EPMA). According to the experimental results, the diffusion couple of these two ternary systems can be successfully produced and the specific composition alloy specimen can be confirmed and fixed by the aging heat treatment at 500 ℃ for 30 days. There are six three-phase regions in the 500℃ isothermal diagram of Ag-Sb-Al ternary system, which are Al/Ag2Al/AlSb, Ag7Sb/Ag13Sb3/AlSb, Ag/Ag2Al/AlSb, Ag/Ag7Sb/AlSb, Ag13Sb3/L/AlSb and L/AlSb/Sb. There are two three-phase regions in the 500℃ isothermal diagram of Ag-Zn-Al ternary system,which are Ag/AgZn/ε and AgZn/Ag5Zn8/ε. Finally, the solid solution range of Ag and AgZn phases can be delimit, which is lacking in previous measurement.
    Advisory Committee
  • Liu-wen Chang - chair
  • Lung-chuan Tsao - co-chair
  • Ker-chang Hsieh - advisor
  • Files
  • etd-0715117-141033.pdf
  • Indicate in-campus at 5 year and off-campus access at 5 year.
    Date of Submission 2017-08-16

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