Carbon nanotubes on flattened tin alloy spheres in a Ball Grid Array (BGA) for cold cathode applications

S. S.Max Chung, Bohr Ran Huang, Chih Chia Chiang, Yon-Hua Tzeng

研究成果: Conference contribution

摘要

Carbon Nanotube (CNT) is an excellent field emission source, and is widely explored in applications like sensors, AFM probes, cathodes for Carbon Nanotube Field Emission Display (CNT-FED), and cathodes for microwave device. The requirements on field emission characteristics for these applications vary, but it is often necessary to attach CNT onto a metal electrode surface. When CNT is grown directly on a metal surface by conventional CVD processes, the poor adhesion of CNT to the metal surface and, in some cases, low electrical conductivity leave room for improvements. We hot-bond CVD grown CNT with Ball Grid Array (BGA) of 0.5 mm diameter Tin alloy (Sn63/Pb37) spheres placed in pre-designated positions on a metal surface to form a cold cathode for microwave device applications. The forming temperature is about 200°C. This method not only provides an easy way to make CNT-metal cathode, it also greatly improve the field emission characteristics of the original CNT. The turn on electric field (at J= 1μA/cm2) is 1.56 V/μm with the field enhancement factor β reaching 2203. The ΔJ/ΔE is around 1.09M.

原文English
主出版物標題2007 7th IEEE International Conference on Nanotechnology - IEEE-NANO 2007, Proceedings
頁面787-790
頁數4
DOIs
出版狀態Published - 2007 十二月 1
事件2007 7th IEEE International Conference on Nanotechnology - IEEE-NANO 2007 - Hong Kong, China
持續時間: 2007 八月 22007 八月 5

出版系列

名字2007 7th IEEE International Conference on Nanotechnology - IEEE-NANO 2007, Proceedings

Other

Other2007 7th IEEE International Conference on Nanotechnology - IEEE-NANO 2007
國家/地區China
城市Hong Kong
期間07-08-0207-08-05

All Science Journal Classification (ASJC) codes

  • 電氣與電子工程
  • 原子與分子物理與光學

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