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標題Title: Carbon Nanotubes on Flattened Tin Alloy Spheres in a Ball Grid Array (BGA) for Cold Cathode Applications
作者Authors: 鍾慎修,S.S. Max Chung..等
上傳單位Department: 電子工程系
上傳時間Date: 2010-6-18
上傳者Author: 鍾慎修
審核單位Department: 電子工程系
審核老師Teacher: 鍾慎修
檔案類型Categories: 論文Thesis
關鍵詞Keyword: TermsCarbon Nanotube,Field Emission, Field Emission Display, Cold Cathode, Microwave cathode
摘要Abstract: 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 mmdiameter 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 ºC. 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= 1A/cm2) is 1.56 V/μm with the field enhancement factor  reaching 2203. The J/E is around 1.09M.

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2010_6_2975b083.pdf 502Kb pdf 230 617
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