Novel Technique for Transforming Nanowire Materials into Field Emission Metal Cathode by Hot-embossing with Ball Grid Array

• Main Authors: Chih-Chia Chang, 張志嘉
• Other Authors: Bohr-Ran Huang
• Format: Others
• Language: zh-TW
• Published: 2007
• Online Access: http://ndltd.ncl.edu.tw/handle/06942381704654294316

碩士 === 國立雲林科技大學 === 電子與資訊工程研究所 === 95 === One-dimensional nanostructures, such as nanowires, nanotubes and nanorods, Owing to their unique physical and chemical characteristics and possess high aspect ratio, Suitable for field emission materials, but it is difficult to grow One-dimensional nanostractures by CVD method on metal surface in large area with usable uniformity. This research provides a new method to forming of One-dimensional materials on metal substrate by sn solder ball, Forming nanomaterials ball grid array field emission cathode source. We developed the grown One-dimentional nanomaterials are separated from the Si substrate and transferred onto the pre-positioned BGA balls by pressured hot-bonding under 183 and at different time thus ℃ forming a field emission ball grid array. The transferred One-dimensional nanomaterials demonstrate strong attachment to the Sn ball, and greatly reduced turn-on field. We also mix two kinds of materials to form a composite material cathode with the same approach. The extreme low cost, high reliability and compatible IC packaging property of Sn ball makes it suitable medium for attachment between One-dimention nanomaterials and metal. The transferred One-dimension nanomaterials demonstrates strong attachment to the Sn ball, which prevents detachment from the cathode after long period of extreme field applied. which then deliver electrons to illuminate the screen through carbon nanotubes field emission source. Prove that carbon nanotubes has Uniform field emission characteristic. Large area field emission cathode can be achieved through repeated small area application of such process, which also enables automatic production.