Effects of Nanofiber on the Electrical Properties of Anisotropic Conductive Adhesives (ACAs)

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The effects of nanofiber on the electrical properties of anisotropic conductive films (ACFs) were investigated from the perspectives of the joint and insulation resistances. To obtain stable electrical properties for fine-pitch chip-on-film (COF) packages, two kinds of nanofiber ACFs were demonstrated: (1) polystyrene (PS) and polyacrylonitrile (PAN) nanofiber ACFs, which were formed by laminating ACFs on the top and bottom sides of PS and PAN nanofibers, and (2) PAN nanofiber coupled with conductive particle (PAN/Cp nanofiber) ACF, which was made by laminating non conductive films (NCFs) on both sides of a PAN/Cp nanofiber. The effects of the nanofiber thickness, melting, and structure on the electrical properties of the nanofiber ACFs were analyzed.Among the two different nanofiber ACFs, the PAN/Cp nanofiber ACF showed the most stable joint resistance (below 4 m Omega),) and insulation resistance (above 10(8) Omega between 7 mu m bump space) due to the thin insulation layer.
Publisher
AMER SCIENTIFIC PUBLISHERS
Issue Date
2013-01
Language
English
Article Type
Article
Citation

JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v.13, no.1, pp.351 - 355

ISSN
1533-4880
DOI
10.1166/jnn.2013.6275
URI
http://hdl.handle.net/10203/174894
Appears in Collection
MS-Journal Papers(저널논문)
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