TY - JOUR
T1 - Vertical arrays of copper nanotube grown on silicon substrate by CMOS compatible electrochemical process for IC packaging applications
AU - Choi, Daniel
AU - Fucsko, Viola
AU - Yang, E. H.
AU - Park, Jung Rae
AU - Khalid, Fahad
AU - Kim, Young Kun
PY - 2009
Y1 - 2009
N2 - We present an eiectrodeposition-based fabrication process which can be complementary metal oxide semiconductor (CMOS) compatible for creating vertical arrays of copper (Cu) nanotubes for integrated circuit (IC) packaging applications. Since such nanotube structures offer high surface-to-volume ratios, low resistivity, and high thermal conductivity, they are especially suited for IC packaging applications requiring efficient heat transfer as well as electrical interconnect applications. In this work, Cu nanotube arrays were electrodeposited into alumina nanopore templates with pore diameters of approximately 50 nm and 100 nm. Simulation and measurements of the vertical arrays of Cu nanotubes showed greatly enhanced thermal conductivity in the direction of nanotube alignment compared with Cu nanowires and bulk Cu. The thermal conductivity of the vertical arrays of Cu nanotubes at 100°C is about 0.35W/m·K compared to the 0.24 W/m·K from Cu bulk materials, which shows an enhancement of about 146% as a result of the more efficient thermal conduction in Cu nanotubes.
AB - We present an eiectrodeposition-based fabrication process which can be complementary metal oxide semiconductor (CMOS) compatible for creating vertical arrays of copper (Cu) nanotubes for integrated circuit (IC) packaging applications. Since such nanotube structures offer high surface-to-volume ratios, low resistivity, and high thermal conductivity, they are especially suited for IC packaging applications requiring efficient heat transfer as well as electrical interconnect applications. In this work, Cu nanotube arrays were electrodeposited into alumina nanopore templates with pore diameters of approximately 50 nm and 100 nm. Simulation and measurements of the vertical arrays of Cu nanotubes showed greatly enhanced thermal conductivity in the direction of nanotube alignment compared with Cu nanowires and bulk Cu. The thermal conductivity of the vertical arrays of Cu nanotubes at 100°C is about 0.35W/m·K compared to the 0.24 W/m·K from Cu bulk materials, which shows an enhancement of about 146% as a result of the more efficient thermal conduction in Cu nanotubes.
KW - Copper nanotubes
KW - Electrodeposition
KW - Packaging
KW - Thermal conductivity
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U2 - 10.4071/1551-4897-6.3.154
DO - 10.4071/1551-4897-6.3.154
M3 - Article
AN - SCOPUS:84890611521
SN - 1551-4897
VL - 6
SP - 154
EP - 157
JO - Journal of Microelectronics and Electronic Packaging
JF - Journal of Microelectronics and Electronic Packaging
IS - 3
ER -