Issue

Vol. 9 No. 3 (2017)

Nanoscale Wire Bonding of Individual Ag Nanowires on Au Substrate at Room Temperature

https://doi.org/10.1007/s40820-017-0126-8
Peng Peng
School of Mechanical Engineering and Automation, Beihang University, Beijing 100191, People’s Republic of China
Wei Guo
School of Mechanical Engineering and Automation, Beihang University, Beijing 100191, People’s Republic of China
Ying Zhu
School of Mechanical Engineering and Automation, Beihang University, Beijing 100191, People’s Republic of China
Lei Liu
Department of Mechanical Engineering, Tsinghua University, Beijing 100084, People’s Republic of China
Guisheng Zou
Department of Mechanical Engineering, Tsinghua University, Beijing 100084, People’s Republic of China
Y. Norman Zhou
Department of Mechanical Engineering, Tsinghua University, Beijing 100084, People’s Republic of China

Corresponding Author: Wei Guo

gwei@buaa.edu.cn

Nano-Micro Letters, Vol. 9 No. 3 (2017), Article Number: 26

Abstract

The controllable wire bonding of individual Ag nanowires onto a Au electrode was achieved at room temperature. The plastic deformation induced by pressure using nanoindentation could break the protective organic shell on the surface of the Ag nanowires and cause atomic contact to promote the diffusion and nanojoining at the Ag and Au interface. Severe slip bands were observed in the Ag nanowires after the deformation. A metallic bond was formed at the interface, with the Ag diffusing into the Au more than the Au diffused into the Ag. This nanoscale wire bonding might present opportunities for nanoscale packaging and nanodevice design.


Highlights:


1 A nanoscale wire-bonding of Ag nanowire with Au substrate has been realized successfully at room temperature.
2 Large plastic deformation could promote the interdiffusion and nanojoining between Ag nanowire and Au electrode.
3 The bonding interface has been examined and the bonding mechanism has been proposed.

Keywords

Nanojoining Bonding Diffusion Interface Nanoindentation
Peng, Peng, Wei Guo, Ying Zhu, Lei Liu, Guisheng Zou, and Y. Norman Zhou. 2017. “Nanoscale Wire Bonding of Individual Ag Nanowires on Au Substrate at Room Temperature”. Nano-Micro Letters 9 (3):26. https://doi.org/10.1007/s40820-017-0126-8.
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