Eutectic bonding of Al-based high aspect ratio microscale structures |
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Authors: | Fanghua Mei J. Jiang W. J. Meng |
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Affiliation: | (1) Mechanical Engineering Department, Louisiana State University, Baton Rouge, Louisiana 70803, USA |
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Abstract: | Metal-based microelectromechanical systems (MEMS) have important advantages over Si-based MEMS. To form any functional metal-based microdevice from metallic high-aspect-ratio microscale structures (HARMS), proper assembly and packaging are required. In this paper, we report successful eutectic bonding of Al-based HARMS using Al–Ge intermediate layers. A series of Al–Ge composite thin films were vapor deposited. Their composition and micro-/nano-scale structure were characterized. The morphology of bonded Al structures was examined, including the morphology of separated surfaces. |
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