Top-down fabrication of very-high density vertically stacked silicon nanowire arrays with low temperature budget |
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Authors: | Michael Zervas Davide SacchettoGiovanni De Micheli Yusuf Leblebici |
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Affiliation: | EPFL - Ecole Polytechnique Fédérale de Lausanne, 1015, Switzerland |
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Abstract: | We report on a top-down complementary metal oxide semiconductor (CMOS) compatible fabrication method of ultra-high density Si nanowire (SiNW) arrays using a time multiplexed alternating process (TMAP) with low temperature budget. The flexibility of the fabrication methodology is demonstrated for curved and straight SiNW arrays with different shapes and levels. Ultra-high density SiNW arrays with round or rhombic cross-sections diameters as low as 10 nm are demonstrated for vertical and horizontal spacing of 60 nm. The uniqueness of the technique, which achieves several advantages such as bulk-Si processing, low-thermal budget, and wide process window makes this fabrication method suitable for a very broad range of applications such as nano-electro-mechanical systems (NEMS), nano-electronics and bio-sensing. |
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Keywords: | TMAP DRIE Nanowire Stacked 3D Array |
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