Copper nanowire production for interconnect applications

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United States of America Patent

PATENT NO 8834597
SERIAL NO

13485721

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A method of fabricating metallic Cu nanowires with lengths up to about 25 μm and diameters in a range 20-100 nm, or greater if desired. Vertically oriented or laterally oriented copper oxide structures (CuO and/or Cu2O) are grown on a Cu substrate. The copper oxide structures are reduced with 99+ percent H or H2, and in this reduction process the lengths decrease (to no more than about 25 μm), the density of surviving nanostructures on a substrate decreases, and the diameters of the surviving nanostructures have a range, of about 20-100 nm. The resulting nanowires are substantially pure Cu and can be oriented laterally (for local or global interconnects) or can be oriented vertically (for standard vertical interconnects).

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USA AS REPRESENTED BY THE ADMINISTRATOR OF THE NASA300 E STREET SW WASHINGTON DC 20546

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Han, Jin-Woo San Jose, US 170 3342
Meyyappan, Meyya San Jose, US 43 481

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