Method of suspending copper nanoparticles in tin

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United States of America Patent

PATENT NO 11732328
APP PUB NO 20230056933A1
SERIAL NO

17892518

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Abstract

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Disclosed is a conductive ink composition and a manufacturing method thereof. The composition includes about 50 to about 99 wt % copper nanoparticles and about 1 to about 50 wt % tin. Copper nanoparticles are atomized and suspended in a tin bath, wherein the copper nanoparticles are evenly dispersed within the bath through sonification. The composition is cooled, extracted, and formed into a filament for use as a conductive ink. The ink has a resistivity of about 46.2×E−9 Ω*m to about 742.5×E−9 Ω*m. Once in filament form, the tin-copper mix will be viable for material extrusion, thus allowing for a lower cost, electrically conductive traces to be used in additive manufacturing.

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Patent Owner(s)

Patent OwnerAddress
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE NAVYSILVER SPRING MD

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Holmes, Harrison E Bloomington, US 2 0

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