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Metallic nanowire films, especially silver nano-wires (AgNWs) and copper nanowires (CuNWs), with a random mesh structure have attracted considerable attention as high-performance flexible transparent films to replace the traditional, expensive, and brittle indium tin oxide films. These films have been widely used in displays, touchscreens, and solar cells to achieve next-generation electronics that...
Mass production techniques to provide highly sensitive and low-cost antennas are demanded to achieve the Internet of Things. Printing is a suitable technique for mass production of low-cost antennas. In this study, three types of printed silver nanowire (AgNW) antennas were fabricated by preparing inks containing AgNWs of different width and length. Printed antennas of short, narrow AgNWs achieved...
We studied the high-frequency characteristics at 0.5–1.5 GHz of mask-printed silver paste lines with different filler sizes (nanoparticles or micro-sized flakes) and an etched copper foil on glass fiber reinforced epoxy substrate. Although the resistivity of silver-nanoparticle lines was 10 times larger than that of the etched copper foil, its return loss was almost equal to that of the etched copper...
Electromigration behavior of Sn-3.0wt%Ag-3.0wt%Bi-4.0wt%In (SABI) and SABI+Co solder joints with respect to the crystallographic orientation of Sn grains was investigated. The test sample had direct contact on Cu substrate with Cu dummy chip and the applied direct current was 20 A at 125 °C solder joint temperature. Before current stressing SABI solder solidified to form large Sn grains. After current...
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