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The spreading resistance of a microscopic area of contact (the “-spot”) located in a thin film is studied for both Cartesian and cylindrical geometries. The effect of film thickness on the spreading resistance is evaluated over a large range of aspect ratios. In the limit , the normalized thin-film spreading resistance converges to the finite values, i.e...
Summary form only given. Electrical contact is important to thin film devices and integrated circuits, carbon nanotubes based cathodes and interconnects, field emitters, wire-array Z pinches, metal insulator-vacuum junctions, and high power microwave sources, etc. Because of the surface roughness on a microscopic scale, true contact between two pieces of conductors occurs only at the asperities of...
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