Modeling and metrology of metallic nanowires with application to microwave interconnects

Broadband characterization of individual metallic nanowires for microwave interconnect applications is discussed. Circuit and method of moments (MoM) modeling are benchmarked using a set of coplanar waveguide (CPW) test devices with Au microwire (MW) interconnect and air gaps in the middle of the CP...

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Hauptverfasser: Kichul Kim, Wallis, T Mitch, Rice, Paul, Chiang, Chin-Jen, Imtiaz, Atif, Kabos, Pavel, Filipovic, Dejan S
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Wallis, T Mitch
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Imtiaz, Atif
Kabos, Pavel
Filipovic, Dejan S
description Broadband characterization of individual metallic nanowires for microwave interconnect applications is discussed. Circuit and method of moments (MoM) modeling are benchmarked using a set of coplanar waveguide (CPW) test devices with Au microwire (MW) interconnect and air gaps in the middle of the CPW. Comparison with measurements reveals significantly larger errors from circuit models though all dimensions are much smaller than wavelength. Similar CPW devices hosting 100 nm and 250 nm diameter Pt nanowires (NWs) are then investigated to determine the ranges of conductivity and contact resistance for each Pt NW. An algorithm that utilizes the transmission line theory and different nanowire lengths to determine the actual conductivity and contact resistance is proposed and validated.
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subjects Benchmark testing
Circuit testing
Conductivity
contact impedance
Contact resistance
Coplanar waveguides
Integrated circuit interconnections
Interconnects
measurement
Metrology
Microwave devices
modeling
Moment methods
Nanowires
title Modeling and metrology of metallic nanowires with application to microwave interconnects
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