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Abstract ▼ AI-Helper

Pd/Si/Ti/Pt ohmic contact to n-type InGaAs was investigated. As-deposited contact showed non-ohmic behavior, and high specific contact resistivity of $5\times10^{-3}\Omega\textrm{cm}^2$ was achieved by rapid thermal annealing at $375^{\circ}C$ for 10 seconds. However, the speci...

Pd/Si/Ti/Pt ohmic contact to n-type InGaAs was investigated. As-deposited contact showed non-ohmic behavior, and high specific contact resistivity of $5\times10^{-3}\Omega\textrm{cm}^2$ was achieved by rapid thermal annealing at $375^{\circ}C$ for 10 seconds. However, the specific contact resistivity decreased remarkably to $1.7\times10^{-6}\Omega\textrm{cm}^2$ and $2\times10^{-6}\Omega\textrm{cm}^2$ at $375^{\circ}C$/60sec and $425^{\circ}C$/10sec, respectively. Superior ohmic contact and non-spiking planar interface between ohmic materials and InGaAs were maintained even at $450^{\circ}C$, therefore, this thermally stable ohmic contact system is a promising candidate for compound semiconductor devices.