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Simulation of compound semiconductor devices using a scattering matrix approach

M A Alam and M S Lundstrom

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The scattering matrix approach (SMA) is a new technique for solving the space-dependent Boltzmann equation in semiconductor devices. In this paper we apply the SMA to examine electron transport in a simple AlGaAs/GaAs heterojunction bipolar transistor. The results demonstrate that the scattering matrix approach resolves off-equilibrium transport with the accuracy of a Monte Carlo simulation while also treating near-equilibrium transport and injection across high-energy barriers. These results establish the viability of the SMA for simulating carrier transport in advanced, compound semiconductor devices.


PACS

85.30.De Semiconductor-device characterization, design, and modeling

73.40.Kp III-V semiconductor-to-semiconductor contacts, p-n junctions, and heterojunctions

85.30.Pq Bipolar transistors

Subjects

Electronics and devices

Semiconductors

Surfaces, interfaces and thin films

Dates

Issue 5S (May 1994)



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