Abstract
Current, amplification, output power and frequency limits of field-effect transistors (FETs) are determined by both the carrier concentration and the carrier transport properties (mobility and velocity) in the channel. In GaAs MESFETs the current conducting channel itself is doped with shallow impurities up to levels of 1017 or 1018 cm-3. These high concentrations degrade the mobility.
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© 1988 Plenum Press, New York
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Prost, W. et al. (1988). Shallow and Deep Impurity Investigations: The Important Step Towards a Microwave Field-Effect Transistor Working at Cryogenic Temperatures. In: Fong, C.Y., Batra, I.P., Ciraci, S. (eds) Properties of Impurity States in Superlattice Semiconductors. NATO ASI Series, vol 183. Springer, Boston, MA. https://doi.org/10.1007/978-1-4684-5553-3_11
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DOI: https://doi.org/10.1007/978-1-4684-5553-3_11
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