Two-dimensional electron confinement effects have been modeled and exp
erimentally observed in silicon-on-insulator (SOI) gate-all-around (GA
A) MOSFETs. Solving the Poisson and Schrodinger equations in a self-co
nsistent manner provides the electron wave functions and the energy le
vels within the device channel. The variation of these energy levels,
as well as the electron concentration profile, have been computed as a
function of gate voltage. Transconductance fluctuations are observed
as new energy levels become populated. (C) 1998 Elsevier Science Ltd.
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