Device performance analysis using Monte-Carlo simulator for SOI MOS transistors on solid-phase-recrystallized silicon films

Abstract

A Monte Carlo simulator has been developed that can trace random nucleation and regrowth characteristics for silicon-on-insulator MOS transistors and can predict the distribution of device characteristics. Activation energies for nucleation and regrowth in solid-phase were derived to be 3.9 eV and 2.8 eV, respectively. Localized states caused by the regrowth boundary were observed as a function of regrown grain size where values were two orders of magnitude larger than for bulk MOS. Threshold voltage shift and carrier mobility could be interpreted mainly in terms of the density-of-states and boundary structure; the distribution of threshold voltage and mobility were predicted closely by the Monte Carlo simulator