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3.7.4 Band-to-Band Tunneling
The direct band-to-band tunneling model (BB) describes the carrier generation in the high field region without
any influence of local traps. The BB tunneling process describes the field
emission of valence electrons leaving back holes. In case the magnitude of the
electric field increases the trap assisted band to band tunneling process is
replaced by the BB process. Two models are used in MINIMOS-NT. The
Schenk model [187] is a complex physically-based model
applicable to Si. Another simpler model [189] is applicable to all
materials.
Vassil Palankovski
2001-02-28