Bsim3 学习笔记2

Threshold voltage model

Vth对器件操作有三种操作区:

Vg>>Vth in strong inversion region, drift current is dominant.

Vg<<Vth in weak inversion region, diffusion current is dominant.

Vg≈Vth in moderate inversion region, both drift and diffusion current are important.

Ps: drift 漂移;diffusion 扩散

漂移是在电场作用下的运动;扩散是在浓度差驱使下的运动

  1. Threshold voltage model for long channel devices
  2. Threshold voltage model for short channel devices
  3. Narrow Width Effect Model
  4. Threshold Voltage Model in BSIM3v3
时间: 2024-10-12 21:31:38

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