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A comprehensive model on field-effect pnpn devices (Z 2 -FET)

Abstract : A comprehensive model for field-effect pnpn devices (Z2-FET) is presented. It is based on three current continuity equations coupled to two MOS equations. The model reproduces the characteristic S-shaped I-V curve when the device is driven by a current source. The negative resistance region at intermediate currents occurs as the center junction undergoes a steep transition from reverse to forward bias. Also playing a vital role are the mix and match of the minority carrier diffusion current and the generation recombination current. Physical insights to the key mechanisms at work are gained by regional approximations of the model, from which analytical expressions for the maximum and minimum voltages at the switching points are derived.
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https://hal.archives-ouvertes.fr/hal-02003206
Contributor : Frédérique Ducroquet <>
Submitted on : Friday, February 1, 2019 - 10:55:17 AM
Last modification on : Tuesday, May 11, 2021 - 11:37:23 AM

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Yuan Taur, Joris Lacord, Mukta Singh Parihar, Jing Wan, Sébastien Martinie, et al.. A comprehensive model on field-effect pnpn devices (Z 2 -FET). Solid-State Electronics, Elsevier, 2017, 134, pp.1-8. ⟨10.1016/j.sse.2017.05.004⟩. ⟨hal-02003206⟩

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