JFETIDG Model for Independent Dual-Gate JFETs 1.0.0

By Colin McAndrew1, Kejun Xia2

1. Freescale Semiconductor 2. NXP Semiconductors

JFETIDG is a compact model for independent dual-gate JFETs. It is also applicable to: resistors with metal shields; the drift region of LDMOS transistors; the collector resistance of vertical bipolar transistors; and junctionless MOS transistors.

Listed in Compact Models

Additional materials available

Version 1.0.0 - published on 02 Apr 2017 doi:10.4231/D3TD9N91H - cite this Last public release: 1.0.3

Licensed under NEEDS Modified CMC License according to these terms

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Description

JFETIDG is a compact model for independent dual-gate JFETs. It is applicable to devices with any combination of pn-junction and MOS gates, and is based on an exact solution for the channel conductance integrated along the device length. It includes modeling of the following effects:

  • depletion pinching
  • velocity saturation
  • self-heating
  • channel length modulation (CLM)
  • drain-induced barrier lowering (DIBL)
  • impact ionization
  • mobility modulation
  • parasitic currents, breakdown, and depletion and diffusion charge for pn-junction gates
  • parasitic fixed capacitances for MOS gates
  • local (single device) and global (W and L dependent) geometry models
  • temperature dependence
  • noise
  • statistical variation
  • parameterization in terms of both physical (doping, layer thicknesses, mobility) and phenomenological (depletion pinching, sheet resistance) quantities

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Key References

K. Xia, C. C. McAndrew, and B. Grote, “Dual-gate JFET modeling I: Generalization to include MOS gates and efficient method to calculate drain-source saturation voltage,” IEEE Trans. Electron Dev., vol. 63, no. 4, pp. 1408-1415, Apr. 2016.

K. Xia, C. C. McAndrew, and B. Grote, “Dual-gate JFET modeling II: Source pinch-off voltage and complete Ids modeling formalism,” IEEE Trans. Electron Dev., vol. 63, no. 4, pp. 1416-1422, Apr. 2016.

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Notes

This is the first release of the model. It has been tested on measured and TCAD data from dual-gate JFETs, on resistors with metal shields, on junctionless MOS transistor data, and in conjunction with PSP as a model for LDMOS transistors.