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20V native NMOS FET
-------------------
Spice Model Information
~~~~~~~~~~~~~~~~~~~~~~~
- Cell Name: :cell:`sky130_fd_pr__nfet_extenddrain`
- Model Name: :model:`sky130_fd_pr__nfet_20v0_nvt`
Operating Voltages where SPICE models are valid, subject to SOA limitations:
- :math:`V_{DS} = 0` to +22V
- :math:`V_{GS} = 0` to 5.5V
- :math:`V_{BS} = 0` to -2.0V
Details
~~~~~~~
The 20V native NMOS FET is similar to the 20V isolated NMOS FET, but has all Vt implants blocked to achieve a very low VT.
Major model output parameters are shown below and compared against the EDR (e-test) specs
.. include:: nfet_20v0_nvt-table0.rst
The symbol of the :model:`sky130_fd_pr__nfet_20v0_nvt` (20V native NMOS FET) shown below.
|symbol-nfet_20v0_nvt|
The cross-section of the 20V native NMOS FET is shown below.
|cross-section-nfet_20v0_nvt|
.. |symbol-nfet_20v0_nvt| image:: symbol-nfet_20v0_nvt.svg
.. |cross-section-nfet_20v0_nvt| image:: cross-section-nfet_20v0_nvt.svg