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Bipolar (PNP)
-------------
Spice Model Information
~~~~~~~~~~~~~~~~~~~~~~~
- Cell Name: :cell:`sky130_fd_pr__pnp_05v5`
- Model Names: :model:`sky130_fd_pr__pnp_05v5`, :model:`sky130_fd_pr__pnp_05v5`
Operating regime where SPICE models are valid
- :math:`|V_{CE}| = 0` to 5.0V
- :math:`|V_{BE}| = 0` to 5.0V
- :math:`I_{CE} = 0.01` to 10 µAm\ :sup:`2`
Details
~~~~~~~
The SKY130 process offer a free PNP device, which utilizes the substrate as the collector. This device is not independently optimized, and can be used in forward-active mode. The following sizes of PNP are available:
- ungated device with emitter 0.68 x 0.68 (A=0.4624 µm\ :sup:`2`)
- ungated device with emitter 3.4 x 3.4 (A=11.56 µm\ :sup:`2`)
Using this device must be done in conjunction with the correct guard rings, to avoid potential latchup issues with nearby circuitry. Reverse-active mode operation of the BJTs are neither modeled nor permitted.
E-test specs for these devices are shown in the table below:
.. include:: pnp_05v0-table0.rst
Symbols for the :model:`sky130_fd_pr__pnp_05v5` is shown below
|symbol-pnp_05v0-a| |symbol-pnp_05v0-b|
The cross-section of the :model:`sky130_fd_pr__pnp_05v5` is shown below.
No deep n-well exists in this device; the collector is the substrate.
|cross-section-pnp_05v0|
.. |symbol-pnp_05v0-a| image:: symbol-pnp_05v0-a.svg
.. |symbol-pnp_05v0-b| image:: symbol-pnp_05v0-b.svg
.. |cross-section-pnp_05v0| image:: cross-section-pnp_05v0.svg