| 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 µA/µm\ :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 BJT’s 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. |
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| 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 |
| |
