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added netgen pull request efabless#33
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d-m-bailey authored Oct 15, 2021
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9 changes: 6 additions & 3 deletions docs/source/lvs.rst
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Expand Up @@ -135,6 +135,9 @@ storage
$PDK_ROOT/sky130A/libs.ref/sky130_sram_macros/spice/sram_1rw1r_32_256_8_sky130.spice

2. Disconnected substrate connections yield mismatches.

NB: Merging netgen pull request #33 will remedy the problem without having to explicity flatten the suggested cells.

The ``pmos_m1_w0_550_sli_dli`` is automatically flattened in to ``precharge_1``, but the ``VSUBS`` connection is not recognized as a disconnected node.
Maybe recalculate connectivity after flattening in netgen?::

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unmatched pins = 0
property failures = 0

NB: Merging netgen pull request #33 will remedy the problem without having to explicity flatten the above cells.

3. ``control_logic_r`` has been flattened in the layout, but not in the netlist::
3. ``control_logic_r`` has been flattened in the layout, but not in the netlist.
NB: Merging netgen pull request #33 will remedy the problem without having to explicity flatten the suggested cells::

Subcircuit summary:
Circuit 1: control_logic_r |Circuit 2: control_logic_r
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