Sorry, I don't see skywater130.xml file attached.
Could you repost it please our "special interest group"?

What about that bloody "li" that is acronym of local interconnect.
Likely it is NOT a full equavelent of "metal1".
The same story is for example with semi-obsolete ST 180nm H8 tech.
This layer would be typically made of high resistive wolfram.
It's just and extension of capabilities of "bloker" layer between "metal1"
aluminium/copper and silicon, needed by technological reasons.
(aluminia crystall grought can penetrate silicone and break n+/p+
conductivety
or iven short cut gate and active througth gate oxide ...)

The use of "li" is connecting contacts to poly oar active together inside
on transisor
 or likes that...  likely it's a good practice to avoid use of "li" as
interconnect at all;)





On Fri, Sep 25, 2020 at 9:31 AM <electricvlsi@googlegroups.com> wrote:

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>    - SkyWater130 Electric PDK Preview
>    <#m_8042857322573108402_group_thread_0> - 1 Update
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> SkyWater130 Electric PDK Preview
> <http://groups.google.com/group/electricvlsi/t/a75b59c252d8773b?utm_source=digest&utm_medium=email>
> Adam Joseph <a...@westernsemico.com>: Sep 24 02:00AM -0700
>
> Attached is a preview of the SkyWater130 Electric Technology File (aka
> PDK) and a simple demo library. It works with the unmodified
> public Electric version 9.07.
>
> As usual, to use the technology file, go to File -> Preferences ->
> Technology -> Added Technologies -> Add, and choose the attached
> skywater130.xml file. Then restart Electric, File -> Open Library and
> choose the attached sk130.jelib demo library. You should be able to
> open inverter{lay} and run both DRC and LVS (aka NCC). You should also
> be able to import GDS files with File -> Import -> GDS Stream.
>
> Please don't hand-edit the XML file, it is generated by Java code. I
> will be open-sourcing the generator (Apache license), hopefully this
> weekend, as soon as I purge it of anything covered by the NDAs I have
> with other foundries. I will set up a git repository; once I do that
> you can submit patches against that if you find bugs or want to add
> features.
>
> Please don't create any layouts with this technology that you aren't
> prepared to throw away. I will try to stabilize it as quickly as
> possible, but it isn't there yet. If I change layer names or arc
> minwidths it will break your layouts.
>
> Note that most contacts come in two flavors. In the screenshot below,
> look at the two poly contacts in the lower right-hand corner. The one
> on the right is called an "X" contact because if you tilt your head 45
> degrees the layers above and below the contact form an X-shape. The
> one on the left is called a "P" contact because the rectangular layers
> above and below the contact are Parallel. Some contacts (like mcon)
> only come in one flavor because the minimum metal enclosure either above
> or below them is square. The X-contacts tend to be most useful.
> You'll find that in their default (0-degree rotation) form they match
> the track directions of the SkyWater130 digital cell library.
>
> More to come...
>
> - a
>
> PS, SkyWater's naming conventions are a bit weird. "Local Interconnect"
> is really "Metal 0" and "mcon" is "via0".
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