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<https://github.com/IHP-GmbH/IHP-Open-PDK/issues/308|#308 Documented seal ring rule does not match illustration and is probably incorrect>
Issue created by <https://github.com/RTimothyEdwards|RTimothyEdwards>
The document `SG13G2_os_layout_rules.pdf` lists rule `Seal.d` as:

```
Min. Edge-Seal-Activ enclosure of EdgeSeal-Cont, EdgeSeal-Metal(n=1-5), EdgeSeal-TopMetal1, EdgeSeal-TopMetal2 ring     1.30

```

The illustration (to the extent that it can be interpreted at all) indicates that dimension "d" is an active diffusion overlap of EdgeSeal-Cont. In no interpretation does it indicate an overlap of any of the metals.

The illustration appears to be an awkward fusion of a cross-section and a top-down view, or maybe a foundry metal stack-up as imagined by Picasso.
<https://github.com/IHP-GmbH/IHP-Open-PDK|IHP-GmbH/IHP-Open-PDK>