I'm getting some DRC error from KLayout FEOL checks related to

nsdm.2

and

psdm.2

but those layers are entirely automatically generated by magic, I didn't touch them. ( It's

psdm.2 : min. psdm width in periphery : 0.38um

and

nsdm.2 : min. nsdm width in periphery : 0.38um

) ( See screenshot of the

pdsm

generated by magic. It's a simple compact inverter with the tap for nwell/pwell next to it )

@tnt magic occasionally generates invalid implant layers. In magic, you can see the layer that will be output with

cif see PSDM

(

feedback clear

to erase the markers). You can also force magic to output a generated layer with the

MASK_HINTS

MASKHINTS_<layer>

property. Maybe you can use that to create a pattern with no errors.

Yeah, that's what I did. Thankfully here it was fixable with a single square but can you have multiple MASK_HINTS if I needed multiple shapes ?

I think its multiple boxes for the same property like

MASKHINTS_NDSM "1 1 10 10" "100 100 200 200"

Ok thanks, I'll try that out when I need it next, hopefully not too soon 😅

FYI, yes, you can have multiple boxes in a mask hint but only put quotes around the whole string. So it would be

MASKHINTS_NDSM "1 1 10 10 100 100 200 200"

Magic will parse the string in groups of four coordinates (llx lly urx ury).