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Filler generation for Klayout thread <@U073WEG1PEV...
# ihp-sg13g2
k
Filler generation for Klayout thread @Daniel Schultz @Daniel Arevalos
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Do you have some scripts to share?
and my experience was some metal layers are filled quite a lot from the IO cells. So, maybe the space between fillers and the filler cell width should be configurable.
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Hello @Daniel Schultz, yesterday I started working on the ActFil and the GatPolyFil. The latest update on this is on the "filler_ActGatP.lydrc" and the reference I am using is the "filler_Metal1-5.lydrc" that was provided by @Krzysztof Herman.
filler_ActGatP.lydrcfiller_Metal1-5.lydrc
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Yes, I got the M1-5 and TM1-2 files three weeks ago.
Let me run them through my GDS file later
and thanks 🙂
👍 1
@Daniel Arevalos I see quite a lot GFil.d.Active, d.Cont and d.pSD violations. They are mostly located in the IO ring
this is the GDS I use
@Krzysztof Herman is layer 
TRANS
actually still is use?
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as far as I know yes
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ah okay. This layer should be part of the filler scripts too
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In my opinion yes, you should implement adequate DRC spacing Filler <-> TRANS
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there is actually already a drc rule for MFil.d (filler space to TRANS)
@Daniel Arevalos this script generates filler cells with aprox. 50% density in each layer and passes all DRC tests.
filler_Metal1-5.lydrc
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@Daniel Schultz thanks !! I will test it with my GDS. Also, this script is now working, can you give it a try?
filler_ActGatP.lydrc
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Hi @Daniel Arevalos I get following warnings in klayout
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/opt/elements/pdks/IHP-Open-PDK/ihp-sg13g2/libs.tech/klayout/tech/macros/filler_ActGatP.lydrc:167: warning: already initialized constant DRC::DRCEngine::Activ_cpy
/opt/elements/pdks/IHP-Open-PDK/ihp-sg13g2/libs.tech/klayout/tech/macros/filler_ActGatP.lydrc:136: warning: previous definition of Activ_cpy was here
/opt/elements/pdks/IHP-Open-PDK/ihp-sg13g2/libs.tech/klayout/tech/macros/filler_ActGatP.lydrc:169: warning: already initialized constant DRC::DRCEngine::Poly_cpy
/opt/elements/pdks/IHP-Open-PDK/ihp-sg13g2/libs.tech/klayout/tech/macros/filler_ActGatP.lydrc:137: warning: previous definition of Poly_cpy was here
/opt/elements/pdks/IHP-Open-PDK/ihp-sg13g2/libs.tech/klayout/tech/macros/filler_ActGatP.lydrc:170: warning: already initialized constant DRC::DRCEngine::Cnt_cpy
/opt/elements/pdks/IHP-Open-PDK/ihp-sg13g2/libs.tech/klayout/tech/macros/filler_ActGatP.lydrc:138: warning: previous definition of Cnt_cpy was here
/opt/elements/pdks/IHP-Open-PDK/ihp-sg13g2/libs.tech/klayout/tech/macros/filler_ActGatP.lydrc:171: warning: already initialized constant DRC::DRCEngine::TRANS_cpy
/opt/elements/pdks/IHP-Open-PDK/ihp-sg13g2/libs.tech/klayout/tech/macros/filler_ActGatP.lydrc:139: warning: previous definition of TRANS_cpy was here
/opt/elements/pdks/IHP-Open-PDK/ihp-sg13g2/libs.tech/klayout/tech/macros/filler_ActGatP.lydrc:172: warning: already initialized constant DRC::DRCEngine::NWell_cpy
/opt/elements/pdks/IHP-Open-PDK/ihp-sg13g2/libs.tech/klayout/tech/macros/filler_ActGatP.lydrc:140: warning: previous definition of NWell_cpy was here
/opt/elements/pdks/IHP-Open-PDK/ihp-sg13g2/libs.tech/klayout/tech/macros/filler_ActGatP.lydrc:195: warning: already initialized constant DRC::DRCEngine::NWell_cpy2
/opt/elements/pdks/IHP-Open-PDK/ihp-sg13g2/libs.tech/klayout/tech/macros/filler_ActGatP.lydrc:156: warning: previous definition of NWell_cpy2 was here
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Activ Area	=	835615.449um^2
Activ %		=	49.445%	Min = 35 	 Max = 55

GatPoly Area	=	283380.09um^2
GatPoly %	=	16.768%	Min = 35 	 Max = 55
Activ looks good but GatPoly is not enough filled
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from where did you get the 35% min for GatPoly ? As far as I know is 15%
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I just saw the same... Krzystof gave me this script but I think it should be min 15
and I dont see any max density actually
just got one error related to Activ/GatPoly. Looks like an issue with the DRC script. Good job!
The only think that bothers me a little bit that the file extension is 
lydrc
and it's listed as DRC. In my opinion this should be a 
lym
file or something else and listed under macros. For me, DRCs are scripts to check your design and not modify/alter it.
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I agree, @Krzysztof Herman what is you opinion on this ?
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@Daniel Arevalos I also opened this PR yesterday to drawn nofill areas in the sealring: https://github.com/IHP-GmbH/IHP-Open-PDK/pull/142
Hey @Daniel Arevalos do you have more filler scripts to share which I could try? 🙂
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Hi @Daniel Schultz, nothing since friday. I am on vacations for a week 🥳 Haha. We have left the top1 and top2 fillers. In case you want to look for it.
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@Daniel Arevalos I converted them to lym files, added proper menu names and fixed some minor issues inside. They passed the open drcs ...
sg13g2_filler_TopMetal.lymsg13g2_filler_ActGatP.lymsg13g2_filler_Metal.lym
hope you had a great vacation 😉
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