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How to make nanoroute understand "USEMINSPACING"

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Hi,

I am facing the following issue for quite sometime. Wonder if anyone is also facing the issue and has a solution?

I have "USEMINSPACING OBS OFF ;" in the technolog lef. However, nanoroute places alot of wire at min spacing to "thick blockage". VerifyGeometry is able to detect these DRC, but nanoroute does not detect the violations. It is quite a pain to clean these violations post-layout.

Anyone also face this issue? Thanks.

Regards,
Eng Han



Originally posted in cdnusers.org by EngHan
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    It is possible that Nanoroute still did not see those 5 violationsblockages as fat blockages. In lef5.6 syntax, you can make those blockages with the spacing you want. You can check the lef reference doc. As for why Nanoute did not see the violation, one possible answer is that those are power wire with slotting and the lef is modeled it as thin blockage.

    li siang


    Originally posted in cdnusers.org by lisiang
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  • archive

    It is possible that Nanoroute still did not see those 5 violationsblockages as fat blockages. In lef5.6 syntax, you can make those blockages with the spacing you want. You can check the lef reference doc. As for why Nanoute did not see the violation, one possible answer is that those are power wire with slotting and the lef is modeled it as thin blockage.

    li siang


    Originally posted in cdnusers.org by lisiang
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