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How to turn OFF DRC Check during layouting

Casp

Hi,

 I am using Layout XL of IC 6.1.5. I want to turn off the DRC check during my layouting as it gets annoying. By DRC Check, I mean that it automatically checks the minimum spacing and limit the movement of components and nets.

Regards 

  • Sounds as if you have "DRD" turned on. On the Options toolbar there are two icons (the fourth and fifth from the left, both with green arrows between a horizontal and a vertical edge, with the left icon having an exclamation mark in a yellow triangle, and the right icon having a white hand in a red circl. These control respectively DRD "Notify" mode and DRD "Enforce" mode. You can use these icons to turn DRD on or off (Notify just adds markers to tell you there is an error, whereas Enforce tries to prevent you breaking the rule in the first place).

    These can also be controlled via Options->DRD Edit

    Regards,

    Andrew.

  • Hi Andrew,

    I tried this and it doesn't work for me. I will create a new thread with my question.

    Thanks,

  • It worked for me. May be you can try again by restarting cadence and make sure it is turned OFF again.

  • This sounds as if it may be auto-abutment since it is devices you are talking about. The devices in the PDK probably have auto-abutment set up so that if there is connectivity between the pins, it will attempt to abut them and share source/drain regions etc. If there is no connectivity, it will push them apart. The precise behaviour is controlled by the PDK - so maybe there is a bug in the definition of the abut function for these devices?

    You can turn off auto abutment - this is under Options->Layout XL, in the Generation tab. Perhaps you could experiment with that and see if this is the reason?

    If it is not behaving correctly with auto-abutment, you probably need to contact the PDK provider.

    Regards,

    Andrew.

  • in reply to Andrew Beckett

    Could you help me check this?
    The rectangular is metal 2 to 5 with same size and position and the green one is metal 3.

    https://gifyu.com/image/Rjox

  • in reply to BaaB
    BaaB said:
    Could you help me check this?
    The rectangular is metal 2 to 5 with same size and position and the green one is metal 3.

    What on earth has this to do with this 6-year old thread on DRD?

    Andrew

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