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  3. automatic Router using to route shortest path between two...

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automatic Router using to route shortest path between two pin (IN virtuoso studio IC23.1) it is using in layout XL

KR20250126941
KR20250126941 7 months ago

Hi to all, hope you all are fine and doing well

   i am trying to use virtuoso auto route along with wire assistant to route between two pins, the problem is it is not following Metal orientations while routing and creating drc issues so plz help me to resolve this issuese 

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  • RobMan
    RobMan 7 months ago

    Set the 'Wrong Way Tax' to 'None' in the Wire Assistant....

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  • RobMan
    RobMan 7 months ago

    Hi,

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  • RobMan
    RobMan 7 months ago

    Hi,

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  • KR20250126941
    KR20250126941 7 months ago in reply to RobMan

    hi

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  • KR20250126941
    KR20250126941 7 months ago in reply to KR20250126941

    Thanks for your reply RobMan sir,

    The wrong way tax option is working for metals, but it is not working for vias , i tried using multiple option in via section but not working,

    it is working for metal with width 0.064 and not working for widths 0.08 or more

    i am attaching some pics in the below drive hope you will go through it and reply and help me to resolve this issue.

    DRIVE LINK:

    https://drive.google.com/drive/folders/1hhHI2Pw52_Q7HkwNZTzeLu02XJ_7a99d?usp=drive_link

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  • RobMan
    RobMan 7 months ago in reply to KR20250126941

    Unfortunately the drive link you sent was blocked... probably our internal security.

    Also apologies for the "Hi" messages. The landing page from message sent a reply on <return>!

    Which foundry PDK are you using?

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  • SR202501288723
    SR202501288723 7 months ago in reply to RobMan

    Hello sir my account was blocked I am replying from my friends account 

    We working in the GF 14 nm

    The vias was not following the orientation and 

    When there is a full congestion the auto route was doing shorts and

    To do compact and shortest routing using the tool please suggest us the options has to be enabled and env variable has to be set

    Please answer to these 3 questions which helps us to resolve our problems 

    Thank you

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  • KR20250126941
    KR20250126941 7 months ago in reply to RobMan

    Okey sir, sorry for late reply actually my reply option disabled for some time.

    We are working in the GF 14nm

    The orientation was not following for the vias and 

    When there is a full congestion in the routing the auto route was doing shorts and 

    To have a compact and shortest routing using auto route option what option we have to change and what env variable we have to set 

    Will you Please answer the above 3 questions to resolve my issues 

    Thank you

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  • RobMan
    RobMan 7 months ago in reply to KR20250126941

    For advanced node be sure to use Layout MXL routing assistant.

    Consider the APR flow.

    Define WSPs for routing (APR flow can assist with this).

    Is it device, standard cell or chip assembly routing?

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  • SR202501288723
    SR202501288723 7 months ago in reply to RobMan

    Sir we don't have licence for MXL right now 

    So we are doing it in Layout XL using wire assistance 

    Can you help us to suggest some more options and env variable for better routing and shortest routing 

    We doing it for block level routing for analog 

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