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Adding Connectivity in Power Nets

Debasis Sahu

Hi,

Need a script that can add connectivity property in all the power nets ( VDD,VSS,VDDB etc. ) in the cell layout. Inputs can be list of cells or a top level gds that contains multiple cells with multiple hierarchy.

 

Thanks 

 

Parents
  • Debasis Sahu

    Hi Andrew,

    You are correct. Using VLS XL will solve the problem. But the poin is current database is not VXL compliance and it will take considerable effort to clean up and make it VXL compatable. My current requirement is to find the top power and ground nets and fill via to hook up to the top level metal. My current via fill script is able to fill via where it finds a connectivity information, if it is missing it is not able to add. and now I have to add manually the conneectivity for the metals where it is missing. I want to avoid that . Hope you are clear about the situation.

    My Proposal :

    1. Use PVS/Calibre/Assura on the LVS clean database to get the connectivity information

    2. Pass that database to skill and add property in the net.

    I am trying to write it. But just posted in the forum to avoid reinventing the same :)

    Regards,

    Debasis 

     

Reply
  • Debasis Sahu

    Hi Andrew,

    You are correct. Using VLS XL will solve the problem. But the poin is current database is not VXL compliance and it will take considerable effort to clean up and make it VXL compatable. My current requirement is to find the top power and ground nets and fill via to hook up to the top level metal. My current via fill script is able to fill via where it finds a connectivity information, if it is missing it is not able to add. and now I have to add manually the conneectivity for the metals where it is missing. I want to avoid that . Hope you are clear about the situation.

    My Proposal :

    1. Use PVS/Calibre/Assura on the LVS clean database to get the connectivity information

    2. Pass that database to skill and add property in the net.

    I am trying to write it. But just posted in the forum to avoid reinventing the same :)

    Regards,

    Debasis 

     

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