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How can I check metal(or layer) density in a box

Venu Ch

Hi All,

    Could you please let me know how to check metal density(or area) in a box using skill? Please share your thoughts. I am using ic616.

Thank you,

Chandaka

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  • Quek

    Hi Chandaka

    I think you can do it as follows:
    a. Use dbProduceOverlap to get all M1 shapes from all levels in the layout
    b. Use skillscript from COS article 11091704 to calculate the area of each shape obtained in step "a"
    c. Delete all shapes generated in step "a"
    d. Get bBox of cellview and calculate density using areaShapes/areaCellView

    Alternatively, it might be good to use ipcBeginProcess to run a DRC tool to do the calculation and then parse through the generated DRC results and report it to CIW. This is a better and most probably faster method.

    Best regards
    Quek

Reply
  • Quek

    Hi Chandaka

    I think you can do it as follows:
    a. Use dbProduceOverlap to get all M1 shapes from all levels in the layout
    b. Use skillscript from COS article 11091704 to calculate the area of each shape obtained in step "a"
    c. Delete all shapes generated in step "a"
    d. Get bBox of cellview and calculate density using areaShapes/areaCellView

    Alternatively, it might be good to use ipcBeginProcess to run a DRC tool to do the calculation and then parse through the generated DRC results and report it to CIW. This is a better and most probably faster method.

    Best regards
    Quek

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