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How to connect vias in plane if it's voided?

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Dear all,

The screen shots shows the ground vias in negative and positive planes of a BGA package. Here some of vias are fully voided due to different net and the antipad of via. But the tool indicates it was connected in negative plane and not connected in positive. I have still doubt that whether it is connected to plane during fabrication in nagetive plane? How can i connect these vias? Is it possible using traces? And which one is best-positive or negative-to set the plane? Seeking correct answer.

Thanks,
Shiva.


Originally posted in cdnusers.org by shiva
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    Dear Mike,
    Very thank you for your valuable feed back. As above figure and as you told the prevention of break-up of planes is possible only in large pitch such as 1mm components ( I guess the image is such one). In short pitch BGA's such as 0.65mm, 0.5mm, the prevention of breaking-up of planes is not possible. So i think it's better to use of positive planes in such cases and/or minimum size of via's with minimum size of anti-pad area.

    And one more thing, i'm impressed from your knowledge, experience and implementation method. I think we are working at same field. So i think we can be good friends. What's your opinion? Please mail my personal id: shivain79_at_aol_dot_in , we can share our personal details.

    Warm Regards,
    Shiva.


    Originally posted in cdnusers.org by shiva
Reply
  • archive

    Dear Mike,
    Very thank you for your valuable feed back. As above figure and as you told the prevention of break-up of planes is possible only in large pitch such as 1mm components ( I guess the image is such one). In short pitch BGA's such as 0.65mm, 0.5mm, the prevention of breaking-up of planes is not possible. So i think it's better to use of positive planes in such cases and/or minimum size of via's with minimum size of anti-pad area.

    And one more thing, i'm impressed from your knowledge, experience and implementation method. I think we are working at same field. So i think we can be good friends. What's your opinion? Please mail my personal id: shivain79_at_aol_dot_in , we can share our personal details.

    Warm Regards,
    Shiva.


    Originally posted in cdnusers.org by shiva
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