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  • TI Thinks Resolved

AWR1642: AWR1642

Part Number: AWR1642

Hi,

About the layout question:

The ground vias around the RF traces of the AWR1642 its drill diameter is 5.9mil on TI design guide, if we want to change it to 5mil,

will the RF performance be affected ?

Thanks

michael Su

  • Hi Michael,
    This thread is assigned to concern expert, you will hear back soon.

    Regards,
    Jitendra

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  • In reply to Jitendra Gupta:

    Hello Michael,
    A change from 5.9 mils to 5mils via dia might not change the RF performance much. But you might want to contact your PCB manufacturer if he can build 5mil dia blind vias reliably.

    Regards,
    Vivek
  • In reply to Vivek Dham:

    Hi Vivek,

    Thanks for your reply!

    What factors should be considered, so, the 5mil blind via is build reliable ?

    Thanks

    Michael Su

  • In reply to Michael Su:

    Hello MIchael,
    That is right, you need to check the manufacturability of these vias with you PCB vendor.

    Regards,
    Vivek
  • In reply to Vivek Dham:

    Hi Vivek,

    I mean what manufacturability should be considered, so the 5-mil blind via will be built reliably

    Thanks
    Michael Su
  • In reply to Michael Su:

    Hello Michael,
    You need to check with the manufacturer if they can drill a 5mil blind via. Smaller via size needs better precision equipments and not all manufacturers could do it. Am just curious why do you want to reduce the via size? In general people prefer bigger vias since they cost lesser.

    Regards,
    Vivek
  • In reply to Vivek Dham:

    Hi Vivek,

    Thanks for your reply

    Michael Su

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