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 QFN Thermal Pad Vias 

Last post Mon, Feb 24 2014 12:55 PM by VincentS. 0 replies.
Started by VincentS 24 Feb 2014 12:55 PM. Topic has 0 replies and 1100 views
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  • Mon, Feb 24 2014 12:55 PM

    • VincentS
    • Top 500 Contributor
    • Joined on Mon, Feb 8 2010
    • ,, CT
    • Posts 36
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    QFN Thermal Pad Vias Reply

    I have several QFN packages that will need thermal vias. Question : How many thermal vias can I use before causing solder wicking and solder voids? I am planning on 10mil drill vias on 40mil centers (for a total of 6) in a 120x120mil pad. I would like to avoid plugging/top plate.

     

    Any rule of thumb for this?

     

    • Post Points: 5
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Started by VincentS at 24 Feb 2014 12:55 PM. Topic has 0 replies.