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  1. #1
    Advanced Member level 1
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    qfn footprint

    Anyone have QFN-32 5x5mm footprint for PCAD2002 or PROTEL99SE?
    Thanks, Gorkin.
    chrdcv@yahoo.com.br

    •   Alt17th May 2005, 16:28

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  2. #2
    KP
    KP is offline
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    qfn32

    Hi friend
    Just search datasheet in website ex. Farnell to get from it.
    And then create footprint according to the spec given in mechanical drawing.
    HERE SEE DATASHEET ATTACHMENT.
    sOME ADVISE TO u:
    STEPS TO CREATE IC QFN FOOTPRINT IN 99SE PROTEL LIBRARY.
    1.OPEN A LIBRARY.
    2.USE PROTEL LIBRARY WIZARDS TO HELP CREATING FOOTPRINT
    3.NAME THE COMPONENT...
    THEN GET INFO FROM THE DATASHEET...
    4.DECIDE IN METRIC SYSTEM : milimeter(mm) or mil
    5.PADS X,Y DIMENSION
    6.PADS SHAPE:ROUND or RECTANGULAR
    7.DISTANCE BETWEEN PAD TO PAD IN X,Y COORDINATION.
    8.LAYOUT (TOP SILKSCREEN) TO THE IC DIMENSION
    9.SAVE UR FOOTPRINT IN THE LIBRARY

    fOR U
    REGARDS
    KP



    •   Alt3rd July 2005, 09:09

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  3. #3
    Full Member level 5
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    qfn32 footprint

    Hello;
    Try the libraries of Protel99. If you won't find it, search the website of protel.
    See also http://www.altium.com



    •   Alt3rd July 2005, 14:50

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  4. #4
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    qfn-32 footprint

    try www.ti.com and www.national.com for the Qfn packages.



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