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Soldering a 24pin SMD IC. The base is soldered to the board. How do I do this?

Discussion in 'General Electronics Discussion' started by frascati, Mar 21, 2013.

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  1. frascati

    frascati

    3
    0
    Feb 4, 2013
    Pretty new to building with SMD.

    All the tutorials I've watched on youtube place the IC and solder the pins to the lands.

    I'm replacing a 24pin IC and after removing it I discover that it's bottom is a large solder pad that is soldered to the board's ground.
    [​IMG]
    [​IMG]
    I have not seen mention of this in any tutorials.
    How Is one supposed to make this solder flow if you cannot actually see it happening?
     
  2. CocaCola

    CocaCola

    3,635
    5
    Apr 7, 2012
    Reflow oven or hot air heat gun.... As for knowing when, you can tap the chip with a pair of tweezers and observe it or simply watch it settle into place...

    Since you have holes in the thermal pad you can try this technique...

     
  3. frascati

    frascati

    3
    0
    Feb 4, 2013
    Coca Cola thank you very very much for that link.

    Chip is in, up, and running fine!
     
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