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Hand soldering 0201

Discussion in 'Electronic Design' started by Rouqueen, Aug 6, 2007.

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  1. Rouqueen

    Rouqueen Guest

    Hi all

    In a near future, we will design board with 0201 components. My main
    concern is hand soldering as we dont want to subcontract for our
    prototype assembly.

    I have just finished a 0402 assembly (by hand) and even with the
    equipment we have (very small solder tips), it was not a walk in a
    park but it was ok. Our board is pretty dense and sometimes solder
    tips touch another component while soldering another :)

    What do you use for equipment (soldering iron, solder paste or

    thank you

  2. Eeyore

    Eeyore Guest

    Do make sure you don't sneeze when placing them !

  3. Rouqueen

    Rouqueen Guest

    Indeed :)
  4. You might look into getting a Zephertronics unit:

    Also, the Metcal hoof tips work fairly well for small surface mount
    parts. Instead of directly soldering each pin, you use the tip to
    move a small volume of molten solder around that wicks to the pads.
  5. DJ Delorie

    DJ Delorie Guest

    Been there :)

    The first couple of times around, I used a metcal iron with a 20 mil
    tip, but the wire solder kept balling up instead of wetting the parts.
    Now, what I do is use paste.

    Two options for putting the paste down:

    1. Use a stencil. You can make your own (brass), or have one made
    (mylar, stainless)

    2. Use a syringe applicator and dab it down by hand.

    Two options for reflowing the paste:

    1. Use your iron. A fine tip anywhere near the paste will reflow the
    paste, or you can use a hot air pencil or talon.

    2. Use a hotplate. and see the
    tutorials at

    With the iron, the tricky bit is holding the part in place while you
    heat it. Either a sharpened toothpick or fine placement tweezers will
    do, but don't trust the iron to not pick the part up once the solder
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