Computing stuff tied to the physical world

SMD pick and place

In Hardware on Sep 7, 2009 at 00:01

Now that the solder stencil is ready for use, I went ahead and tried it – using solder paste and a (not-so-wide) squeegee type tool. Here’s the result:


If you look closely, you can see how nicely the paste ends up on the pads:


The stencil needs to be cleaned for future re-use, though:


(sorry for the incandescent light reflection)

Ok, now the tricky part – the “pick and place machine” (me). The result:


That’s the illuminated magnifying glass I’m using, by the way.

Looks perfect to me:


Baking now, in my JeeNode-based reflow controller:


Hm, this stuff is considerably smellier than before. Here’s the result…


Wait a minute – if you look closely you can see that a lot of the pads show up as a gray surface, not the shiny metal I was expecting!

WHOOPS – I used a temperature profile for leaded solder, but this is lead-free solder – silly me!

Stay tuned for the rest of this story… tomorrow.

  1. I really can’t wait to get my hands on one of these babies! It looks marvelous small and handy. A candidate to dethrone Boarduino& Arduino Nano? ;) But thumbs up for going SMT!

  2. If you get tired, maybe this can be your next project?

  3. Hi can you provide detail description your JeeNode-based reflow controller and device for soldering. Are you try soldering BGA chips also ?


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