flow solder...the whole board?

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thephilbot
 
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Joined: Sat Jan 13, 2007 8:42 pm

flow solder...the whole board?

Post by thephilbot »

hi all,

i have been researching the wave bubble a lot, getting familiar with with the build and such. i've found that solderpaste is really good for the high density chips that are required, and as i've thought about it, i've been wondering if one could simply solderpaste the entire board and make it. i'm a bit new to solderpaste...i'm usually a thru-hole guy. i was wondering if anyone has tried to make the entire board with solderpaste. any thoughts?

Andrew02E
 
Posts: 5
Joined: Thu Mar 15, 2007 5:01 pm

Post by Andrew02E »

Solder pasting the entire board, probably not a good idea. You'd probably end up with a lot of solder bridging from excess amounts of solder.
You could try using a syringe and applying paste only on the areas you need it. That's usually how I work with fine pitch SMT parts... apply flux, apply solder paste with a syringe, and hit each pad with a fine tip soldering iron under a magnifying glass, starting on the lead and dragging the iron away down the pad... the surrounding paste will liquify and pull onto the lead and pad with a very high rate of success.
That's just my way though. There's lots of ways to do it, just look on Google and you'll find lots.

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