[sdiy] smt placement and soldering..

[Toby]

bert.schiettecatte at esat.kuleuven.ac.be wrote:

Hi all, 

 

I¹m thinking about building a board with a lot of surface mount stuff, but
I¹m not sure how to do it without messing it up. I have a decent soldering
iron (weller ws80) and very sharp small tips Š I was thinking about
investing in a manual pick and place but maybe that¹s overkill. Anyone have
any references on how to do surface mount prototypes without messing it up?

 
My last job I was removing and replacing 208 pin motorola chips.  My advice
for smt includes:


don't drink coffee before you solder
sit down and clear your mind and relax your muscles
use as little solder as possible
flux


If the chips you're soldering dont have more than 100 pins, it's really not
that difficult--just have a steady hand, line the chip up with the pads
extremely well, and have great attention to detail--it's easy to miss a pin.
I usually tack down the diagonal pins on every smt chip that I solder.

It's good to have a dental pick as a helper tool.


toby
-- 
When we recognise a fault in others, we recognise a fault in ourselves.

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