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<TITLE>Re: [sdiy] smt placement and soldering..</TITLE>
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bert.schiettecatte@esat.kuleuven.ac.be wrote:<BR>
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<BLOCKQUOTE><FONT SIZE="2"><FONT FACE="Arial">Hi all,</FONT></FONT> <BR>
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<FONT SIZE="2"><FONT FACE="Arial">Iım thinking about building a board with a lot of surface mount stuff, but Iım not sure how to do it without messing it up. I have a decent soldering iron (weller ws80) and very sharp small tips I was thinking about investing in a manual pick and place but maybe thatıs overkill. Anyone have any references on how to do surface mount prototypes without messing it up?</FONT></FONT> <BR>
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</FONT></FONT></BLOCKQUOTE>My last job I was removing and replacing 208 pin motorola chips. My advice for smt includes:<BR>
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don't drink coffee before you solder<BR>
sit down and clear your mind and relax your muscles<BR>
use as little solder as possible<BR>
flux<BR>
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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.<BR>
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It's good to have a dental pick as a helper tool.<BR>
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toby<BR>
-- <BR>
When we recognise a fault in others, we recognise a fault in ourselves.<BR>
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