http://www.stencilsunlimited.com/solder_products.php$16 for a syringe of leaded or no-lead. It came packed with a freezer
stay-cold pak, but UPS ground took 8 days to cross the continental divide.
Be sure to mention that and ask for shipping options.
Stir-fry boards in a skillet on the gas range. (Actually, no stirring. Just
let them sit.) Medium flame uncovered hits reflow in just over 3 minutes,
about right on profile. Cover it when the last bit of gray turns to silver,
count to ten then turn off the flame. Let sit for a minute before uncovering
to cool. Let it cool undisturbed until you can pick it up by hand. Over
cooking slightly is better than under cooking. I think it's safe to do it
this way; even big ceramic SMT caps, my biggest worry, survive this
treatment just fine.
Some of the guys are using plumber's solder paste to tin the board. An
improvement over Tinnit, which I'm using.
Electroplating is still the best way to tin. I don't think anyone here is
doing it. Read up on it at www.thinktink.com. I think I'll try it after
using up the rest of the transfer paper. The workflow is a better fit with
negative photo resist.
----- Original Message -----
From: "shollzc" <shollz@...>
To: <Homebrew_PCBs@yahoogroups.com>
Sent: Friday, December 02, 2005 3:42 PM
Subject: [Homebrew_PCBs] Solder Paste and Tinning Questions!
> I have been doing the TTS system from pulsar for a while now with
> great success, but now i want to start tinning and doing some surface
> mount.
>
> I have a few questions for you all, that i have searched on but found
> numerous different topics with no real answer..
>
> 1. Where is the best place to get some solder paste and a fine needle
> syringe for smt components. And do you thnk I should make a reflow
> oven or just use a hot air solder station to mount components.
>
> 2. As far as tinning goes, what seems to be the best bang for the
> buck? Tinnit, Cool-amp, or solder paste reflow. What kind of solder
> paste do you use for tinning and where do I get it? Also what do you
> reflow it with? Heat gun, or oven?
>
>
> Thanks for the help
> Craig
> http://www.scholleco.com/phpbb/
>
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