[rescue] Octane memory question

[Curtis H. Wilbar Jr.]

Yikes !  I think you have more patience than I... that looks like it must
have been a real B*#&%.

What do people generally recommend for an iron for surface mount work, mine
is a little too big making surface mount work clumsy and difficult (but not
impossible ... at least for simple parts).

I have two soldering stations... they are a bit old... one is a Weller
(the smaller one of the two), and one is an Ungar... The Ungar has two
irons... a smaller and a larger, but the heating element was smashed in the
smaller one.... anyone know of a good place to get affordable parts for
them ?  That smaller iron has a really nice tip that would work much better
for surface mount work....

-- Curt

>From: "Jeffrey Nonken" <jeff_work at nonken.net>
>To: The Rescue List <rescue at sunhelp.org>
>Subject: Re: [rescue] Octane memory question
>Date: Fri, 14 Mar 2003 11:29:22 -0500
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>On Fri, 14 Mar 2003 09:34:51 +0100, Bjorn Ramqvist <v53278 at g.haggve.se>
>wrote:
>
>> Surface mounted components could be a pain to deal with, but smallish
>> capacitors is somewhat easier since you only have two solderpoints. Try
>> do it with ease on hand, and keep the component and board (SIMM) from
>> getting TOO hot, otherwise you probably render it (completely) useless.
>> If you're unsure, try make someone else do it for you.
>
>
>I've been doing some surface-mount soldering recently. The closest I've
>gotten
>to "painful" is the SSOP devices, and mostly I had to watch out for bridges.
>
>Even that's not so bad as compared to sky-wiring one of those suckers. Next
>time I swear I'll buy an SOIC if I need to do that again. Had to fit a 28-pin
>part into an 18-pin socket, and it had to fit into the case.
>http://gallery.nonken.net/kludges/P3061173
>
>
>
>The caps aren't so bad, unless they're film caps, in which case you can fry
>'em too easily. Ceramic caps are damn near indestructable though.
>
>Here's the technique I use: Drop some liquid flux on the pads, put a bit of
>solder onto a fine-tipped iron(2), hold the part in place with a tweezer(1),
>and then touch the solder to the pad. If done right the solder will wick
>right
>onto the part almost instantly. I usually touch the iron to the space between
>the pad and the part, myself. Once you get one side soldered you can drop the
>tweezers and do the other side.
>
>
>(1) http://www.techni-tool.com/ search for 758TW454
>(2) http://www.techni-tool.com/ search for  821ST928
>
>That dual-iron soldering station is great for lifting surface-mount parts
>from
>a board.
>
>Probably any decent iron will do the job, though, for caps and resistors.
>It's
>really the ICs you need the fine tips for.
>
>---
>Never take acid and go driving with binoculars.
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