Re: SMD soldering?

Yeah... I just don't have the patience to fix it if I screw up a stunt  
like that, but for some reason I do have the patience to go pin at a  
time.

I found the demo video I really liked.  This is a solid introduction  
to doing this task with home gear.

http://www.youtube.com/watch?v=3NN7UGWYmBY

On Nov 1, 2009, at 8:32 AM, Scott wrote:

> Justin,
>
>> There are even some rather heroically brave demonstrations
> of doing it with a complete crap 5W iron that I would not attempt
> myself, where the guy wipes hot solder across all the pins on one side
> of a 48 pin package at once with a big blob then magically soaks it up
> with braid leaving a beautifully mounted device.
>
> Good point!
>
> This is pretty standard technique in the industry minus the solder  
> braid.
> The External Flux will keep the leads from bridging as long as you  
> prep
> properly and make sure you don’t have too much solder on your iron.
>
> -----Original Message-----
> From: owner-cbm-hackers@musoftware.de
> [mailto:owner-cbm-hackers@musoftware.de] On Behalf Of Justin
> Sent: Sunday, November 01, 2009 08:08
> To: cbm-hackers@musoftware.de
> Subject: Re: SMD soldering?
>
> Andre, there are also a lot of video guides to doing SMD soldering on
> YouTube that show various tricks for doing it with home-grade
> equipment.  There are even some rather heroically brave demonstrations
> of doing it with a complete crap 5W iron that I would not attempt
> myself, where the guy wipes hot solder across all the pins on one side
> of a 48 pin package at once with a big blob then magically soaks it up
> with braid leaving a beautifully mounted device.
>
> ...but there are some actually good guides that are worth watching.
>
> Another thing that can help a lot is a stereo microscope on an arm.
> You can sometimes find these on eBay fairly cheap.  I used an
> illuminated magnifying loop to solder wires onto the flash roms on my
> PS3 motherboard a couple years ago and it was headache inducing
> compared to using the microscope, so I recommend steering away from
> the graphic designer magnifying lamps.
>
> Justin
>
> On Nov 1, 2009, at 7:49 AM, André Fachat wrote:
>
>> Hi Scott,
>>
>> I'm soldering SMDs onto newly made PCBs (my own design, for some new
>> boards of my selfbuilt 6502...) The PCBs got solder resist (solder
>> mask, Lötstopplack) on them, I didn't trust myself enough to not use
>> it...
>>
>> I did solder the other ICs with 1.27mm pin distance (74xxx logic,
>> RAM) with a small soldering iron and small solder and it worked fine.
>> Even with traces running between the pins. I did use a magnifying
>> glass though... :-) (and some desoldering braid(?) to get
>> superfluous solder away).
>>
>> Only the other ICs I have are even smaller. I'm new to soldering
>> with flux, but it seems I'll have to give it a try.
>>
>> Thanks for your advice!
>> André
>
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