Thanks for all the suggestions. :-)

http://www.vellemanusa.com/us/enu/product/view/?id=351133

The green of the PCB is integral to the design so that 's why I wanted to be gentle.
Retinning the pads works (as suggested) but I was trying to follow the advice in
the supposed "solder experts" book on the subject. Doesn't always make it in the field.

And I also use the heck out of my wife's scanner for board documentation.
Really need to get one for my office before I scratch the glass bed on hers.


-----Original Message-----
>From: Peter Todd <pete@petertodd.ca>
>Sent: Feb 19, 2007 12:40 PM
>To: "Microcontroller discussion list - Public." <piclist@mit.edu>
>Subject: Re: [EE] soldering TQFP packages
>
>On Mon, Feb 19, 2007 at 09:04:09AM -0800, Marcel duchamp wrote:
> If you have a kit with a pcb that really needs scrubbing and it seems to 
>> take off the silk screen, take a digital photo first so you will have a 
>> record of the original board to help you placing components.
>
>
>Small suggestion... I'd *highly* recomend using a flatbed scanner for
>that instead of a digital camera. Taking scans of flat objects, like
>pcbs, works extremely well and gets you far more detail than any camera
>ever could. Scanners are also fairly cheap, even junk $50 ones are good
>enough for that kind of thing:
>
>http://petertodd.ca/art/16-2-intersector/imgs/pcb-front-full.jpg
>
>That photo was resized down from one about 4x bigger, all on a scanner I
>rescued from the garbage... 400dpi goes a *long* way.
>
>-- 
>http://www.petertodd.ca
>-- 
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