Re: Soldering bypass caps to QFP possible?

On Sun, 27 Jan 2008 09:40:42 -0800, Joerg
<notthisjoergsch@xxxxxxxxxxxxxxxxxxxxx> wrote:

Ben Jackson wrote:
On 2008-01-26, Joerg <notthisjoergsch@xxxxxxxxxxxxxxxxxxxxx> wrote:
Yes. I want to also try that with a 01005 cap since it would nicely
"ride" the gap. Some paste, some flux, then heat.

Better still, you might be able to put that on the pads instead of
balancing it on the pins.

You mentioned the distance to the nearest ground... Does this micro
have multiple grounds that are not tied under the chip? You might have
to tie them together if you don't want it to reset when there's a storm!


Yep, unfortunately that's the situation :-(

Going for the system solution now (shielding around the whole board). It
looks much easier to retrofit.

At GenRad, I always asked for (and got) a clear space for the
analog... and I did the layout. Digital guys have no concept of
ground or shielding or coupling :-(

...Jim Thompson
--
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