[Noisebridge-discuss] eZ430 Chronos

[Christie Dudley]

Considered doing the toaster oven thing with solder paste?

Christie
_______
"We also briefly discussed having officers replaced by very small shell
scripts." -- Noisebridge meeting notes 2008-06-17

The outer bounds is only the beginning.
http://www.flickr.com/photos/genriel/sets/72157623376093724/


On Fri, Mar 19, 2010 at 10:01 PM, Mikolaj Habryn <dichro at rcpt.to> wrote:

> On Fri, Mar 19, 2010 at 12:32 PM, dpc <weasel at meer.net> wrote:
> > Mikolaj Habryn <dichro at rcpt.to> writes:
> >
> >> I also have vague ideas for smart-dust-style devices to build, but
> >> find the idea of soldering tiny 0.5mm pitch devices into
> >> quarter-inch-diameter enclosures faintly daunting, and would rather
> >> attempt it in company, preferably with beer.
> >
> > the beer doesn't really help :-)
> >
> > you're talking the pin pitch though? as long as the pins are exposed (as
> > opposed to tucked under the package) it isn't too hard to tack lines
> > in. the 'hard' part was making sure the lines were stress relieved
> > enough so that they didn't break off randomly.
>
> I think they are tucked underneath - "48 VQFN Exposed Pad".
> Accelerometer is similar, but only 8 pads - same pitch, though. Which
> is good in a sense, since I want to embed them inside a 00-gauge plug
> along with battery and vibrator/electrodes but bad for the soldering.
> Not too fussed about stress relief, since I figure on setting the
> entire thing into a resin matrix of some kind, although I'm not
> totally clear on how one does that without breaking fragile wiring.
>
> m.
>
> >
> > \p
> >
> > ---
> > Once the rockets are up, who cares where they come down -- That's not my
> > department. - Werner von Braun
> >
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