kicad-developers team mailing list archive

[Adam Wolf <adamwolf@xxxxxxxxxxxxxxxxxxxx>]

Look at this "z axis" conductive tape folks--if you clamp it, you can do
BGA!

https://www.sparkfun.com/products/12042

Adam Wolf
Wayne and Layne, LLC


On Fri, Nov 8, 2013 at 11:46 AM, Lorenzo Marcantonio <
l.marcantonio@xxxxxxxxxxxx> wrote:

> On Fri, Nov 08, 2013 at 10:03:02AM -0600, Dick Hollenbeck wrote:
>
> > There is conductive glue now.  Solder is not here to stay, necessarily.
>
> Tell me where they sell that glue. Now:D
>
> Questions: a) how do you align sides on consumer printers and b) how do
> you handle vias. Unless the process is strictly single face. Not many
> things can be done on single face these days...
>
> > >
> > > 2) How low (ohms/unit of length) is low resistance?
> >
> > How many of those traces would have resistors in them anyways?  Maybe
> trace width and
> > length becomes the new resistor.  Having a measurable resistance could
> be an advantage.
>
> That's established technology, actually... thick film hybrids:D
>
> > I just felt like climbing out of the box today.  When folks can print
> circuit boards and
> > and glue down parts, it changes the dynamic of big guy vs. little guy.
>  Except for patents.
>
> I doubt that would work for high currents and/or high frequencies. Also
> flex board (the most similar technology in use) has serious issue with
> cracking, especially for ceramics (IIRC Epcos has a capacitor line
> exactly for that kind of job).
>
> > > 3) I worked for a company that used silver ink for screen printing
> > > circuits on mylar and if memory serves it was really expensive.  Maybe
> > > the price has come down substantially.
>
> Shouldn't be *too* expensive... for prototypes and throwaways could beat
> a one off board etch.
>
> > > If it is reasonably priced, it would sure beat etching boards by hand
> > > using something like PCB fab in box.
>
> It would be at least faster...
>
> --
> Lorenzo Marcantonio
> Logos Srl
>
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