7 Jun
2006
7 Jun
'06
12:37 a.m.
Don Y <dgy at dakotacom.net> wrote:
Brent Hilpert wrote:
"Multiwire". I saw it used for very high-density logic in CAT scanner
backprojectors.
It was capable of very high packing densities with IC's, much more than
conventional 2-layer PCB's, because there was no 2-layer limit as to
how many wires could cross over each other.
Tim.
There was another technique for making circuit
boards in the 70s: a
programmed/automated machine moved over the initially bare board and laid down
a fine wire from a spool to form the circuits. I think the wire stuck to the
Yes. *Very* fine wire. It "looked" like magnet wire.
It was really cool because the wires would crossover each other
at will (insulated with lacquer?). So, you had to learn that
I think the economics were such that it was too
slow for large production
runs, but was suitable for prototypes and small production runs of larger,
more-complex boards. Last example I saw was a disk-controller for a TI-990
mini circa 1980.
I saw it used in a little (explosion proof!) ATE controller for
flight line diagnostics (military). Perfect application as you
had very dense/complex boards and very limited "production".
> Anybody remember the name for the technique?