I have soldered the wires directly to "strips" of copper.
(like a edge connector)
Holes would be tiny, or offset, and the wire is not solid and hard to
insert.
The strip pads are possible with a small enough pitch (same as cable)
You should add some mech. restraint, maybe glue.
worked fine for me.
ST
On Fri, 02 Apr 2004 23:01:08 -0000, Phil <phil1960us@...> wrote:
> I've seen this done and was wondering if anyone has some words of
> wisdom as to how to do it. Basically, I want to attach a ribbon
> cable directly to a PCB. The non-PCB end will use an IDC connector
> but I can't afford the size of header pins on the PCB. I've seen
> several LCDs that have 50 mil spacing hole/pads. The insulation was
> stripped of the ribbon cable, the wires inserted in the holes and
> soldered. The solder is about 1 mm high. I need 2-3 mm clearance so
> that works for me. Clearance on the bottom is a little less a
> problem but even SMT connectors are too big.
>
> Are there special tools for this? It sure looks tricky to do. What
> size holes/pads?
>
> Phil
>
>
>
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