I am designing a tool to be used for in-house product testing & development, part of the tool is a "probe" that is inserted between the end of an AA battery and the end of its holder (effectively a protrusion from one side of the PCB with copper top and bottom). The free space in these holders necessitates a thin PCB (I was thinking 0.8mm). I am concerned that since this tool will be handled a bit flexing of the PCB could cause bad solder joints or damage to tracks.
What would the best way of preventing this kind of damage, on a 0.8mm board do I need to be concerned about this kind of damage, my largest part is probably going to be an MSOP10.
My current thoughts on solutions are.
- Just glue the PCB to some kind of backing, this seems a bit of a dodgy solution
- Find a case of some variety, not much readily available in the form factor I am after and this is a small 1 off job.
- Use a screening can of similar size as a mechanical element, seems a reasonable solution but I have not used these components before and am not sure on their mechanical robustness.
- Solder bits of heavy wire along the edges of the board, once again seems a bit dodgy and not at all professional.
I believe most of these options would work but was hoping for some real world experience to point me in the right direction.