Hi Technetters.
We are looking at applying a single-sided covercoat (solder
mask) to a 12" web. The product is a flexible suspension. Normally
not an issue. The problem is that this application will occurr after the
polyimide etch (and plating), which means the web will have holes in it.
This makes the whole thing much more challenging. Oh yeah, one other
thing, the line is roll to roll. Thought that I'd throw that in there
too. We have discussed screen printing, slot die, spray coating, dip
coating, etc. Has anyone tried this before? I am looking for any
ideas people have to make this happen. Any possible contacts that you
might have would really be appreciated also.
Thanks,
Kirk