Hello,
I am looking for a process to deposit a thick (50µm and more)
conformal coating of teflon (or any other high temp polymer) on a
polyimide substrate. The process should not raise the temperature of
the substrate above 100°C. CVD and PECVD is used for low-k teflon on
wafers but these guys work on thin films (below the µm). Any
sources...??
Can the very near surface get hotter than 100C?
Some PTFE and ETFE coatings can be flame sprayed, but
I do not know if a flame spray will give you the type of coating that
you need.
The very surface of your substrate will get hotter than 100 C, but the
vast majority will be much cooler.
I've applied Al2O3 to a styrofoam cup using a plasma gun and the cup
held up - it doesn't get much rougher than that ;-)
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