polyvinylalcohol layer: what happens above 120'C

Roge news · science forum beginner Joined: 02 Jan 2006 Posts: 1

I have spincoated a 800nm PVOH coating on a silicon wafer. PVOH in a water
solution.

The quality of my coating is not good enough: adhesion-type problems.

When I heat my silicon with PVOH coating to 120'C for 15 min in a convection
oven, quality is good.

Q: What happens physically - I know it is not the water/solvent from the
layer - has been tested.

Q:Why can this effect not be reached at lower temperatures? Any other way,
additives?

Thanks,
Roge.

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