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Forum index » Science and Technology » Chem » Coatings
polyvinylalcohol layer: what happens above 120'C
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Roge news
science forum beginner


Joined: 02 Jan 2006
Posts: 1

PostPosted: Mon Jan 02, 2006 3:21 pm    Post subject: polyvinylalcohol layer: what happens above 120'C Reply with quote

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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