SU-8 and most other photoresists contains solvents which must be
uniformly driven out to achieve best results and hotplates are the
best way to do this.

PDMS doesn't contain such solvents so there shouldn't be any
difference. I've used both methods and have never observed a
difference.


On Mon, May 18, 2009 at 16:44, Giuseppe Tarabella
 wrote:
> Hi Maji,
>
> by my experience using a hotplate is better than an oven.
>
> Technical sheets suggest to use an hotplate even if the process can be done
> in oven too.
>
> For example for SU8 pre-curing I have tried to use an oven, but with bad
> results, while I am getting good by hotplate.
>
> Giuseppe Tarabella