Hello,
I am spin coating PDMS over a glass wafer with patterned metal. It is important to me that this PDMS surface is smooth. Is there an easy way to measure the surface roughness?
I was planning on using Bruker Contour GT-K Optical Optical Profilometer, but I have been informed that since the PDMS is transparent it will be difficulty to get accurate measurement.
Another suggestion was AFM, but I am not trained on it so it would take time for me to be able to get measurement.
Any other suggestions?
Thank you for the help,
David
Dear David,
Perhaps the easiest way how to obtain the surface roughness is AFM. Another possibility is to use stylus profilometer.
Good luck.
Thanks for the quick response.
Does a stylus profiliometer give a line measurement or a 2D surface?
Modern stylus profilometers (for example from KLA-Tencor) should give both.
Might be a silly idea, but if you are looking at nanoscale surface roughness you could try placing a drop of water on your PDMS and measuring the contact angle.
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