Hello Aashish,

Both Brewer Science (www.brewerscience.com) and MicroChem
(wwww.microchem.com) have data sheets for PMMA on their websites that
provide film casting data.  Percent solids, molecular weight, solvent, and
spin speed all effect the final film thickness.  Hopefully the data sheets
from both companies will provide the information you need.

Mac

As a part of our project we need to spin coat a thin film of PMMA over
quartz block.
  Recently while searching on the internet i came across your reply to one
fellow on MEMS messaging regarding spin coating of PMMA.
  Is there  any empirical relationship between the film thickness (D), the
spin speed (w), the concentration of the polymer solution (C), and the
molecular weight of the polymer(M).
  Can anybody provide me with this relation and any references  suggested
for reading regarding spin coating of PMMA.
Your help will be heartly appreciated.

regards
Aashish singh
Project Associate
Department of Physics
Indian INstitute of Technology, Delhi
New Delhi
INDIA
--
Madison "Mac" Daily
New Business Development Manager
Specialty Materials Division
Brewer Science, Inc.
Telephone: (573) 364-0300
Fax: (573) 458-4372