Epi2 update

[maurice stevens]

About 10 wafers have been processed through the system.  The haze that 
we saw on the first wafers  has cleared up (as we expected).  Hyun-Yong 
reports that he saw particles on all the wafers but it seems to become 
less as more wafers are run.

The susceptor height was adjusted by Elmer and AMAT field service to fix 
wafer handling issues...this may change the gas flow across the 
wafer...this may change your processes.  I suggest you run tests to re 
characterize your process before committing "good wafers".

-m


-- 
maurice at stanford.edu

Maurice Stevens
Stanford Nanofabrication Facility
CIS Room 142, Mail Code 4070
Stanford, CA  94305
P. (650)725-3660
F. (650)725.6278