asml particle on chuck
mahnaz at stanford.edu
Fri Jun 10 14:24:44 PDT 2011
I just want to remind every one of the followings....
We had a meeting on May 11th that Jason Parker helped to put it together
in order to discuss the issues of particle on the chuck for ASML tool.
The attendance was low but had been communicated to you all that if you
do not voice your concern you will strictly follow the outcome of the
Here one more time.
You are responsible to inspect 100% back of all the wafers after taking
them off the SVGcoaters.
Clean back of any wafers with EBR or resist residue with q tips and acetone.
Run ALL wafers through SRD (SPIN RINSE DRYER) in Teflon cassette with 3
black pins which is in black box on top of the SRD( labeled ASML only).
This is another reminder that " the particle on chuck " gets check
every day so we will take a group's privilege off if we see gross
so you are responsible to correct and guide the one that are not
following the procedure.
On a positive note, since every one is been more carful and following
the procedure we have not had particle on chuck sine May 13th.
So cleaning the back of wafers and the SRD rinse, it is seems to be
All these info are in the binder next to the tool and on the Wiki.
I like to take the opportunity and thank Uli and Lili for all the help
with measuring particles for different tool sets. *
Let us know of any issues and concern
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