Monday, April 20, 2009

Re: Problem stsetch SNF 2009-04-17 16:25:46: particle on the chuck

Replaced the backside Helium cooling lip seal. Was flowing about 3.2 sccm of He during process before the seal change now flowing about 2.4 sccm.
Suggest keeping track of the He flow. If flow is > 3 sccm, need to put the system down (Problem).

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