Shutdown lampoly SNF 2008-07-03 17:43:35: Loads, but no processing
mtang at snf.stanford.edu
mtang at snf.stanford.edu
Thu Jul 3 17:43:35 PDT 2008
Can load and run wafers, but no processing occurs. A wafer loads up and... waits... and waits... Process recipe doesn't start. Is there a software toggle for this? (Did the PM involve cycling wafers to check handoff as suggested?)
The 307 MFC #8 zero offset errors are now gone (thank you!) But we still have the 376 (gap drive not fully initializing) errors when starting the machine after being idle.
Have a lot of the 252 and 253 turbo pump and 3 torr errors. But I think the turbo and the backing pumps -- and the loadlock pump too, for that matter, are OK. I wonder if the errors occur because of sequencing of loadlock and VAT and backing pump valves during wafer transfer -- because the normal sequencing during a regular recipe run isn't happening...
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