finishing early -- beam blanking issues

Byoungil Lee bilee at stanford.edu
Wed May 28 05:21:11 PDT 2008


It's a problem caused by a switch in the controller box.
The switch called 'ebeam' should be up position, but sometimes it's 
mysteriously switched down...
It was okay until 3am today.

Byoungil

----- Original Message ----- 
From: "Salman Latif" <slatif at stanford.edu>
To: "Raith SNF Mailing list" <raith at snf.stanford.edu>
Sent: Wednesday, May 28, 2008 5:15 AM
Subject: finishing early -- beam blanking issues


> The beam blank button seemed to be in reverse mode. I could see the  SEM 
> image in the off mode, and vice versa. More importantly, the beam  would 
> not stay blanked during a move from one position to another  (whether you 
> turn the blanker on or off). I shut down both computers,  and after 
> starting up again, could not see the SEM image at all.
> 




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