The problems we were seeing with the relays chattering will not harm
the system. The bug is gone for now -- may return --
The work around is to select coders in the stage control panel and
then attempt to go back to lasers.
I have ample spare boards and a complete stage unit coming in
tomorrow.
We wrote all day without any issues ...
James
On 11/14/2012 11:17 AM, chalabi wrote:
Dear James,
the problem was more severe last night. it was good for the
first write but for the second one it could not even settled
its position to start writing. so I was forced to manually
stop the movement to stop jiggling. I think it may cause some
harm for the system and make it worse if it left for itself.
it was a terrific night ...
Best,
Hamidreza
"James W. Conway" <jwc@snf.stanford.edu> wrote:
Good Morning Raith Community:
It was a very strange day yesterday with several unusual problems
on the tool. In the morning I arrive to find someone had turned
off the Laser interferometer Power supply using the front panel
switch.
Currently I have placed the system into yellow mode and users whom
do not need to write field to write field stitch their patterns
can likely successfully write on the system. You will perform
your operations under coder stage control and not on the laser
interferometer control. We encountered problems with the stage
control hardware evidenced by clicking noises of relays in the
unit after completing X-Y motions. This is an intermittent
problem and you may not encounter an problem during your run. I
had the system working and tested several times through the
evening last night only to have it resurface with the next Users
shortly after I left the lab.
Users are reminded that the Ebeam Lab is a restricted area and no
lab members other than qualified Users of our beamtools are to be
in the lab without an escort. You have my permission to confront
any User entering the lab for any reason and obtain their lab
member name and report them to me.
[For
full details you may click here.]
James Conway