From jwc at snf.stanford.edu Wed Nov 4 17:42:05 2009 From: jwc at snf.stanford.edu (jwc at snf.stanford.edu) Date: Wed, 4 Nov 2009 17:42:05 -0800 Subject: Problem raith SNF 2009-11-04 17:42:04: Laser Stage frequency Lock problems surfacing Message-ID: It was observed this evening that the Laser Interferometer Stage Laser Source has become unstable and is having great challenges maintaining frequency locked mode status. This likely is due to our laser power falling below threshold either due to the end of the Life of this Laser module or more likely due to a problem or change in the Power supply voltage output (<5 VDC) I have called RAITH USA inc field service and left a message and will attempt to call RAITH GmbH when they arrive at work in a few hours to see if I can expedite schematics and a new Laser Source ASAP. Stay tuned for updates on this status tomorrow by Noon. James From jwc at snf.stanford.edu Thu Nov 5 11:52:35 2009 From: jwc at snf.stanford.edu (jwc at snf.stanford.edu) Date: Thu, 5 Nov 2009 11:52:35 -0800 Subject: Shutdown raith SNF 2009-11-05 11:52:34: laser doe not mode lock Message-ID: Raith field service will arrive shortly to continue troubleshooting. Replacement modules are queued at the airport in NY for shipment overnight From jwc at snf.stanford.edu Thu Nov 5 17:39:12 2009 From: jwc at snf.stanford.edu (jwc at snf.stanford.edu) Date: Thu, 5 Nov 2009 17:39:12 -0800 Subject: Shutdown raith SNF 2009-11-05 11:52:34: laser doe not mode lock Message-ID: parts on order From jwc at snf.stanford.edu Thu Nov 5 17:39:42 2009 From: jwc at snf.stanford.edu (jwc at snf.stanford.edu) Date: Thu, 5 Nov 2009 17:39:42 -0800 Subject: Problem raith SNF 2009-11-05 17:39:42: OK to use but do not expect a laser stage or good stitching Message-ID: Coders only as the laser is off line From jwc at snf.stanford.edu Fri Nov 6 10:10:38 2009 From: jwc at snf.stanford.edu (jwc at snf.stanford.edu) Date: Fri, 6 Nov 2009 10:10:38 -0800 Subject: Comment raith SNF 2009-11-06 10:10:38: Laser tube shipping from Germany -- Tuesday or Wed arrival Message-ID: Raith GmbH is expediting a replacement laser tube for our Laser interferometer Stage (LIS) iot should clear customs late Monday or early Tuesday and we will install, align, and test ASAP after recieving it here at Stanford. Users will have acess to the coder functions of the stage only during this period. Thank you for your support! James From jwc at snf.stanford.edu Fri Nov 6 10:10:46 2009 From: jwc at snf.stanford.edu (jwc at snf.stanford.edu) Date: Fri, 6 Nov 2009 10:10:46 -0800 Subject: Comment raith SNF 2009-10-07 09:57:22: cleared a load lock error with phone support Message-ID: From jwc at snf.stanford.edu Tue Nov 10 14:32:55 2009 From: jwc at snf.stanford.edu (jwc at snf.stanford.edu) Date: Tue, 10 Nov 2009 14:32:55 -0800 Subject: Shutdown raith SNF 2009-11-10 14:32:54: Loss of X Motor control and Motor Message-ID: For Unknown reason we have lost functionality and control of the X motor in the Laser Interferometer Stage. A new motor was ordered late last evening from East Coast and it will arrive Wednesday morning. I will need to calibrate and requalify the system in the afternoon before releasing the tool for Users. Thank you for your understanding. James From jwc at snf.stanford.edu Wed Nov 11 16:26:47 2009 From: jwc at snf.stanford.edu (jwc at snf.stanford.edu) Date: Wed, 11 Nov 2009 16:26:47 -0800 Subject: Shutdown raith SNF 2009-11-10 14:32:54: Loss of X Motor control and Motor Message-ID: resolved with new laser and X motor control From jwc at snf.stanford.edu Wed Nov 11 16:28:59 2009 From: jwc at snf.stanford.edu (jwc at snf.stanford.edu) Date: Wed, 11 Nov 2009 16:28:59 -0800 Subject: Problem raith SNF 2009-11-04 17:42:04: Laser Stage frequency Lock problems surfacing Message-ID: From jwc at snf.stanford.edu Wed Nov 11 16:29:04 2009 From: jwc at snf.stanford.edu (jwc at snf.stanford.edu) Date: Wed, 11 Nov 2009 16:29:04 -0800 Subject: Problem raith SNF 2009-11-05 17:39:42: OK to use but do not expect a laser stage or good stitching Message-ID: From jwc at snf.stanford.edu Wed Nov 11 16:29:09 2009 From: jwc at snf.stanford.edu (jwc at snf.stanford.edu) Date: Wed, 11 Nov 2009 16:29:09 -0800 Subject: Comment raith SNF 2009-11-06 10:10:38: Laser tube shipping from Germany -- Tuesday or Wed arrival Message-ID: From jwc at snf.stanford.edu Wed Nov 18 15:05:50 2009 From: jwc at snf.stanford.edu (jwc at snf.stanford.edu) Date: Wed, 18 Nov 2009 15:05:50 -0800 Subject: Comment raith SNF 2009-11-18 15:05:49: excessive vibration evident at High Mag -- readjusted isostats Message-ID: It was noted that excessive vibration was evident in RAITH SEM imaging during focusing operations. Check the gimbal vibration isolation isostats and found one gimbal not floating. Checked N2 lines for leaks -- none Checked for clogs -- none equal pressure -- but only 30 psi delivered to gimbals -- which is under float specification. Checked supply pressure and found reduced to only 30 psi!!! Not good. Adjusted upwards to 50 psi float level and increased by additional 5 psi for a total pressure to float platform properly of 55 - 57 psi. Vibration much reduced albeit we are impacted by crane operations across the street about 100 m from this location. RF splash on motor operations evident on every crane lift. temporary installation while they place equipt. at nanocenter JWC From fanpy at snf.stanford.edu Mon Nov 23 22:02:24 2009 From: fanpy at snf.stanford.edu (fanpy at snf.stanford.edu) Date: Mon, 23 Nov 2009 22:02:24 -0800 Subject: Comment raith SNF 2009-11-23 22:02:23: UV coordinates Message-ID: After adjusting UVW, the UV numbers are jumped to some unreasonably large numbers and when not moving the beam, the UV numbers are not stable (though XYZ numbers are stable). Not able to do WF alignment. After restarting the program, it looked normal again, but did not have enough time to do exposure. From kcbalram at snf.stanford.edu Thu Nov 26 15:28:01 2009 From: kcbalram at snf.stanford.edu (kcbalram at snf.stanford.edu) Date: Thu, 26 Nov 2009 15:28:01 -0800 Subject: Comment raith SNF 2009-11-26 15:28:01: Raith Mouse needs new batteries Message-ID: From lyjiao at snf.stanford.edu Sat Nov 28 13:04:46 2009 From: lyjiao at snf.stanford.edu (lyjiao at snf.stanford.edu) Date: Sat, 28 Nov 2009 13:04:46 -0800 Subject: Comment raith SNF 2009-11-28 13:04:45: Raith Mouse run out of power Message-ID: Connected a wired Mouse to the computer.