From tberg at snf.stanford.edu Tue May 3 09:44:13 2011 From: tberg at snf.stanford.edu (tberg at snf.stanford.edu) Date: Tue, 3 May 2011 09:44:13 -0700 Subject: Comment sem4160 SNF 2011-05-03 09:44:12: FS is still tweeking on the SEM Message-ID: FS is still tweeking on the SEM. Hopefully it will be up today. Thanks for your patience. ted From rissman at snf.stanford.edu Wed May 4 15:15:33 2011 From: rissman at snf.stanford.edu (rissman at snf.stanford.edu) Date: Wed, 4 May 2011 15:15:33 -0700 Subject: Comment sem4160 SNF 2011-05-04 15:15:32: SEM status Message-ID: I attempted to look at 4 different samples without much luck. The column is still unstable at this point. It requires a flash of the tip every few minutes and right after flash the current drops down to ~ 4 uA and requires a flash again. Perhaps if the current were stable you could get good results. From tberg at snf.stanford.edu Fri May 6 07:59:27 2011 From: tberg at snf.stanford.edu (tberg at snf.stanford.edu) Date: Fri, 6 May 2011 07:59:27 -0700 Subject: Comment sem4160 SNF 2011-05-06 07:59:27: Update on SEM progress Message-ID: Yesterday the beam was still showing some instability, so we believe the column needs an extended bake. The plan is to do a turbo bake during the day today, followed by a long conventional bake over the weekend. Hopefully by Monday, the beam will be stable. From jwc at snf.stanford.edu Mon May 9 15:45:59 2011 From: jwc at snf.stanford.edu (jwc at snf.stanford.edu) Date: Mon, 9 May 2011 15:45:59 -0700 Subject: Shutdown sem4160 SNF 2011-04-28 07:23:40: Tip change Message-ID: From jwc at snf.stanford.edu Mon May 9 15:47:27 2011 From: jwc at snf.stanford.edu (jwc at snf.stanford.edu) Date: Mon, 9 May 2011 15:47:27 -0700 Subject: Comment sem4160 SNF 2011-05-09 15:47:26: PM completed but still with some reduce resolution Message-ID: The PM routine was completed but we are still not seing the resolution on the tool that this service was expected to resolve. We will run further test this week and we ask Users to report their results as well as give us your feedback. Thank you, JWC From jwc at snf.stanford.edu Mon May 9 15:47:37 2011 From: jwc at snf.stanford.edu (jwc at snf.stanford.edu) Date: Mon, 9 May 2011 15:47:37 -0700 Subject: Comment sem4160 SNF 2011-04-23 11:22:23: SEM today Message-ID: From jwc at snf.stanford.edu Mon May 9 15:47:48 2011 From: jwc at snf.stanford.edu (jwc at snf.stanford.edu) Date: Mon, 9 May 2011 15:47:48 -0700 Subject: Comment sem4160 SNF 2011-05-03 09:44:12: FS is still tweeking on the SEM Message-ID: From jwc at snf.stanford.edu Mon May 9 15:47:55 2011 From: jwc at snf.stanford.edu (jwc at snf.stanford.edu) Date: Mon, 9 May 2011 15:47:55 -0700 Subject: Comment sem4160 SNF 2011-05-04 15:15:32: SEM status Message-ID: From jwc at snf.stanford.edu Tue May 10 10:17:55 2011 From: jwc at snf.stanford.edu (jwc at snf.stanford.edu) Date: Tue, 10 May 2011 10:17:55 -0700 Subject: Problem sem4160 SNF 2011-05-10 10:17:54: beam current instability and low resolution Message-ID: FE-GUN extraction current rapidly falls in operation Poor resolution at any acceleration voltage -- much worse than the state of the tool before the PM was performed. Possibly the column became contaminated during the PM? Several Users report unacceptable performance on this tool. Further measurements tomorrow. James Conway and Paul Rissman From tberg at snf.stanford.edu Tue May 10 11:56:43 2011 From: tberg at snf.stanford.edu (tberg at snf.stanford.edu) Date: Tue, 10 May 2011 11:56:43 -0700 Subject: Comment sem4160 SNF 2011-05-10 11:56:43: Only flash tip once Message-ID: While the tool is coming back to normal, only flash the tip once at the beginning of your session. If you flash again you will be starting from scratch. Just hit the on button again and it will restore extractiion. Field service says the resolution improves over time so be patient and please make comments regarding your session. FS is here and willing to work with you if you have problems while they are here From coop at snf.stanford.edu Tue May 10 21:49:53 2011 From: coop at snf.stanford.edu (coop at snf.stanford.edu) Date: Tue, 10 May 2011 21:49:53 -0700 Subject: Comment sem4160 SNF 2011-05-10 21:49:53: beam current still unstable Message-ID: Was able to focus better than has been possible for some time, but beam current still drops fairly quickly during sessions. From jwc at snf.stanford.edu Wed May 11 10:56:27 2011 From: jwc at snf.stanford.edu (jwc at snf.stanford.edu) Date: Wed, 11 May 2011 10:56:27 -0700 Subject: Problem sem4160 SNF 2011-05-10 10:17:54: beam current instability and low resolution Message-ID: clear -- releasing system for users for additonal evaluation. last changes improved resolution. measurements to follow... James From jwc at snf.stanford.edu Wed May 11 10:56:32 2011 From: jwc at snf.stanford.edu (jwc at snf.stanford.edu) Date: Wed, 11 May 2011 10:56:32 -0700 Subject: Comment sem4160 SNF 2011-05-10 21:49:53: beam current still unstable Message-ID: From jwc at snf.stanford.edu Wed May 11 10:56:40 2011 From: jwc at snf.stanford.edu (jwc at snf.stanford.edu) Date: Wed, 11 May 2011 10:56:40 -0700 Subject: Comment sem4160 SNF 2011-05-09 15:47:26: PM completed but still with some reduce resolution Message-ID: From jwc at snf.stanford.edu Wed May 11 10:56:55 2011 From: jwc at snf.stanford.edu (jwc at snf.stanford.edu) Date: Wed, 11 May 2011 10:56:55 -0700 Subject: Comment sem4160 SNF 2011-05-06 07:59:27: Update on SEM progress Message-ID: