From jwc at snf.stanford.edu Thu Mar 8 13:03:39 2007 From: jwc at snf.stanford.edu (jwc at snf.stanford.edu) Date: Thu, 8 Mar 2007 13:03:39 -0800 Subject: Problem headway2 SNF 2007-03-08 13:03:39: spin speed control fluctuating Message-ID: The set speed on the headway spinner has been observed to be fluctuating. 1960 rpm set fluctuates between 1800 and 2100 rpm. Please check the rate control card. might have blown the transisters controling the spin speed. see me for my spin data... JWC From vilanova at snf.stanford.edu Thu Mar 8 15:22:58 2007 From: vilanova at snf.stanford.edu (vilanova at snf.stanford.edu) Date: Thu, 8 Mar 2007 15:22:58 -0800 Subject: Problem headway2 SNF 2007-03-08 13:03:39: spin speed control fluctuating Message-ID: I've Completed the Monthly PM to the system everything looks good nowm, I found a lot of resist in the motor and some wires disconnected, I cycled a wafers , ok to use. From jwc at snf.stanford.edu Fri Mar 9 15:34:16 2007 From: jwc at snf.stanford.edu (jwc at snf.stanford.edu) Date: Fri, 9 Mar 2007 15:34:16 -0800 Subject: Comment headway2 SNF 2007-02-04 15:52:30: cassetes dirty Message-ID: From giulia at snf.stanford.edu Tue Mar 13 12:03:41 2007 From: giulia at snf.stanford.edu (giulia at snf.stanford.edu) Date: Tue, 13 Mar 2007 12:03:41 -0700 Subject: Shutdown headway2 SNF 2007-03-13 12:03:40: the chuck doesn't spin Message-ID: it stopped after few seconds spinning at 3000rpm From uyoon at snf.stanford.edu Tue Mar 13 13:19:05 2007 From: uyoon at snf.stanford.edu (uyoon at snf.stanford.edu) Date: Tue, 13 Mar 2007 13:19:05 -0700 Subject: Problem headway2 SNF 2007-03-13 13:19:04: Message-ID: not spinning with wafer on From vilanova at snf.stanford.edu Tue Mar 13 15:12:58 2007 From: vilanova at snf.stanford.edu (vilanova at snf.stanford.edu) Date: Tue, 13 Mar 2007 15:12:58 -0700 Subject: Comment headway2 SNF 2007-03-13 15:12:58: Passdown Message-ID: I have replaced some parts to the spinner ( including the motor) but I still need some adjustments to do and also I need the right fuses, I will stop by fry's see if I can get some. Sorry ofr the inconvinience. From vilanova at snf.stanford.edu Wed Mar 14 14:47:54 2007 From: vilanova at snf.stanford.edu (vilanova at snf.stanford.edu) Date: Wed, 14 Mar 2007 14:47:54 -0700 Subject: Problem headway2 SNF 2007-03-13 13:19:04: Message-ID: The system is back on , I replaced the defective motor, cleaned all the vacuum lines checked Controller boards and replaced burned out fuses, PLEASE DO NOT USE ACETONE INSIDE THE SPINDLE! I found a lot of resist and acetone all over the connectors and wires it was hard to bring it alive because of the excess of resist that build up all over the motor assembly. Cycled wafers , ok to use. From vilanova at snf.stanford.edu Wed Mar 14 15:06:08 2007 From: vilanova at snf.stanford.edu (vilanova at snf.stanford.edu) Date: Wed, 14 Mar 2007 15:06:08 -0700 Subject: Comment headway2 SNF 2007-03-13 15:12:58: Passdown Message-ID: please read previous message. From vilanova at snf.stanford.edu Wed Mar 14 15:06:26 2007 From: vilanova at snf.stanford.edu (vilanova at snf.stanford.edu) Date: Wed, 14 Mar 2007 15:06:26 -0700 Subject: Shutdown headway2 SNF 2007-03-13 12:03:40: the chuck doesn't spin Message-ID: read previous message.