From caner at stanford.edu  Thu Sep 10 09:19:12 2009
From: caner at stanford.edu (Caner Onal)
Date: Thu, 10 Sep 2009 09:19:12 -0700
Subject: amt free 12:30-14:00
Message-ID: <24271110-4EF9-4874-84BD-0B899527EE88@stanford.edu>

upstream equipment is down.


From shott at stanford.edu  Tue Sep 22 13:41:32 2009
From: shott at stanford.edu (John Shott)
Date: Tue, 22 Sep 2009 13:41:32 -0700
Subject: Freon 23 update ...
Message-ID: <4AB9367C.1060409@stanford.edu>

SNF Lab Members:

As you know, we unexpectedly ran out of Freon 23.  Elmer has found that 
we had a leak in the high-pressure vent valve that was largely 
responsible for draining the cylinder.  Because the output of that valve 
runs to a vented exhaust, it was tricky to detect.

As you may also be aware, our original replacement cylinder was 
scheduled for delivery on Friday.  David Cala has worked hard to 
identify an alternative source that has scheduled delivery for tomorrow 
(Wednesday).  While we don't yet know exactly when that cylinder will 
arrive tomorrow, we are confident that this will allow us to return 
these important tools to service in a much more timely fashion.

We try hard not to run out of gas without a spare on hand ... and 
apologize that it happened this time.

Thank you for your continued support,

John





From ben.jian at arrayedfiberoptics.com  Wed Sep 23 19:07:25 2009
From: ben.jian at arrayedfiberoptics.com (=?iso-8859-1?Q?ben.jian?=)
Date: Thu, 24 Sep 2009 02:07:25 +0000
Subject: =?iso-8859-1?B?UmU6IEZyZW9uIDIzIHVwZGF0ZSAuLi4=?=
Message-ID: <20090924020725.18279.qmail@server266.com>

Hi John,

I just did 30min etch using AMT Etcher with the new bottle of CHF3 gas (Freon 23).  My result shows that the thermal oxide etch rate is almost identical to (but slightly higher than) several days ago.  So it seems that the new CHF3 bottle is fine.

Regards.

Ben

  	-------Original Message-------
  From: John Shott
  Subject: Freon 23 update ...
  Sent: 22 Sep '09 20:41

  SNF Lab Members:

  As you know, we unexpectedly ran out of Freon 23. Elmer has found that
  we had a leak in the high-pressure vent valve that was largely
  responsible for draining the cylinder. Because the output of that valve
  runs to a vented exhaust, it was tricky to detect.

  As you may also be aware, our original replacement cylinder was
  scheduled for delivery on Friday. David Cala has worked hard to
  identify an alternative source that has scheduled delivery for tomorrow
  (Wednesday). While we don't yet know exactly when that cylinder will
  arrive tomorrow, we are confident that this will allow us to return
  these important tools to service in a much more timely fashion.

  We try hard not to run out of gas without a spare on hand ... and
  apologize that it happened this time.

  Thank you for your continued support,

  John