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From: labnetwork-bounces at mtl.mit.edu [mailto:labnetwork-bounces at mtl.mit.edu] On Behalf Of Volkan Ozguz
Sent: Thursday, September 30, 2010 1:37 AM
To: labnetwork at mtl.mit.edu
Subject: [labnetwork] PVC piping
Dear Colleagues,
There are some new classes of PVC piping (and related joining techniques) marketed for use in ultra pure water applications including 18 MOhm levels. Are there any users in our network who used similar piping materials? How do they compare to PVDF or PP piping materials? What are your assements about installation, serv...
Thanks for your help,
Volkan
--
Volkan ?zg?z
Sabanc? University
Nanotechnology Research and Application Center
Orhanl?, Tuzla, ?stanbul 34956
Office: 0 216 483 9880
Fax: 0 216 483 9550
Email: vozguz at sabanciuniv.edu<mailto:vozguz at sabanciuniv.edu>
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From kuhn1 at purdue.edu Thu Sep 30 16:16:03 2010
From: kuhn1 at purdue.edu (Kuhn, Jeffrey G)
Date: Thu, 30 Sep 2010 16:16:03 -0400
Subject: [labnetwork] PVC piping
In-Reply-To: <5863FB4055D90542A7A7DAE0CEF2ACB0060B734532@E2K7CCR1.netvigour.com>
References: <AANLkTimwTuD4FdmiWt1KkqsVc22jcj04ZXMjZ1w1SY0a@mail.gmail.com>
<5863FB4055D90542A7A7DAE0CEF2ACB0060B734532@E2K7CCR1.netvigour.com>
Message-ID: <D14ADF941D26CD4E9015A15C62B39556699CCE1177@VPEXCH06.purdue.lcl>
My initial concern was with organic compounds (TOC) leaching from the PVC pipe and cement, but it appears this new material has low extractables. The other concern I have is with the smoothness of the pipe joints. Any crevices or beads in the joint would invite bacteria growth.
I did not dig too deeply into the specifications, but the following link from one supplier may be of some use:
http://www.harvellxt.com/
It appears there is training required to acquire the skill set needed to properly use the system, not unlike with PVDF fusion.
I?d also be curious to see the cost difference between the two systems.
Jeff Kuhn
Facility Engineer
Birck Nanotechnology Center
Purdue University
1205 W. State St.
West Lafayette, IN 47907
Ph: (765) 496-8329
Fax: (765) 496-2018
From: labnetwork-bounces at mtl.mit.edu [mailto:labnetwork-bounces at mtl.mit.edu] On Behalf Of Abbie Gregg
Sent: Thursday, September 30, 2010 2:45 PM
To: Volkan Ozguz; labnetwork at mtl.mit.edu
Cc: Ciel Villawatkins; Mark Winter
Subject: Re: [labnetwork] PVC piping
We would be very interested in results on this. We have been using PVDF on the supply side and Polypro on the return side for most Nanolab construction in the last 10 years.
Abbie Gregg
President
Abbie Gregg, Inc.
1130 East University Drive, Suite 105
Tempe, Arizona 85281
Phone 480 446-8000 x 107
Cell 480-577-5083
FAX 480-446-8001
email agregg at abbiegregg.com<mailto:agregg at abbiegregg.com>
website www.abbiegregg.com<http://www.abbiegregg.com>
CONFIDENTIALITY NOTICE: All information contained in or attached to this email constitutes confidential information belonging to Abbie Gregg, Inc., its affiliates and subsidiaries and/or its clients. This email and any attachments are proprietary and/or confidential and are intended for business use of the addressee...
From: labnetwork-bounces at mtl.mit.edu [mailto:labnetwork-bounces at mtl.mit.edu] On Behalf Of Volkan Ozguz
Sent: Thursday, September 30, 2010 1:37 AM
To: labnetwork at mtl.mit.edu
Subject: [labnetwork] PVC piping
Dear Colleagues,
There are some new classes of PVC piping (and related joining techniques) marketed for use in ultra pure water applications including 18 MOhm levels. Are there any users in our network who used similar piping materials? How do they compare to PVDF or PP piping materials? What are your assements about installation, serv...
Thanks for your help,
Volkan
--
Volkan ?zg?z
Sabanc? University
Nanotechnology Research and Application Center
Orhanl?, Tuzla, ?stanbul 34956
Office: 0 216 483 9880
Fax: 0 216 483 9550
Email: vozguz at sabanciuniv.edu<mailto:vozguz at sabanciuniv.edu>
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From everly at usf.edu Mon Aug 16 13:37:05 2010
From: everly at usf.edu (Everly, Richard)
Date: Mon, 16 Aug 2010 13:37:05 -0400
Subject: [labnetwork] Help with Silicon on Sapphire
Message-ID: <DA25159AE3245C4F9094656F663E84D20906AB5ADF@USFMAIL2.forest.usf.edu>
I have researcher that wants to grow a thermal oxide on 6000Ang epi layer on sapphire substrate. I have no experience with this material and the documentation seems to be scarce. I don't want to burn up the substrate by doing something foolish as they very expensive. any help would be greatly appreciated!
1. is this material process compatible with standard silicon processes, can I use the same tube as I do my regular dry oxidation and not worry about contamination.
2. What heat-up and cool-down rates should I use, and are there any temp limits I need to be aware of? I've read that thermal expansion can be a problem.
3. Can I use the RCA clean process? I'm worried about the SC1 solution attacking the Sapphire.
Richard Everly
Cleanroom Engineer
Nanotechnology Research and Education Center (NREC)
University of South Florida
NREC, ENB118
4202 E. Fowler Ave.
Tampa, FL 33620
Office: 813-974-5365
Fax:??? 813-974-3610
?
From bob at eecs.berkeley.edu Mon Aug 16 13:53:14 2010
From: bob at eecs.berkeley.edu (Bob Hamilton)
Date: Mon, 16 Aug 2010 10:53:14 -0700
Subject: [labnetwork] Help with Silicon on Sapphire