[Fwd: SpecMat]

Ed Myers edmyers at stanford.edu
Wed Jun 23 15:25:28 PDT 2010


I don't think we have H2 in Argon.


At 02:29 PM 6/23/2010, Mary Tang wrote:
>Hello fellow SpecMat'ers --
>Here is a request (actually, two) from a UCSB student, soon to join the lab.
>-------- Original Message --------
>Subject: SpecMat
>Date: Wed, 23 Jun 2010 14:22:54 -0700
>From: Kaveh Milaninia <mailto:kavehm at ece.ucsb.edu><kavehm at ece.ucsb.edu>
>To: <mailto:mtang at snf.stanford.edu><mtang at snf.stanford.edu>
>It was very nice meeting you on Monday. I'm still waiting for my PI 
>to come back from a talk in order to sign the papers needed to get 
>access to the lab as well as the CIS grant. In the meantime I was 
>wondering if I could make a couple SpecMat requests.
>1. Acetone Vapor Clean:
>Materials: PMMA coated Silicon samples
>Process: A small 50 mL container is filled with approximately 20-30 
>mL of acetone and heated to 80C. The container itself is sealed with 
>the exception of a very small, 1-2 mm hole, in the lid to allow for 
>the escape of acetone vapor. Samples coated with a PMMA film are 
>placed on the hole with the PMMA side down to allow for the removal 
>of PMMA without excess capillary forces.
>2. Carbon Nanofilm Anneal
>Material: Graphene on Silicon samples
>Process: Silicon pieces with graphene on top are cleaned under an 
>atmosphere of hydrogen (4%) in argon at 300-400C to remove residual 
>resist or other organic contaminants present on graphene surfaces. 
>Argon is needed instead of nitrogen to ensure minimal oxygen in 
>presence of and prevent the doping of the graphene samples.
>Please let me know if any further information is required. Thanks.
>Mary X. Tang, Ph.D.
>Stanford Nanofabrication Facility
>CIS Room 136, Mail Code 4070
>Stanford, CA  94305
><mailto:mtang at stanford.edu>mtang at stanford.edu

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