[Fwd: HF/BOE based chemicals for our trials]

Mary Tang mtang at stanford.edu
Wed Mar 17 15:56:04 PDT 2010

And which I guess is here.

This can be disposed of as usual in the HF drain at wbgeneral or 
wbgaas.  Although the major component of Sachem is listed as 
proprietary, it is evidently tetrabutyl phosphonium hydroxide which is 
commonly used in selective etch mixtures and can be disposed of through 
normal means.  The only concern I have is if there's enough space in the 
passthrough -- will check with Uli.


-------- Original Message --------
Subject: 	HF/BOE based chemicals for our trials
Date: 	Wed, 17 Mar 2010 15:40:06 -0700
From: 	Erhan Ata <erhanata at fortemedia.com>
To: 	'Mary Tang' <mtang at stanford.edu>, <mahnaz at snf.stanford.edu>
CC: 	<dcala at snf.stanford.edu>

Hi Mary, Mahnaz and David,


Attached are MSDS for the custom chemical that we've ordered from Sachem 
(SE-1140). Apparently they have shipped it earlier than we asked for and 
had already been delivered to SNF. There should be two 1 gallon containers.


We also would like to order another chemical, known as *Silox Vapox III* 
 from Transene, (http://www.transene.com/sio2.html#silox). We have not 
ordered it yet but I would like to order *one quart* this week and we 
should receive next week if that's OK.

I also attached an MSDS for Silox Vapox.

We plan to use WBGAAS, or WBGENERAL and should need the chemicals for 3 
months or less (tentatively), depending on the results we get, we may 
give up using them earlier or ask for extension.


Please let me know if I need to provide further info.




Erhan Ata

Fortemedia, Inc.


Cell: (650) 224 7894



Mary X. Tang, Ph.D.
Stanford Nanofabrication Facility
CIS Room 136, Mail Code 4070
Stanford, CA  94305
mtang at stanford.edu

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