Subject: Problem wbsilicide SNF 2011-07-22 17:04:19: New SC-1
From: latta@snf.stanford.edu
Date: Fri, 22 Jul 2011 17:04:20 -0700

Please be advised that the organic clean bath (4:1 sulfuric peroxide) has been permanently
changed to 5:1:1 H2O:H2O2;NH4OH.
The bath must be changed every four hours and the addition of H2O2 is allowed, much
the same as the 5:1:1 H2O;H2O2:HCl bath.  The bath temperature is 50C and the time remains
10 minutes.
There are several very good reasons for the change; 1) safety, 2) better quality clean,
3) sulfur contamination of nanowires and  4) lower chemical costs and on-site inventory.
Look for the forthcoming white paper on the wiki.  It will include references and results
of our tests.
Please direct any questions or concerns to SNF staff members.