Any etchant that etches Au and Cr?
dwshin at stanford.edu
Sun Oct 20 16:19:01 PDT 2002
Dear Labmembers of SNF
I am currently looking for an isotropic etchant that etches Au and Cr
simultaneously without attacking SiO2. (Can Al-11 aluminum etchant do
If not, I would like to know
(1) whether or not cyantek CR-14 chromium etchant will attacks Au,
(2) whether or not transene TFA gold etchant will attack Cr.
(3) whether CR-14 and TFA will attack SiO2, Co, Fe, Ni.
- The use of plastic container makes me to suspect this.
FYI, CR-14 is acetic acid based etchant, TFA is potassium iodite based.
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