Hello caveteursus,
14. October 2002, 04:18:23, you wrote:
c> Has anyone used the hydrogen peroxide plus hydrochloric acid to etch
c> PCB's?
Of course, I'm usually using lower concentration of HCl (cca 16-18%) + 30%
H2O2. The mixture is approximative, i.e. if the etching reaction is too
'bubbly' add a little bit of acid, and if it is too slow, add little more
H2O2.
For real work I'm using the CuCl3+HCl combination, as it is never going to
be thrown away (all excess of it I'm giving away to my colleges)
--
Best Regards,
Zoran
mailto:zasto@...
14. October 2002, 04:18:23, you wrote:
c> Has anyone used the hydrogen peroxide plus hydrochloric acid to etch
c> PCB's?
Of course, I'm usually using lower concentration of HCl (cca 16-18%) + 30%
H2O2. The mixture is approximative, i.e. if the etching reaction is too
'bubbly' add a little bit of acid, and if it is too slow, add little more
H2O2.
For real work I'm using the CuCl3+HCl combination, as it is never going to
be thrown away (all excess of it I'm giving away to my colleges)
--
Best Regards,
Zoran
mailto:zasto@...