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Reply To: | TechNet E-Mail Forum. |
Date: | Wed, 28 Nov 2001 10:14:33 -0800 |
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----Thanks to everyone for the info , I was a weak on Cupric, (I spent
my life using mostly Ammonium and Ferric, amongst other more exotic
etches)
Any way one more simple or not so simple question :
Would you run a Cupric etcher @ 140g/l Cu and 5N HCl .?
Is It a correct assumption that somewhat lower N, and higher
copper would , provide faster etch rate. It just seems to me that
operating at an extreme N will basically just cost money in the form of
excess HCL usage , not to mention the wear and tear on the equipment,
and operators.,
Again thanks for the information!
Russell Smith
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