Hi all,

Could someone please recommend a selective copper etchant, preferably
available in the UK? Btw I am also using permalloy (NiFe) in my
structure, so would like to find something that doesnt degrade this
material.

I have read briefly about Transene's 49-1 and BTP copper etchants - if
anyone has experience with these, Id much appreciate if you could share.
Do they by any chance have a supplier in the UK?

Many thanks, regards,

--
Iskandar Samad
Cambridge University Engineering Dept
Trumpington St
Cambridge CB2 1PZ
United Kingdom

[email protected]

Tel: +44 1223 764205
Fax: +44 1223 332662