Arvind,

Transene makes fine etchants as do other companies.  I have also used 10% HNO3
90% H3PO4.

Brent

Arvind Balasubramanian wrote:

> Hello all,
>
>     Iam new to MEMS talk and its a pleasure to mail the group. I would like to
know if anyone had wet etched aluminum. If so, can you please help me in
choosing a etchant. I was looking at Transene Aluminum Etchant. Have anyone used
this etchant?