Dear colleagues,

we are about to electroplate 20Fe80Ni layer onto our wafers. We have to
fullfill a very strict spec concearning the percentage of Fe in this layer.
Among other methods, we are going to use an EDX-analyser. But we lack a
calibration standard for 20Fe80Ni alloy.

Could anyone suggest a good and reliable supplier of such standards
(preferrably in Europe, since we will need it very soon)?

Many thanks in advance!

Best regards,

--
Denis Petrov