This is a recent development, which we are
intending to offer shortly. The finish is a conductive organic coating
with a thin electroless Tin topcoat. The organic section acts as a
barrier to stop the intermetallics forming between the copper and tin.
It is flat, has long term solderability and also looks like a good
option to comply with the European directive banning the use of lead in
our industry.
Organic metal is claimed to have a shelf life approaching that of the
traditional HASL PCB
Its workings are quite complicated to understand, for more
information follow the link below to the Ormecon site.
http://www.ormecon.de/
Other related pages on the same site are :-
http://www.ormecon.de/Products/PAni/ipc_98-en.html
http://www.ormecon.de/News/orgmetal.en.html
