ALL:

Has anyone out there experimented with etches to see wether a more/less aggressive etch produces a change in the degree of galvanic etching?  It sounds to me like the main limitation in the mechanism of galvanic etching is going to be the diffusion of the oxidizer to the more noble metal.  Is this the case?? If there is a known rate determining step please let me know.  I may e able to use it to fight this effect.  Thanks.


Joe Aronson
Wet Process Engineer
JMSPI

##############################################################
TechNet Mail List provided as a free service by IPC using LISTSERV 1.8c
##############################################################
To subscribe/unsubscribe, send a message to [log in to unmask] with following text in
the body:
To subscribe:   SUBSCRIBE TECHNET <your full name>
To unsubscribe:   SIGNOFF TECHNET
##############################################################
Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional
information.
If you need assistance - contact Gayatri Sardeshpande at [log in to unmask] or
847-509-9700 ext.5365
##############################################################