Mornin' All!

Well it's picture time again. We are running some boards this that uses a
ceramic multi-layer capacitor from Nippon Chemi-Con. We've noticed that the
fillets on these capacitors look different than what we've noticed before.
See the picture at:

http://www.driveway.com/share?sid=e25a88c4.8e904&name=Pictures

You can see that the fillet seems to climb partially up the termination and
then abruptly stop. The termination also has a sort of tarnished look to it.
I went to Nippon Chemi-Con's web page and looked up the part, and they say
the cap termination can be specified to be either silver or nickel barrier.

I've always thought that most ceramic caps do have nickel barrier
terminations, but then they would be finished with a tin/lead plating. Do you
think that in this day of lead free (especially since Japan is really pushing
for lead free electronics) that there's nothing but nickel on the
terminations? And if that is the case, what would you think of this solder
joint?

Thanks!

-Steve Gregory-

##############################################################
TechNet Mail List provided as a free service by IPC using LISTSERV 1.8d
##############################################################
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 Keach Sasamori at [log in to unmask] or
847-509-9700 ext.5315
##############################################################