I've used the "silver" type off and on for over three years. No migration
problems or whiskering, as would be expected with silver in such small
amounts/thicknesses. However, after extended periods in less than ideal
temp/humidity conditions, some "tarnishing" appeared though solderability
remained good. I've used almost every flux available including QMS92 - no
cleans. All worked well. Doing some "brief case" experimenting with a sample
over three years old. Will let you know. Also, I'm over at Celestica at
720-6388 working for Dan Tolan and with Mark Vogel. Let's talk.

Earl Moon
----- Original Message -----
From: Carl Ray <[log in to unmask]>
To: <[log in to unmask]>
Sent: Saturday, September 11, 1999 4:41 AM
Subject: [TN] SMOBC Explain


> Hey Guys,
> Got a question. I have to start running some PCBs that have
Organo-Metallic
> Silver Immersion for plating. What are the pros and cons? Will I have to
use
> OA solder paste? Any information will be beneficial.
> Carl Ray
> Engineering  Supervisor
> 256-494-3247 Direct line
> 256-492-8997 ext. 272
> 256-494-0625 Fax
> [log in to unmask]
>
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