I would let him do it.
I do chemical plating and plating rework on occasion, as needed. I also
know of a few companies that do this as a standard benchtop production
process. You can buy plating kits and do it yourself, if you so desire.
I have plated gold, nickel, silver and copper buildup. If done properly,
it is just as "good" or reliable as the original bath. Check out
http://www.hunterproducts.com/

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Kevin Glidden
Sent: Tuesday, November 11, 2008 9:47 PM
To: [log in to unmask]
Subject: [TN] Repair to ImAg plating?

Hi everyone,

 

We have an issue with loss of plating adhesion on some ImAg finished
PCBs.
The affected area is small and consistent in location across the PCBs
with the defect.  All other areas seem to be ok when tested per a tape
test.  The PCB supplier is proposing to visit and "repair" them here at
our site.  I was not even aware plating could be repaired, let alone
away from a PCB fab shop without plating lines etc.  Is this even
possible?  I am very hesitant, as I very seriously doubt the control
and/or quality of the "repair"
process.  At the very least, how would thickness be controlled?  We
specify micro 5-12 inches in thickness per IPC-4553, and the overall PCB
is to meet
IPC-6012 Class 3.

 

Anyway, they described the process as follows:

 

I will send you the solution by Fedex in a small bottle. Once you have
received it, I will come to your facility and repair the boards.  I will
need a hot plate and Pyrex container to heat-up the solution to 120 F.
Do you have these two items? Otherwise I will bring them with me. I will
clean and repair the boards locally.  Once it is done, I will do the
tape test to make sure the adhesion of the silver is adequate.

 

My little voice is screaming "NOOOOOOOOOOOOOOOOOOOOOOO!!"

 

Thanks in advance,

Kevin


---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 15.0 To
unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or
(re-start) delivery of Technet send e-mail to [log in to unmask]: SET
Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the
posts: send e-mail to [log in to unmask]: SET Technet Digest Search the
archives of previous posts at: http://listserv.ipc.org/archives Please
visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for
additional information, or contact Keach Sasamori at [log in to unmask] or
847-615-7100 ext.2815
-----------------------------------------------------

---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 15.0
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet
To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL)
To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest
Search the archives of previous posts at: http://listserv.ipc.org/archives
Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815
-----------------------------------------------------