Stephen,
What is the plated material?
Is it Teflon ? We saw such problems on Teflon caused by peeling off the
barrel.

Edward Szpruch
Eltek , Manager of Process Engineering
P.O.Box 159 ; 49101 Petah Tikva Israel
Tel  ++972 3 9395050 , Fax  ++972 3 9309581
e-mail   [log in to unmask]

> -----Original Message-----
> From: Stephen R. Gregory [SMTP:[log in to unmask]]
> Sent: ב ספטמבר 11 2000 18:52
> To:   [log in to unmask]
> Subject:      [TN] Nodules in barrel plating...
> 
> Hi ya'll!!
> 
> Got another picture for ya to look at for me. We've got some PCB's in
> receiving inspection that has these little nodules in plating inside all
> of
> the barrels. Go to:
> 
> http://www.driveway.com/share?sid=e25a88c4.8e904&name=Pictures
> 
> and look at Barrelplate.jpg to see what I mean. These are microwave PCB's
> and
> have almost all of the surface area on both sides covered with with solid
> metal planes, and no solder mask.
> 
> Is this a normal appearance? The plating inside the barrels look to be a
> much
> lighter color than the plating on the surface planes on the PCB...you can
> see
> that in the picture as well. I don't know what I'm looking at, maybe
> someone
> could help me. I'm being asked if this is okay...I don't know if it is or
> not. I'll try and take a better picture if I can...
> 
> Thanks!!
> 
> -Steve Gregory-
> 
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