TECHNET Archives

1996

TechNet@IPC.ORG

Options: Use Monospaced Font
Show Text Part by Default
Show All Mail Headers

Message: [<< First] [< Prev] [Next >] [Last >>]
Topic: [<< First] [< Prev] [Next >] [Last >>]
Author: [<< First] [< Prev] [Next >] [Last >>]

Print Reply
Subject:
From:
Date:
Wed, 21 Aug 96 10:45:54 PST
Content-Type:
text/plain
Parts/Attachments:
text/plain (40 lines)
     Have you made any changes in your processing (scrubbing?) prior to 
     photoresist?  Very small surface imperfections out of electroless can 
     be greatly amplified by electroplate.


______________________________ Reply Separator _________________________________
Subject: Copper Pattern Plating Nodgles
Author:  [log in to unmask] at corp
Date:    8/20/96 6:13 PM


I am experienceing a fine dusting of nodgles that show up anywhere on the 
circuits especially on ground plane areas. The nodgle is dome shaped, higher 
than the surrounding area and very spherical in shape. Bright acid copper, 
everything in spec.I have eliminated deburr, resist (as I see it on panel 
plate also only with much less frequency of occurance).Not a pit from air 
inpengment a dome. Suspect a fungus in the brightener ???
     
Wondering if anyone else has seen anything similiar
     
Thanks
Wm.M.
     
*************************************************************************** 
* TechNet mail list is provided as a service by IPC using SmartList v3.05 * 
*************************************************************************** 
* To unsubscribe from this list at any time, send a message to:           * 
* [log in to unmask] with <subject: unsubscribe> and no text.        * 
***************************************************************************
     

***************************************************************************
* TechNet mail list is provided as a service by IPC using SmartList v3.05 *
***************************************************************************
* To unsubscribe from this list at any time, send a message to:           *
* [log in to unmask] with <subject: unsubscribe> and no text.        *
***************************************************************************



ATOM RSS1 RSS2