Here's a pretty good scan:

http://ipc-technet.groupsite.com/galleries/photo/117591

-Joe

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Kane, Joseph E (US SSA)
Sent: Thursday, March 25, 2010 11:34 AM
To: [log in to unmask]
Subject: Re: [TN] Orange Peel Termination Finish

Not blumpy exactly.  I don't have a soft copy of this document, so I'm trying to get a good scan.

-Joe 

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Phil Nutting
Sent: Thursday, March 25, 2010 11:14 AM
To: [log in to unmask]
Subject: Re: [TN] Orange Peel Termination Finish

Eeeeewwwww... That is ugly!

Phil

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Steve Gregory
Sent: Thursday, March 25, 2010 10:43 AM
To: [log in to unmask]
Subject: Re: [TN] Orange Peel Termination Finish

Does it look something like this?

http://stevezeva.homestead.com/files/Connector_Blumpies.jpg

Steve

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Kane, Joseph E (US SSA)
Sent: Thursday, March 25, 2010 9:38 AM
To: [log in to unmask]
Subject: [TN] Orange Peel Termination Finish

One of our guys brought over a counterfeit parts manual with a picture of some component leads exhibiting a rough orange-peel texture.  The picture was presented as evidence of re-tinning, which could indicate a counterfeit part.

The question is what could cause orange peel finish after hot solder dip?  We perform a lot of hot solder dip, both in-house and outside, and neither of us could remember the last time we saw anything like this, though it does look kind of familiar.

In the picture, we could see no obvious patches of de-wetting or non-wetting, just a uniform pebbly surface.  I don't think this would be caused by a solderability problem, or rapid cooling, could it be too little immersion time in the hot solder?  Could the solder in the pot be contaminated with something like copper, gold, or iron?

-Joe


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