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April 2016

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Subject:
From:
Mike Fenner <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Mike Fenner <[log in to unmask]>
Date:
Tue, 5 Apr 2016 14:31:30 +0100
Content-Type:
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OK Maybe there is a difference in language here (British versus US English)
Irrespective of what IPC says
I would say in British English that Solder webbing is as already defined:
traces of solder left adhering to between pads area usually caused by
inadequate fluxing during wave soldering. If quite bad this can be quite
large areas. Less severe it used to be described as snails trails. Lesser
still could be just individual balls.
These are not the same as splatter which is solder balls ejected from say
through holes by escaping volatiles, or the same from some solder pastes in
surface mount or excess solder. 

So yes webbing could look the same as spatter. In either case you have
solder [possibly mobile] on the surface of the board which is not desirable,
but the cause and therefore cure would be different. Alternatively in the
case of small balls you could post solder clean the boards to remove them.

-- 
Regards 
 
Mike 


-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Ong Seet Leng
Sent: Tuesday, April 05, 2016 6:27 AM
To: [log in to unmask]
Subject: [TN] QUERIES

Afternoon Tech netters,

Apologize for asking the same question again. I may not have put it
correctly in my email send yesterday. Here it is: how do one tell the
difference between a solder splatter and solder webbing especially to
someone who has no knowledge of soldering anomalies. At a first glance, it
may look the same and cannot differentiate between them.

Please advise.

Regards,
Seet Leng

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