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Subject:	Re: BOARD SOLDERABILITY
From:	Bev Christian <[log in to unmask]>
Reply To:	TechNet E-Mail Forum <[log in to unmask]>, Bev Christian <[log in to unmask]>
Date:	Thu, 10 Dec 2009 13:59:05 -0500
Content-Type:	text/plain
Parts/Attachments:	text/plain (48 lines)

Lee,
Yes, EDTA, BUT can you be sure you have got it all off of your board,
especially from the solder mask?
Bev
RIM

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Lee Whiteman
Sent: Thursday, December 10, 2009 1:54 PM
To: [log in to unmask]
Subject: [TN] BOARD SOLDERABILITY

One of my colleagues has a HASL finished board, that sat in our
stockroom for ~ 10 years, and of course he want to use them (EOY
Billing).

Ran the board through wave soldering, and it did not solder at all. Good
news was that the board was not damaged by the heat - it just was not
solderable. I do not want to use a more active flux since it will be
difficult to clean.

Are there any solutions / processes that can restore board
solderability?

Thanks in advance.

Lee Whiteman, PMP
Senior Member Engineering Staff
L-3 Communications East
Telephone: (856) 338-3508
FAX: (856) 338-2906
E-Mail: [log in to unmask]



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