Why would you want to scrap them? If it is a matter of it already being
assembled might you nto use an aggressive wave solder flux?
What is the visual color condition of the through holes?
John Burke
(408) 515 4992
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Leland Woodall
Sent: Friday, August 10, 2007 3:16 PM
To: [log in to unmask]
Subject: Re: [TN] OSP Processing Recommendations
Richard and John,
At what point would you consider scrapping double sided assemblies that
hadn't yet made it to the wave process (or would that have to involve a
lot of experimentation in order to determine)?
Leland
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Todd, Richard
Sent: Friday, August 10, 2007 5:56 PM
To: [log in to unmask]
Subject: Re: [TN] OSP Processing Recommendations
Wow, John. I would love to use those criteria. Realistically (for us,
at least), we have found through experimentation that no more than 10
days between the 2nd reflow cycle and wave soldering yields acceptable
quality. Of course, the less time the better.
Regards,
Rick Todd
Senior Engineer
Panasonic Automotive Systems
(770) 515-1087 ext. 1087
(678) 458-2887 cell
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of John Burke
Sent: Friday, August 10, 2007 5:52 PM
To: [log in to unmask]
Subject: Re: [TN] OSP Processing Recommendations
I would say within 2 back to back 8 hour shift cycles (or 16 real time
hours) which is what I use as a rule of thumb for both OSP and silver.
John
John Burke
(408) 515 4992
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Leland Woodall
Sent: Friday, August 10, 2007 2:37 PM
To: [log in to unmask]
Subject: [TN] OSP Processing Recommendations
Everyone,
What is the maximum recommended time to complete all reflow and wave
soldering cycles on product that is coated with OSP?
I'm trying to establish a guideline for my facility and can't seem to
find a lot of related information on this subject.
Thanks in advance for your input!
Leland Woodall
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