Hi Dewey - I am looking for lead free soldering process, no mixing, plated 
thru hole, thermal cycle reliability data. Lots of SMT data sets but not 
many on PTH.

Dave



"Whittaker, Dewey (EHCOE)" <[log in to unmask]> 
09/23/2010 03:53 PM

To
"TechNet E-Mail Forum" <[log in to unmask]>, <[log in to unmask]>
cc

Subject
RE: [TN] Leadfree Plated Thru Hole Thermal Cycle Reliability Paper Hunt






Dave,
Does that line ever work? Is this to include PTHs that have components
and were soldered by you or Doug?
Do you want Lead-free or eutectic as the final finish and reflowed in a
eutectic, mixed metallurgy or Lead-free processing medium?
IPC EXPO 2006 this was presented "Reliability of Partially Filled SAC305
Through-Hole Joints".
I am slowly putting a white paper together for an IPC Handbook for
Lead-free Assembly. Many papers so far but no organization or search
capability yet.
If you could be more specific I may have a few more right now.
Dewey


-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of David D. Hillman
Sent: Thursday, September 23, 2010 9:31 AM
To: [log in to unmask]
Subject: [TN] Leadfree Plated Thru Hole Thermal Cycle Reliability Paper
Hunt

Hi folks! I am on a fishing exposition: I am looking for plated thru
hole 
thermal cycle reliability reports/papers. I have a ton (literally) of 
surface mount technology investigations but we have just finished up a 
leadfree wave solder alloy thermal cycle solder joint integrity 
investigation and I am in search of published data sets so I can do a 
results comparison.  I do have the papers by C. Hamilton/Celestica which

are very good but I am in quest of additional report data sets. If you 
know of any published reports, please drop me an email. 

Thanks in advance. 

Dave Hillman
Rockwell Collins
[log in to unmask]

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