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July 2009

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Subject:
From:
"Whittaker, Dewey (EHCOE)" <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Whittaker, Dewey (EHCOE)
Date:
Wed, 29 Jul 2009 07:57:53 -0700
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Now I know what Doug meant when he said he liked the movie better (so
much for his celluloid-free diet). Did this originate with his initial
confusion between Cliff Notes and Cliff Bars?
Dewey

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of David D. Hillman
Sent: Wednesday, July 29, 2009 5:08 AM
To: [log in to unmask]
Subject: Re: [TN] FORMULA FOR DETERMINING GOLD PERCENTAGE IN A SOLDER
JOINT

Hi Tom - Doug Pauls and I are fortunate enough to have a huge (50 Gbite 
and growing) technical article library to fall back on ( if I could just

teach Doug how to use the technical publications instead of eating
them!). 
I recommend you try looking in the closest  "big" University library as 
they typically have copies of publications you can purchase for 
inexpensive prices. I also use the Linda Hall Library in Kansas City for

getting some technical references. Internet access and digital storage
has 
made getting technical publications soo much easier. Good Luck.

Dave



"Gervascio, Thomas L" <[log in to unmask]> 
07/28/2009 05:42 PM

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

Subject
RE: [TN] FORMULA FOR DETERMINING GOLD PERCENTAGE IN A SOLDER JOINT






How could I get a copy of it? I thought EP&P was out of print..

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of David D. Hillman
Sent: Tuesday, July 28, 2009 10:01 AM
To: [log in to unmask]
Subject: Re: [TN] FORMULA FOR DETERMINING GOLD PERCENTAGE IN A SOLDER
JOINT

Hi Jon - the folks from Lockheed published a very good article on the 
impact of gold on solder joints including the calculations/material 
parameters/graphs that would be useful to you. Pull a copy of this 
article: "Effects of Gold Diffusion on a Near Eutectic Solder Joint", S.

Enwright, Electronic Packaging & Production, June 1998, pp 68-72. Good 
Luck.

Dave Hillman
Rockwell Collins
[log in to unmask]




"Roberts, Jon (SA-1)" <[log in to unmask]> 
Sent by: TechNet <[log in to unmask]>
07/28/2009 07:53 AM
Please respond to
TechNet E-Mail Forum <[log in to unmask]>; Please respond to
"Roberts, Jon (SA-1)" <[log in to unmask]>


To
[log in to unmask]
cc

Subject
[TN] FORMULA FOR DETERMINING GOLD PERCENTAGE IN A SOLDER JOINT






Does anyone have or know where to find the formula for determining the
amount of percentage of gold in a SMT solder joint?  Appreciate any
help, Jon


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