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March 2006

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Subject:
From:
"Schaefer, Chris" <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Schaefer, Chris
Date:
Mon, 13 Mar 2006 10:27:50 -0600
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Hello all,

I am here and I have survived... I have been blessed with a positive answer - that being YES! We spent a wonderful 2 days at an 130 year old mansion being pampered to death and eating tasty food to boot! The night went perfectly with a 6 course meal with the 3rd course being served in a vintage serving tray with  the ring wrapped around a white tulip by our own personal 1800's vintage server. This is when the crying started and I started my spiel on one knee. After the crying had ceased (for 3.68 minutes) and asked her for her hand in life she said yes. So thank you all for your words and now I am considered a fiancé as well as a future husband to a wonderful young woman.

Thank you very much - it is nice to know that you all are not only an excellent resource for the industry, but for life as well. God Bless...

As far as George's concerns - I have similar ones when I started the investigation into this fluid. I have requested ALL quality documentation from this manufacture as well as all test data (long and short) to aide me in the qualification of the material into our processes. The requests were made in November of 05 and I have yet to receive anything, even after a second request. So maybe they just don't have the information, have the information but it is inadequate, or forgot all about my requests altogether.

So where does the oxidized material reside within the solder - these things do not just up and disappear. If they are broken down but not out, then are they suspended somehow so they do not come into contact with the CCA's metallurgy during soldering (unlikely) or are these "byproducts" now part of the solder thus part of the solder joints on the CCA?

Don't know... I'm sure that some of the metallurgy experts within these rooms might better answer these questions.

CAS

-----Original Message-----
From: TechNet [mailto:[log in to unmask]]On Behalf Of George Carroll
Sent: Monday, March 13, 2006 10:03 AM
To: [log in to unmask]
Subject: Re: [TN] Solder Surfactants in the solder pot


First off, I hope all went well for Mr. Schaefer last weekend and hope to hear a positve verdict.

I got to thinking last weekend (dangerous and smokey) and having seen the material at APEX and observed the dross and surface tension reduction, I was impressed. BUT, what are the breakdown or oxidation byproducts and can there be any trace incorporation of this liquid organic into the molten solder itself.  If it is, does this tend to create a compressive stress and facilitate the generation of whiskers?  I would tend to think there would be no miscibility at all but i would like the thoughts of more metallurgically educated minds than mine. 

George 
State of Franklin

-----Original Message-----
From: TechNet [mailto:[log in to unmask]]On Behalf Of Chris Schaefer
Sent: Friday, March 10, 2006 10:27 AM
To: [log in to unmask]
Subject: [TN] Solder Surfactants in the solder pot


Hello all,

Has anyone within these walls used the newer flavors of solder surfactants
or is considering using them in their solder pots for wave? Since the cost
of Lead Free solder is so high and the dross production will be
significantly greater, we have been considering the use of this material to
reduce dross production thus reducing costs. There is a brand name called
MS2 technologies which is distributed through or made by PK Metals. There
is a material for Pb free soldering and Pb soldering depending on what you
are using. I have ordered some of this liquid material to determine the
effect it has on dross production and other components of flow soldering
(i.e. joint integrity, affects on the metals inside the solder pot,
increased or decreased wetting ability, and quite a few more components).

So if anyone has some insight into the new solder surfactants, I would
appreciate you help and guidance.

Thank You in advance and hope you all have a great weekend. I know I will
(maybe... hmmmm!) because I am proposing to my girlfriend this weekend -
hopefully she say's yes - I need all of you prayers ha ha! Chow!

Chris Schaefer
Suntron Corporation
Process Engineer
540 N. Rogers Road
Olathe, Kansas 66062
913.393.5878
[log in to unmask]

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