I'm working a good deal of my time with MIL. I would turn it the other
way:  hand soldering should be used as little as possible! We have
certified operators for hand soldering objects that can't be machine
soldered, but most of the MIL equiments are machine soldered. How on
earth do you hand solder surface mount 0202 chip components? Or a BGA?
Or a superFPGA? etc... there must be a misunderstanding somewhere.
Furthermore, MIL and SPACE manufacturers buy commercial products more
and more, because the traditional 'MIL' qualified parts are too
expensive, and many a times not a bit better! Take an example. Our 8
wheel, 30 tons terrain radar vehicle. A lot is non-MIL classified parts,
air condition electronics, engine electronics, hydraulic/servo
computers, power supplies for the radar and a lot more. If all
electronics were bought with the requirement only 'MIL' listed parts,
the cost had  been such, that noone could buy the vehicle. 

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of [log in to unmask]
Sent: den 14 september 2007 01:49
To: [log in to unmask]
Subject: [TN] Military/NASA Spec Question

Folks:  Definitely can use some help!!!!!  I was told by a  customer
today that his workmanship and soldering standards are definitely high
reliability requirements that mandate ONLY hand soldering.  I went into
web  sites that I should have been able to find this spec however I
found  NOTHING!!!!  I am getting the impression that this customer
believes high  reliability soldering can only be accomplished by hand
soldering.  Can  anyone out there ditrect me to this Standard.  I have
been told it  definitely is not a muntions spec.  I also got the feeling
through  discussion that their reliance on this spec is based solely on
"that's the way  we always did it". I have also been told that this
"standard" is not the IPC/J  standards!!!!!
 
I thank all in advance for the help and assistance on this matter.
 
Bill Black
Medco



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