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TO-220 Failures due to lead bending?

J

John Larkin

Jan 1, 1970
0
John and Roy, two turds, one pile of shit.

Since you guys cannot control yourselves, I'll end this topic for you. Bye
kids!

Promise?

John
 
T

Tim Auton

Jan 1, 1970
0
Brian said:
Don, you have 100 times more brain power than both those idiots John and
Roy. And I bet in the end, you are much more satisfied doing whatever you do
now or in the future than to be like them, trying to strut around like
peacocks, but feeling inside like little boys.

You seem to be strutting. A lot.


Tim
 
J

John Larkin

Jan 1, 1970
0
Since sci.electronics.design has no employment test in its charter, I
think that board stuffers and more still former board stuffers are if
anything on an average more qualified to post here than those who never
stuffed a board!

It would be great to have a contract assembler participate in this
group. We've just in the last week or so we've discussed ionic
contamination, bga soldering, hand tsop soldering, ROHS, tin whiskers,
and I think a couple of other relevant issues that an assembler could
help us on. But all B wants to do is talk about homosexuality and how
smart and athletic he is, although he does seem to have side
interests, like excrement. If he knows anything about electronic
assembly, he sure doesn't want to share it. But like he says, he owns
the business but mostly stays at home, playing with the internet and
other things. If he is a homebody, the least he could do is post us a
good recipe now and then.

John
 
J

John Larkin

Jan 1, 1970
0
Post the name of the truckstop where you clean toilets with your tongue. I
mean, inbetween being a boy-bitch for the truck drivers.

Gosh, you do have a rich fantasy life.

John
 
Y

Yzordderrex

Jan 1, 1970
0
Yea, but the doggone drives are being mis-applied to begin with. The
people 'up front' tried conformal coat. Was a half-hearted attempt
with less than adaquate coverage. The fact that they pulled out the
conformal coating is enough to tell me they knew they had a problem
with the application. Now they want answers. Seems production has
learned how to properly form the leads on the fets, so that hurdle has
been crossed. My answer is stick a nema 4 washdown drive in the
application and call me if you have any more failures.

My isn't it something that this thread had turned into.

regards,
Bob
 
S

Spehro Pefhany

Jan 1, 1970
0
Yea, but the doggone drives are being mis-applied to begin with. The
people 'up front' tried conformal coat. Was a half-hearted attempt
with less than adaquate coverage. The fact that they pulled out the
conformal coating is enough to tell me they knew they had a problem
with the application. Now they want answers. Seems production has
learned how to properly form the leads on the fets, so that hurdle has
been crossed. My answer is stick a nema 4 washdown drive in the
application and call me if you have any more failures.

Right on.
My isn't it something that this thread had turned into.

Like a s***storm, it will pass.
regards,
Bob


Best regards,
Spehro Pefhany
 
M

Michael A. Terrell

Jan 1, 1970
0
Roy L. Fuchs said:
"spineless leader" is a nice oxymoron.

John

Indeed. Is that what "Brian" is? I think so. :-]


Or a nutless blunder! ;-)


--
Service to my country? Been there, Done that, and I've got my DD214 to
prove it.
Member of DAV #85.

Michael A. Terrell
Central Florida
 
M

Michael A. Terrell

Jan 1, 1970
0
Brian said:
A link? Try www.ibm.com. I cut my teeth for a couple years there. AS400
Div., some FA work. Also got some good exposure to contract mfg there, which
is what I now enjoy.

My latest company? Yeah, thats what I want to do, give you fucking moron
troublemakers a link to my website. Yeah, that would be smart. Why don't I
advertise that I leave the doors unlocked with about 2 million in equimpment
inside? What a tard you are!

Of course, then you have to add that having your validation means absolutely
NOTHING to me. I think my personal value will be OK w/o it.


Your e-mail address is from http://www.w3gate.com which links to:
http://www.risingtechnologies.net/index.html which is a rather plain
website with missing images for a contract assembly business.

Rising Technologies, Inc.
N350 County Road Q
Markesan, WI 53946
Phone: (414)507-0507
Fax: (509)562-3484
Email: [email protected]


BTW, did you get permission from Mapquest to copy their map data to
your website?


--
Service to my country? Been there, Done that, and I've got my DD214 to
prove it.
Member of DAV #85.

Michael A. Terrell
Central Florida
 
J

Jim Thompson

Jan 1, 1970
0
Roy L. Fuchs said:
To add insult to injury, the GM attacked us at a budget meeting a few
months later, for "wasting so much money on prototype PCBs". Our
spineless leader didnt have the balls to point out the GM was the idiot
that ordered the extra 1,490 PCBs.

Cheers
Terry


"spineless leader" is a nice oxymoron.

John

Indeed. Is that what "Brian" is? I think so. :-]


Or a nutless blunder! ;-)

"Nutless blunder"? Bwahahahaha! May I steal that phrase ?:)

...Jim Thompson
 
T

Terry Given

Jan 1, 1970
0
B

Brian

Jan 1, 1970
0
--
Service to my country? Been there, Done that, and I've got my DD214 to
prove it.
Member of DAV #85.

Michael A. Terrell
Central Florida

I was actually snickering the other night about how long it would take those
two to actually follow an EASY trail of breadcrumbs. But you ruined it, now
we will never know!

I'll come clean...
I read the newgroups alot (and have posted over the years. Looking back at
some of those would have given a link, too). I read Roy's posts and they are
always the same. So I figured I would post back as DUMB as Roy does in TONS
of threads. It went right over his head!

So the reality is, I gave Roy a reflection of himself, and they found it to
be everything many of us already see in him. Funny, he thinks I was stupid
when I acted just like him in his usual SED fashion!

Larkin, I admit I have seen you contribute much, but you kind of got in the
crossfire. But dang, stop playing with people like Roy, it makes you
"dirty"!
 
J

John Larkin

Jan 1, 1970
0
I was actually snickering the other night about how long it would take those
two to actually follow an EASY trail of breadcrumbs. But you ruined it, now
we will never know!

I'll come clean...
I read the newgroups alot (and have posted over the years. Looking back at
some of those would have given a link, too). I read Roy's posts and they are
always the same. So I figured I would post back as DUMB as Roy does in TONS
of threads. It went right over his head!

So the reality is, I gave Roy a reflection of himself, and they found it to
be everything many of us already see in him. Funny, he thinks I was stupid
when I acted just like him in his usual SED fashion!

Larkin, I admit I have seen you contribute much, but you kind of got in the
crossfire. But dang, stop playing with people like Roy, it makes you
"dirty"!

OK, we're all buddies now. Let's talk about electronics.

John
 
B

Brian

Jan 1, 1970
0
I do have to say, some of you do act so stupid OVER and OVER and OVER and
OVER.....

See what I mean, go look at past threads you guys acted like infants in....

Jim, have you given up being the SED policeman? I remember years back you
looking into someone hacking others and posting as others, but it was all
your vivid imagination. That kept me laughing for a long time. You have
about ZERO stones to throw at anyone when it comes to stupid acts.

The real question is "why" some of you do this stuff for YEARS. And think
its clever.
 
B

Brian

Jan 1, 1970
0
OK, we're all buddies now. Let's talk about electronics.

One last comment....

Doesn't it make you wonder ever why some of the people who should be so
bright act the dumbest? It is really fascinating. I mean, some are
superficial and easy to peg as "limited", but some you can tell are pretty
bright except for the occassional "brain fart". Ring the bell, they react.

As for some of the assembly items you mentioned, the big problem with
"solutions" is that many of them look good now, will fail miserably in the
future. Some studies predict virtually 100% failure rates in under 8 years.
Thats scary.
 
J

John Larkin

Jan 1, 1970
0
Doesn't it make you wonder ever why some of the people who should be so
bright act the dumbest? It is really fascinating. I mean, some are
superficial and easy to peg as "limited", but some you can tell are pretty
bright except for the occassional "brain fart". Ring the bell, they react.

This is just a newsgroup. I (or anyone else) can be as dumb or as
arrogant or as goofy as they want here, and it doesn't matter. My main
occupation in life is to amuse myself, not to impress anybody in
particular.

So, do you generally use water-soluble flux in your solder paste? How
do you wash stuff, and how do you guard against leaving
ionic/conductive stuff trapped under parts on boards?

John
 
R

Roy L. Fuchs

Jan 1, 1970
0
Doesn't it make you wonder ever why some of the people who should be so
bright act the dumbest?

Like you, not posting anything at all in this thread that is
contributory in nature. It is the same story for you everywhere.
 
B

Brian

Jan 1, 1970
0
Having seen a lot of data on the subject, we run no clean. Treated right, it
has a lot less effect on the circuitry than a wash process that is not kept
really clean. Any cheating at all with a wash process, and the results are
quite bad and the boards WILL fail.

With no clean, you just must use compatible processes all through production
for it to perform well. Don't do touch up with water soluable and expect to
even spot wash it. If you conformal coat, you must use a water based one.
Basically, you just have to respect what it is, controlled, encapsulated
residue. Most people that have issues with it muck it up themselves by
treating it incorrectly.

If you want to do water wash, you simply MUST monitor the process
consistently and keep it clean. Isolate the stages' water from each other.
Final rinse MUST be DI water, and I really mean must. Deleting this step
kills ya. Set the washer PSI and flow rate too low, you have issues. To
high, issues. Its a tighter process than one would think.

We have found the synthetic fluxes to work best for us in a no clean
process. We just have not seen any issues with it at all. A perfect wash
system would produce a board with less contaminants, yes, but I rarely saw
this "ideal" anywhere, making, to me, no clean the more practical and
reliable process for the majority of products.
 
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