Electronics Forum: vitronics and solder (Page 8 of 118)

Selective soldering pallets and solder balls

Electronics Forum | Mon Dec 02 12:52:40 EST 2002 | slthomas

We're trying a selective soldering pallet for the first time with mixed reviews. Are solder balls a prevalent problem with this process? Most of them seem to correspond with pallet wall locations....is it too much turbulence from the rotary chip wav

Selective soldering pallets and solder balls

Electronics Forum | Mon Dec 02 16:01:15 EST 2002 | russ

If you can, attach athermocouple to the locations where you are getting solder balls. A previous product I had showed the same thing and we found that we had inadequate preheat leaving the liquid flux to splatter when it hit the wave. It could aslo

Selective soldering pallets and solder balls

Electronics Forum | Mon Dec 16 17:35:43 EST 2002 | davef

Jim Consider issuing a purchase order to your assembler for the purchase of selective wave soldering pallets required to solder your board. That way, you: * Own the pallets. * Can take the pallets with you should you decide that another assembler

Selective soldering pallets and solder balls

Electronics Forum | Mon Dec 16 19:05:57 EST 2002 | davidduke

Steve , I agree with all the responses you have received. Randy Villeneuve is absolutly correct in all of his assesments and I would consider him an expert with the process , Gris is correct about adding a "heat sink" to the process complicating pr

Evalution on solder paste and spray flux

Electronics Forum | Thu Jan 27 11:23:45 EST 2005 | russ

Well first off I wouldn't evaluate paste for a wave process. I would use solder bar instead. Flux - top side fillets and no shorting on the solder side, does it clean well after processing if using water soluble flux. How wide is the process win

Board change and solder not adhereing completely

Electronics Forum | Fri Apr 06 04:10:25 EDT 2001 | kensmoke

We recently had a multi block panal change at the vendor Now the production lines are producing solderability defects in great number. The makeup of the pcb is a type of fiber glass mask green in color and pads with no tinning just copper lands.

Selective soldering pallets and solder balls

Electronics Forum | Mon Dec 02 18:01:12 EST 2002 | GSW

Hi, Try to check if there is water absorbed in the flux or the humidity around the wave area. possibly plating on barrels that might be damaged?

Selective soldering pallets and solder balls

Electronics Forum | Tue Dec 03 15:26:07 EST 2002 | GSW

This might be a trival mundane suggestion but try to use non conductive plate to hold components. Probably even made of the pallet material. I am sure your pallet fabricator will have tons of scrap and he can help you find one. T

Selective soldering pallets and solder balls

Electronics Forum | Wed Dec 04 14:09:52 EST 2002 | Vince Whipple

By the way, what type of preheaters do you have? IR? Convection? If you have IR, there may be a way to cheat. Vince W

Use and Restrictions of solder containing lead

Electronics Forum | Thu May 29 16:04:08 EDT 2003 | Rick B.

When is the U.S. required to fully implement the use of leadfree solder? European Directive 2002/95/EC is talking about year 2006 restricting the use of certain hazardous materials in electrical and electronic equipment.ie Lead,mercury,cadmium and he


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