Electronics Forum: solder and problem (Page 10 of 632)

Uncoalesced solder problem in fine pitch IC pads

Electronics Forum | Wed Sep 10 16:09:45 EDT 2008 | vladig

To me it speaks about teh quality of the engineers. I[ve seen both types, though Vlad

Uncoalesced solder problem in fine pitch IC pads

Electronics Forum | Thu Sep 11 10:18:15 EDT 2008 | gregoryyork

Sorry all I know is that storing the paste Tip down the flux will run to the tip of the cartridge so will be runny initially then dry up as you use the cartridge. Unless the Rheopump mixes it before application

Uncoalesced solder problem in fine pitch IC pads

Electronics Forum | Thu Sep 11 10:25:51 EDT 2008 | rarnold

Flux is less dense than metal so it 'floats' to the back NOT the tip when the tubes are stored tip down.

Uncoalesced solder problem in fine pitch IC pads

Electronics Forum | Thu Sep 11 11:11:31 EDT 2008 | gregoryyork

Yes sorry you are right so you have answered your own question anyway. Dry to start runny at the end

Uncoalesced solder problem in fine pitch IC pads

Electronics Forum | Thu Sep 11 12:38:45 EDT 2008 | vladig

I'm curious how many knobs have left to be turn? :-) Isn't time an issue in a production environment? Vlad

Best solder paste printer with solder paste inspection and AOI function-Recomendation

Electronics Forum | Thu May 26 07:53:42 EDT 2022 | jojoled

Hi.Thanks for reply. 1. - I guess after JETting the paste, the head will go aside, to allow head with HD camera(SPI) to do the job.....and thus if used for AOI , the same camera will be much higher above components, not damaging anything....this is

Wave soldering problem - strange colour of the solder

Electronics Forum | Tue Jan 16 07:17:20 EST 2007 | adamp

I have checked pot temperature in different parts of solder pot and it looks like it is correct (250C). I have also lowered solder pot temperature and removed copper from the surface of the solder pot (operation repeated couple times). There is still

Wave soldering problem - strange colour of the solder

Electronics Forum | Mon Jan 15 13:38:29 EST 2007 | realchunks

Check the temp of your pot. It may be getting cooler if you can notice a difference in pump height and density. You may have lost a heater element or two. You can adjust your pot chemestry, but why would you want to if your solder sample came back

Wave soldering problem - strange colour of the solder

Electronics Forum | Tue Jan 16 18:13:25 EST 2007 | greg york

Try to process the composite pallet through the wave without any flux and view volume of smoke and if any residue is deposited in the wave when it exits. My guess is that the pallets are releasing some binders that are high boiling and this in turn c

Wave soldering problem - strange colour of the solder

Electronics Forum | Fri Jan 19 13:42:11 EST 2007 | russ

Even the level of solder in the pot can have effect on your wave height. backflow gate may have been tweaked a bit, that affects wave height, many many things affect the proper RPM required for the correct wave height. Pot may be a little lower tha


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