Electronics Forum | Tue Feb 19 19:36:21 EST 2002 | davef
You weren�t clear but I assume the problem is not widely distributed and affects only a few parts on each board. Do this trick: * Cut a ~1� piece of fairly serious wire, like 18 or 12 AWG. * Strip the insulation. * Gear-up with gloves, glasses, and
Electronics Forum | Fri Feb 25 16:04:18 EST 2000 | Dave F
Sze-Pei: Are talking BGAs here? Flux type? Profile? Pad material? Aperture size? We won�t want to give people too many hints on what the problem is would we? BGA voiding is a function of materials, methods, environment, and human factors. Con
Electronics Forum | Fri Feb 25 16:04:18 EST 2000 | Dave F
Sze-Pei: Are talking BGAs here? Flux type? Profile? Pad material? Aperture size? We won�t want to give people too many hints on what the problem is would we? BGA voiding is a function of materials, methods, environment, and human factors. Con
Electronics Forum | Mon Mar 27 20:53:12 EST 2006 | davef
If you believe: * There is air in your paste AND * You are not whipping the air into the paste ... You should: * Return the paste to your supplier * Get it replaced * Begin qualifying a replacement supplier. One thing before you go racing off to ly
Electronics Forum | Tue Apr 04 16:39:41 EDT 2000 | Kevin Facinelli
Does anyone have any good information on alternative solder paste materials like the Emerson and Cuming CE 3103. I would be interested in any information anyone may have on these new materials...... Thanks, Kevin
Electronics Forum | Wed Jan 12 19:48:41 EST 2005 | chad
Sue, What is the material your pallet is made of?? Are your thru pocket openings beveled??
Electronics Forum | Wed Oct 13 14:27:08 EDT 1999 | mikeh
Dave F, We are currently using a latex based ambient/thermal cure material that is applied by hand or automated dispensing equipment. Printing is an option for us, but we have not had much luck with this particular material. The mask is peeled off a
Electronics Forum | Wed Mar 01 16:58:03 EST 2000 | Dave F
Robert: On your balls: Solder suppliers make several "standard balls" and can advise you. On your cleaner: Recycling water / direct to drain? Most batch cleaner suppliers can advise you on recycling and filtering systems to keep you out of troub
Electronics Forum | Wed Mar 01 16:58:03 EST 2000 | Dave F
Robert: On your balls: Solder suppliers make several "standard balls" and can advise you. On your cleaner: Recycling water / direct to drain? Most batch cleaner suppliers can advise you on recycling and filtering systems to keep you out of troub
Electronics Forum | Wed May 28 11:56:18 EDT 2003 | blnorman
Yes we are using "silicones", but to find this contaminant we were looking for "silicon" the element by SEM/EDS. We use Dow materials and my contact there is checking to see if they have any info.
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