Electronics Forum | Mon Dec 22 16:02:22 EST 1997 | Justin Medernach
| what is your experience about the presence of the voids in the joints ? | Are they dangerous and when ? Vincenzo, Voids in solder joints can be caused by a number of factors. Let's begin with the flux vehicle in your soldering media. If the prope
Electronics Forum | Wed Jul 31 01:40:46 EDT 2002 | kenbliss
Cal and everyone else on this forum I completely agree. Everyone needs to keep in mind, not everything is going over to China. The press says it is, they also told us the stock market was great and then they said the stock market was bad. The medi
Electronics Forum | Thu Jan 02 12:15:10 EST 2003 | Mike Konrad
Richard, With respect to the Resistivity of Solvent Extract (ROSE) test, the test solution is exceptionally aggressive. With the Zero-Ion for example, the test solution�s resistivity is 150 M-Ohms. Additionally, because test solution is made up of
Electronics Forum | Tue Apr 01 18:42:18 EST 2003 | rdr
Well, here is what I have found so far. I have removed the top of the BGA and found that the ball had detached from the package. Three balls were removed with the two adjacent balls pulling the pads off the board and stayed attached to the BGA while
Electronics Forum | Sat Sep 04 06:25:07 EDT 2004 | GS
Many Thanks Dave for your patience (GBY). I was just trying to give a chance to our connector Supllier to read few micrograms less of NaCl found with the connectors. But even if using a "bonus formula" they are out of specs. Following it could be i
Electronics Forum | Thu Jan 19 15:21:54 EST 2006 | GS
my experience: End '80 beg '90 we use a solution like that. Along the assembly lines, next to P&P machines we use to get dry cabinets (cheap and simple cabinet) where to put inside of SMDs (reel & trays once out of MBB ) during the waiting time from
Electronics Forum | Mon Jan 30 16:30:55 EST 2006 | GS
Hi James, it could be the problem is due to residual of cleaner media entrapped under low gap of QFP 208 and 0,5 mm lead pitch. I remember in the past we had random problems of failure at test after board wash off process (DI Water wash). We met
Electronics Forum | Wed Jun 18 13:08:52 EDT 2008 | sleech
Dave: You are spot-on right! The major hurdle is that 70 degrees C is below the boiling temperature of water. Only a near zero relative hudity chamber will cause the ingested moisture to migrate from a package. There is one facet of the 70 degree p
Electronics Forum | Mon Sep 27 15:57:21 EDT 2010 | mikesewell
I've owned two PDR Lightmaster IR rework stations (bought at 2 diff. companies) and have been extremely happy with them. Closed loop,separate control of top and bottom heater via non contact thermocouples. Control the process, not the product - set
Electronics Forum | Wed May 19 20:39:28 EDT 2021 | kumarb
Elissa - SMTWenzhan ? She is great !! Have purchased many oddball and common parts from her including belts, filters, grease, etc. BTW - We placed 01005 using a nozzle she sold us with our Emerald-X. Unbelievable !! Granted the pick was hit or miss
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