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 | Mon Mar 01 22:24:53 EST 1999 | Dave F
| It seems to be that we have to much NaCl left on our assambled PCB's. | The flux we use is from cobar. They say it can not be from the flux... So what can be the reason, what kind of problem may occer when there is to much NaCl. | George: When so
Electronics Forum | Sun Jun 10 12:15:37 EDT 2001 | procon
Hello Danial, Leave it up to most to blame the relow oven for their tombstoning problems when in fact it is usually the last to cause it. The biggest culprit of tombstoning is the pad design followed by the print quality. Usually, we find that the p
Electronics Forum | Wed Apr 14 20:48:43 EDT 2004 | Ken
Just a thought.... Some Fluxes require temperatures upto 260F (127C). Are you using water based flux or solvent (alcohol). I have noticed that many wave machines are NOT capable of preheating adequately when using water based materials. This can
Electronics Forum | Thu Sep 17 12:00:19 EDT 1998 | Mike C
| | I need an evaluation process to prove to a customer that our no-clean process does not leave excessive residue? Any ideas? | Wayne: More of the same as Chry and Justin. | KEY ISSUE | The first thing that you need to know is: What does your cus
Electronics Forum | Thu Sep 17 11:09:32 EDT 1998 | Dave F
| I need an evaluation process to prove to a customer that our no-clean process does not leave excessive residue? Any ideas? Wayne: More of the same as Chry and Justin. KEY ISSUE The first thing that you need to know is: What does your customer me
Electronics Forum | Wed May 03 20:04:21 EDT 2000 | Dave F
Joe: Hey, just hose everyone down with water when your humidity starts to decrease to below 40%. ;-) Actually, that�s how some humidity controllers work, when added to your heating system. Well basically that�s how they work. I�m not tryin� to
Electronics Forum | Wed Apr 14 17:39:20 EDT 1999 | Dave F
| Can someone explain the difference between solder "fines" and solder balls? Is there an official specification where "fines" are defined? What is the spec for "fines"? | | I consider "fines" individual unmelted metal spheres that are found in s
Electronics Forum | Tue Aug 07 01:16:27 EDT 2001 | mugen
When I was reading the smartsonic fantasy, I ended hospitalized for infectious laughs, and side split'in stitches..... Now that cold reality has eased my pain, I must with calm headed purpose, mark my agreement to the Mr.Sean, that salespersons can
Electronics Forum | Thu Jul 15 19:05:58 EDT 1999 | Earl Moon
| | | We have been encountering diminishing ball shear readings these past few weeks, despite the fact that we did not change any ball shear tester parameter. Our reflow parameters are also within spec limits. ( 210-220 deg C max temp. and 40-60 sec
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