Electronics Forum | Sun Mar 09 18:33:04 EST 2003 | Dean
Tact time is a poor measure of your throughput capability. The Number of boards produced per hour or shift or 24 hour period is the true measure of what you are really doing. Your theoretial "tact time" can be used as a metric to judge performance,
Electronics Forum | Tue May 04 16:43:41 EDT 2004 | russ
So the only difference between the "regular solderers" and the BGA people is trace repair? If that is it than you should put the pay in range with your PCB repair people. We do not pay any extra for BGA rework since all they do is wick pads (common
Electronics Forum | Mon Jan 10 16:14:17 EST 2005 | fmonette
Hi Gary, With plastic BGAs it is more difficult to remove the trapped moisture because of ground planes in the substrate. If your parts have been sitting around for a long time they may be soaked with moisture and in some cases the 48 hours bake cy
Electronics Forum | Thu May 11 12:44:04 EDT 2006 | slthomas
One of our customers' products has a couple of adjacent 0603 packages (one resistor, one cap) that are .010" apart. They are side by side, not end to end. The adjacent pads between the two parts are electrically connected so bridging isn't an issu
Electronics Forum | Tue Aug 29 17:36:39 EDT 2006 | aj
Hi Bruce, We are a CM aswell and I can sympathise with your situation but you will have to advise the customer that you have issues with this board finish and recommend an alternative. If they are exempt why are they supplying you with Leadfree Boar
Electronics Forum | Thu Mar 13 15:17:03 EDT 2008 | slthomas
about WHY violating IPC design standards gives you grief? Do they even know they exist? We've got one in particular that seems to shoot from the hip. I want to tell them the "why" as well as the "what" so they'll be a little more proactive. My fee
Electronics Forum | Thu Sep 11 20:32:08 EDT 2008 | diesel_1t
I know that most of the problems are called solder issues, this is why i put "solder related" quoted because i have seen more than usual "solderability issues" posted on this forum lately. I had a tombstoning issues with 0603 resistors, on some mat
Electronics Forum | Wed Jun 30 00:20:08 EDT 2010 | leadthree
Thanks for your reply. This production lot is already finished. We produced in 2 lots, first was no-clean (and was ok), 2nd lot was cleaned (aqua based), and I need to look into the cleaning further. Since it's all finished I can't get parts from se
Electronics Forum | Wed Sep 21 17:53:19 EDT 2011 | action_101
I would like some input on reworking BGA's and the best method. I have reworked BGA's since 1998 using both micro stencils and just flux dipping the parts. I have reworked SN/PB and lead-free (AIM NC258) BGA's for the last 8 yrs. with just flux. I ha
Electronics Forum | Fri Sep 23 10:28:43 EDT 2011 | minda
A big customer for controller cards is complaining about the quality of the soldering on our PCBs. The photographs they sent were very unreasonable, pointing out minor defects such as tiny (tiny as in smaller than the point of a pin) drips of solder
