Electronics Forum | Mon Nov 28 09:46:24 EST 2005 | pjc
I have waved gold (ENIG) boards. That's a pretty hot pot at 260C, wow. I have used 245C with good results. All other parameters look OK a glance. Well, PCB temp looks a little hot too at 130C before pot. 90-100C is typical for most No-Clean flux. At
Electronics Forum | Thu Feb 24 14:58:11 EST 2000 | Greg denham
Does anyone have any information on baking boards to remove moisture before reflowing and waving assemblies? I've been told that we should do this to stop such problems as delamination of boards, blow holes, solder balls, etc. I don't know have any e
Electronics Forum | Thu Feb 24 14:58:11 EST 2000 | Greg denham
Does anyone have any information on baking boards to remove moisture before reflowing and waving assemblies? I've been told that we should do this to stop such problems as delamination of boards, blow holes, solder balls, etc. I don't know have any e
Electronics Forum | Wed Sep 20 10:36:27 EDT 2006 | proy
I am considering moving my spray fluxer into a completely separate operation. Has anybody any comments of sraying VOC free flux on boards, then putting them in a drier/holding rack for possibly say overnight, then running them through wave solder?
Electronics Forum | Wed Sep 20 16:27:06 EDT 2006 | proy
As we are a low volume shop, the extra handling is not too much of a concern. My biggest concern is if the flux sitting on teh board for a long time (few hours) is going to cause any problems in solderability. My thought is that it should not as it
Electronics Forum | Tue Sep 12 04:48:26 EDT 2000 | Daniel
Is there a risk of popcorning plastic components during wave soldering? (The PCB is first surface mounted, reflowed and washed. It is sometimes left in air environment for as long as 48 h before the throgh hole components are mounted and they are wa
Electronics Forum | Wed Jan 14 06:41:08 EST 2009 | andrzej
I did not tried this before (never hada chance to do it) but I considered such option - maybe try using temporary wavesolder mask on such small components. Run both sides of PCB through SMT oven and then mask 0402 completely and go with wavesoldering
Electronics Forum | Thu Sep 06 17:37:05 EDT 2007 | hakerem
Hi Joris - There is an excellent wave solder guide called "Take No Prisoners" that includes instructions for attacking and eliminating solder balls and preventing their recurrence: 1. Increase Dwell Time Solder balls are normally caused by too much f
Electronics Forum | Mon Sep 10 12:27:32 EDT 2007 | hakerem
Hi Dave - You are correct that I was not clear in my comments. I assumed Joris had seen the usual solder balls accompanying his blowholes. Nevertheless, Joris, my first two recommendations still stand. Increasing the dwell time of your leads in t
Electronics Forum | Wed May 12 07:34:42 EDT 2004 | RLeonard
The standard machine is set from the factory at 7-9 degrees, 7 is the most standard, why are you considering the change? before doing any thing to the machine, first identify why? what type of defects are you seeing? I have found, depending on the t
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