Electronics Forum | Wed Aug 20 17:05:42 EDT 2008 | naynayno
We have experienced contamination under flat chip arrays. The lab report is still open but it appears to be dendrite growth. We have been trouble-shooting our process and cleaning equipment. My question is are there any specific design or best p
Electronics Forum | Tue Jan 11 08:32:50 EST 2000 | Squirel
There is no way like the X-Ray. I wouldn't trust my balls to just any old inspection. Is there really any other way? I don't think so!! Spending the extra money on a X-Ray machine will save you money down the road. Squirel
Electronics Forum | Thu Aug 21 08:15:07 EDT 2008 | naynayno
Thanks Dave, I will be sticking with Manufacturing Engineering. These are good guidelines but what is standard clearance for various packages? This is a dimension we usually seek by eye, whether we will have a problem or not. We use straight DI -
Electronics Forum | Mon Jul 02 03:55:07 EDT 2012 | mccabekev
We are having a problem with inspection markings on our boards running when conformal coating is applied We have tried standard permanant markers, and also paint markers, but both run when the coating is applied. There must be someone out there who
Electronics Forum | Mon Jul 02 08:57:21 EDT 2012 | dontfeedphils
It'll probably help to know what type of coating you're using on your boards, how it's being applied, and how it's being cured.
Electronics Forum | Mon Jul 02 10:44:14 EDT 2012 | mccabekev
We are applying a SR conformal coating via aerosol. Both permanent marker and paint pen are running as soon as the spray hits it
Electronics Forum | Mon Jul 02 12:01:28 EDT 2012 | patrickbruneel
This material contains acetone in 30% plus range and toluene with this solvent combination ink is not an option. You will have to get a CC that doesn’t contain acetone as solvent.
Electronics Forum | Tue Jul 03 03:12:20 EDT 2012 | mccabekev
Unfortunately our customers expect this coating on the boards so that is not an option. There must be something that can mark underneath without washing off. The silk screen doesn't wash off
Electronics Forum | Tue Jul 03 03:13:14 EDT 2012 | mccabekev
Unfortunately our customers expect this coating on the boards so that is not an option. There must be something that can mark underneath without washing off. The silk screen doesn't wash off
Electronics Forum | Thu Jul 05 09:43:32 EDT 2012 | duso02
What is the specific make/model of the SR? Being in an aerosol, I'm sure they thin it down quite a bit so that thinner is what is attacking your ink.
