Electronics Forum | Fri Aug 30 07:27:21 EDT 2013 | duso02
Contact the coating manufacturer to get their response. We use many different coatings every day and they all glow differently but that has no affect on the coating itself. As stated earlier, it's job is only as an inspection tool to identify where
Electronics Forum | Tue Aug 27 05:02:13 EDT 2013 | danyquintard
I think it is useful just to see where varnish should not be (eg connection parts). it is necessary to use another method to measure the thickness.
Electronics Forum | Fri Jul 26 03:52:03 EDT 2013 | danyquintard
Hi We produce electronic pcboards for the aircraft industry. Some of our clients think that the thickness of the varnish left is proportional to the intensity of the blue color of uv's pigments in the varnish. Out off, we know that is not true. The
Electronics Forum | Fri Jul 26 12:41:25 EDT 2013 | gallionc
We've had similar "disputes" with our quality department. A technical engineer from Nordson told me that the flourescents in the coating can look faint depending on the angle in which you look at the surface as well as how solder joints reflect the
Electronics Forum | Thu Jun 07 13:40:12 EDT 2001 | kerryn
Dave, We have very short runs (less than one hour). We have stencils all over the place waiting to be cleaned. It is too time consuming to scope each stencil to inspect for cleanliness. Do you know of any automated or scanning devices that can ra
Electronics Forum | Thu Jun 07 15:37:32 EDT 2001 | Claude_Couture
Kerryn, It's the first time I hear someone who needs an automated inspection machine to check the cleanliness of stencils. Why not improve on the cleaning method itself. I use ultrasonic batch cleaner. It takes 3 minutes to clean a stencil, 2 minutes
Electronics Forum | Tue Jun 05 13:23:27 EDT 2001 | kerryn
We are a high-mix/low-volume operation and end up cleaning 40 - 50 stencils per day. Does anybody know of an automated inspection system or "scanner" that can check a stencil for cleanliness?
Electronics Forum | Fri Feb 14 11:45:11 EST 2003 | SV
I was wondering if you guys had any experience with a distributed coverage Test and inspection strategy (Awaretest Xi) and could point me to technical studies in the field. thanks
Electronics Forum | Thu Sep 07 03:57:39 EDT 2000 | Steven Cheung
Does anyone know of a freely-available document which discusses the main considerations of BGA assembly and inspection (x-ray?). l need to know about pad sizes and inspection standards and when to underfill and when not to etc.. l am looking at ass
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