Electronics Forum | Mon May 14 17:11:48 EDT 2007 | russ
I am a CM, We do not use White tin either, we have had numerous solderability issues with this finish, We all agree when done correctly it is good, however I am at about 10% correct and 90% have issues. We currently use Immersion silver and Gold f
Electronics Forum | Wed May 16 12:32:34 EDT 2007 | realchunks
Most Durastone product have a very low moisture absorbtion rate. This makes it ideal to water wash them. I wouldn't tlet them soak in the water, but you shoul dbe safe to wash them usinf water. Once the water is used up, you should treat it as a h
Electronics Forum | Fri May 18 04:40:51 EDT 2007 | gregoryyork
Wash them in Saponifier frequently at around 40C rinse and dry thoroughly. I would imagine it could be going white if you have a resin system in the flux that is not water soluble. Ensure you are using suitable pallet material up to 300C for Lead Fre
Electronics Forum | Mon May 14 16:20:55 EDT 2007 | realchunks
Hi C-Dig, Are you testing circuit boards on a static mat? It could be conductive, which might short things out. I've seen this happen to our bench techs. You might want to look at getting a set of helping hands. The gizmo that actually holds the
Electronics Forum | Wed May 16 08:26:34 EDT 2007 | davef
It's possible that your lead-free solder will stick to mounting bolts more than SnPb solder. Lead-free solder has a high tin content. Tin is a very good solvent. You may need to coat the bolts with a solder mask to prevent the solder from sticking.
Electronics Forum | Mon May 14 18:59:23 EDT 2007 | mazemach1
I would like to ask anyone who may have use any equipment or device to check SMT socket leads. We have co-planarity problems with these sockets on the boards. The sockets we have are packaged in tubes and mostly the bent leads appear in different loc
Electronics Forum | Wed May 16 08:50:52 EDT 2007 | pima
Hello For long time we are fighting with problem to reduce/eliminate electrostatic charge caused by board cleaning machine- we re using Teknek machine. Maybe u guys have idea or from ur experience u know how to reduce electrostatic charge at sensit
Electronics Forum | Wed May 16 11:08:47 EDT 2007 | cman
I keep getting mentor files from my customers, they are supplied for us to extract the placement files from (ref des, x, y, theta) to date we struggle getting the data out of this file, does anyone know of a software that will strip the placement fil
Electronics Forum | Wed May 16 13:02:12 EDT 2007 | slthomas
Moisture barrier bags are polymer coated foil so are nearly gas impermeable. There's always some coating left at the weld (or it wouldn't stick) so they're not completely sealed but that's as good as it gets. Usually people use the vacuum to remove
Electronics Forum | Wed May 16 15:22:25 EDT 2007 | mainenetservices
Below is a call-in question: Has there been a Benchmark study done for Best-In-Class Cost Per Placement of components on PCBA? Also, is there an industry standard to calculate cost per placement of components on PCBA? Any help would be greatly app
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