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soulder SMT Mat

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

soulder SMT Mat

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.

SMT sockets co-planarity problem

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

Board cleaning machine problem

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

Mentor file

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

Vacuum Bags

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

Best-In-Class Cost Per Placement of components on PCBA

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

Universal sequencer

Electronics Forum | Thu May 17 10:56:03 EDT 2007 | jdengler

Kevin, There are many possible causes. Can you give us some background? Has this exec ever been transfered into this machine from this PC? Do you have other exec's and/or PC's. As previously stated it sounds like a memory issue but could be communic

Solder wave shutdown

Electronics Forum | Mon May 21 03:44:31 EDT 2007 | lococost

2 more statement that need consideration in the logic: 3. heating up solid solder consumes more energy than heating up molten solder. 4. keeping solid solder at a constant temperature consumes less energy then molten solder. Result: We keep our pot

Solder wave shutdown

Electronics Forum | Tue May 22 03:11:40 EDT 2007 | Frank

We also keep our pot just below the liquidous state over night. It takes a lot less time to get it to temp than a cold pot and we aren't creating dross over night. If you have been shutting down over night for some time, then you can get an average


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