Electronics Forum | Thu Jul 15 10:28:49 EDT 1999 | Boca
| I'm looking into vision inspection equipment to automatically inspect SMD placement and solder joint quality. Does anyone have any recommendations or know of any commonly used equipment? Do other manufacturers use vision systems at their inspecti
Electronics Forum | Thu Jun 04 11:23:44 EDT 1998 | Frank S
If you could measure and chart 3 variables in my process, what would they be? The boards that I produce are on panels that are 12up and 2x4 up. All boards are single sided paper base w/o plated thru holes. They are on scored panels that measure 7"
Electronics Forum | Thu Jun 04 11:57:59 EDT 1998 | Pete M
Be more specific on your problems? | If you could measure and chart 3 variables in my process, what would they be? | The boards that I produce are on panels that are 12up and 2x4 up. All boards are single sided paper base w/o plated thru holes. The
Electronics Forum | Thu Mar 07 16:53:55 EST 2002 | PeteC
The AOI machines are basically to replace human inspectors. They certainly do a better job. First you have to look at why is there so much inspection. Usually its becuase people have no confidence in thier processes or lack the knowledge to create an
Electronics Forum | Wed May 22 22:59:04 EDT 2002 | alex_kirichenko
Hello!!! Just to say, I've never even heard about placing parts on double-sided tape for inspection... We always build one board placing parts on paste/glue and inspect it befor reflow. With suppliers specs of 6hours at least, I don't see any prob
Electronics Forum | Mon Jun 17 15:04:08 EDT 2002 | genny
I think I had my units wrong in my previous post - that blueprint job was 6 years ago and fading fast. My level of 700 would have the same units as Dave's level of 1000. This is the metric measurement of lux, vs the imperial footcandles. fc to lux
Electronics Forum | Wed Jun 19 14:44:11 EDT 2002 | kenbliss
It sounds like your inspector improved quality and pre-staging your feeders dramaticaly increased uptime on your machine, thats great to hear. One cautiionary note, be careful not to flood your production area with parts off of your SMT line. With
Electronics Forum | Mon Sep 23 13:08:47 EDT 2002 | dragonslayr
Daan has made a valid point with regards to expertise and use of a machine. Yet I recognize that with advanced technology, trades must occur. A hghly sophisticated AOI unit can and will help reduce overall cost of production. Therefore, a need to ha
Electronics Forum | Thu Apr 17 16:43:09 EDT 2003 | davef
Background: * Bulwith, Ronald A., �Failure Analysis of Solder Joints�, �Insulation/Circuits� magazine, February 1978 * Banks, Donald R., et al., �The Effects of Solder Joint Voiding on Plastic Ball Grid Array Reliability�, Proceedings of the Technica
Electronics Forum | Fri Jul 23 09:12:34 EDT 2004 | davef
We have run not AgPd [that we know of]. We can comment on PdNi. [But you're probably have Ni under the AgPd] In general, palladium solution rate is much slower than other sacrificial finish materials that we use for the purpose. The key then is to
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