Electronics Forum | Fri Jun 09 22:04:07 EDT 2006 | mumtaz
So sorry sir Fastec, but I am Mumtaz, not Guru. Call me a troll, but I have been a part of pcb assembly since it's inception. I speak from experience but also am eager to accept new ideas. Yes, I know the Guru may be playing us as fools and his pr
Electronics Forum | Wed Jun 21 16:04:07 EDT 2006 | bman
"Another question, is the facility with 200A @ 208V able to operate this assembly line properly?" That could be a problem, big ovens pull a lot of juice. Our 7 zone Conceptronic HVN-102 runs on 480 Volts and is on a 160 amp breaker, for example. Y
Electronics Forum | Thu Jul 27 04:29:18 EDT 2006 | pbarton
We have our waste water tested periodicially by a local lab to ensure that we are in compliance with local discharge regulations and as part of ISO14001 approval. This analysis includes levels of metals as well as organics, but it will tell you littl
Electronics Forum | Wed Oct 04 11:36:06 EDT 2006 | flipit
Hi, Anyone ever have an issue with stray capacitance when using no clean solder paste. We are having a timing problem on one product. The problem goes away when we clean the assemblies. We use a no clean process normally. These assemblies worked
Electronics Forum | Thu Oct 12 09:22:12 EDT 2006 | charless
Hi We are experiencing different failure modes between leaded and lead free through hole assemblies. The boards are PTH. In the case of lead free boards we are seeing fracturing of the component legs much earlier than we do with leaded assemblies. N
Electronics Forum | Mon Oct 30 21:43:08 EST 2006 | davef
So, after the repair of a BGA, you notice white reside on a nearby connector. Correct? [Sorry we're so dense. Long day.] Tell us about: * Flux class used in repair * Flux class used in original assembly Why are you baking the assembly after repair
Electronics Forum | Tue Oct 31 01:32:47 EST 2006 | hanocete
thanks for your reply, actually we bake the PCB assembly prior the rework because the package was exposed for quite some time already. The baking time was 24hrs @ 125 deg.C. We notice that there were flux residues on the connectors after the baking.
Electronics Forum | Fri Dec 15 11:06:06 EST 2006 | Gman
Hello All, Is Ionic Cleanliness testing using say an Ionograph on No-clean assemblies a valid test? If not, why? I understand factors like PCB cleanliness but is the 1.56ug/in2 IPC criteria valid for no-clean assemblies and can an Ionograph be used
Electronics Forum | Fri Mar 02 16:12:45 EST 2007 | peter
We are in the early stages of converting al of our customers to No-Clean solder. I expect some customers to have no objections, others I am sure will be concerned about the "residue." I know that chemistries have improved greatly and if the process i
Electronics Forum | Wed May 02 04:32:37 EDT 2007 | Sami
Dear all. I am now searching for companies who made Tracks for Automatic assemblies used for Radial machine as loader and uloaderwith a big capacity for the number of PCB . our product is a little big PCB for TV and LCD. Can any one help me with some
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