Electronics Forum | Thu May 04 16:00:07 EDT 2000 | Nick
A Machines reliability will remain the same If it places 25 parts or 25,000 parts. It has nothing to do with "how many parts" but on the repeatability of the machine type. You would notice less misplacements on a low count PBC due to seeing less comp
Electronics Forum | Tue May 16 13:53:19 EDT 2006 | patrickbruneel
Hi Rob, Don't feel sorry I like these discussions make us think more thorough. This is the supporting scientific paper they used in support of the exemption request. Effects of lead on tin whisker elimination By Wan Zhang and Felix Schwager. http:
Electronics Forum | Thu May 31 21:45:48 EDT 2012 | davef
rsthompson ... if you're talking about bare boards IPC-5701, Users Guide for Cleanliness of Unpopulated PBC, Table 8 ||Bare board final surface finish Ions||Hot air solder level||OSP over copper||Gold over nickel Chloride||0.75 ug/cm^2||0.75 ug/cm^2
Electronics Forum | Tue Jul 20 14:17:34 EDT 1999 | Curtis
| We are a medium sized PCB assy. house manufacturing about 2000 motherboards a day. There is a major problem we are facing at the wave soldering stage, i.e. warpage of the PCB. As soon as the PCB touches the wave it warps severely from the centre
Electronics Forum | Mon Aug 31 16:23:37 EDT 1998 | Bill Boles
We have an unusual problem here and I'm reaching for more input if anyone can help??? We are an OEM manufacturer of PCA's. After a history of consistent quality designs, we have one small memory SIMM that is causing major headaches for us and our PCB
Electronics Forum | Thu Sep 03 12:36:11 EDT 1998 | davef
| We have an unusual problem here and I'm reaching for more input if anyone can help??? We are an OEM manufacturer of PCA's. After a history of consistent quality designs, we have one small memory SIMM that is causing major headaches for us and our P
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