Electronics Forum | Tue Apr 30 16:18:37 EDT 2002 | mantis
Can anyone tell me the difference between the these 2 fluxes as i cant find a data sheet(i searched the alpha metals website) for the E191.I know the the 2 fluxes are both no clean but other than that?? The reason i ask is i found some E191 in our st
Electronics Forum | Thu Feb 10 04:37:29 EST 2000 | Wolfgang Busko
Russ: If it�s true that they have been reworked to HASL I guess that something went awefully wrong at that stage. If you have some bareboards left have them checked thoroughly. M2C Wolfgang
Electronics Forum | Mon Feb 14 20:29:20 EST 2000 | Russ
It was the wave process, Just thought I'd let everyone know for future reference. Partial reflow at selected leads I am now aware that 63/37 does indeed have "a slushy zone" that I thought was not possible. Russ
Electronics Forum | Wed May 01 10:16:05 EDT 2002 | davef
Consider contacting Alpha Metals at http://www.alphametals.com/tech_services/index.html
Electronics Forum | Fri Aug 29 10:38:49 EDT 2008 | patrickbruneel
Look at this article http://circuitsassembly.com/blog/?p=191 The EU commission totally lost contact with the real world.
Electronics Forum | Fri Feb 11 05:44:08 EST 2000 | Dean
Sounds like black pad to me. I just suffered this last week. Track your fab lot codes. Just in case. I processed 1000 fabs of 2 lot codes through 1 line (also WS609). 1 lot code failed with black pad the other did not. With one common mfg. proc
Electronics Forum | Mon Feb 14 12:19:32 EST 2000 | Dave F
Dean: I associate black plague as an immersion gold process problem (although I could easily be wrong): Everybody looks at the nickel, but the cause turns out to be the immersion gold is too aggressive. The immersion gold works by corroding the nic
Electronics Forum | Mon Jan 10 19:48:40 EST 2000 | Dan Woodward
Contact Barry Revels in England at ViaSystems: +44 191 204 2101, barry.revels@viasystems.com He is in the PCB assembly area, but can turn you on to the fab shops. Tell him I referred you. I don't think Teradyne makes large boards in Europe, bu
Electronics Forum | Wed Feb 09 19:55:27 EST 2000 | Russ
Hello All! I have a problem that hopefully someone out there might have some ideas. I have an assembly that upon the "dental pick test" the entire solder fillet is coming up with the lead and leaving what appears to be a bare pad. I believe that th
Electronics Forum | Thu Feb 10 09:43:42 EST 2000 | Glenn Robertson
Russ - I agree with Dave and Wolfgang that the boards are the top suspect. The idea of "rework" from Gold to HASL sounds scary. Are you sure the Gold is electroplate and not immersion? Resolve that and then check the archives for "dark pad" or
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