Electronics Forum | Tue Apr 03 01:37:54 EDT 2001 | philipreyes
60% 36% 0f ball area >36% Class2 Accept Reject 45% of ball diameter >45% 20.25% of ball area >20.25% Class3 Accept
Electronics Forum | Thu Oct 18 11:08:22 EDT 2012 | scottp
Since we follow IPC Class III, I've done experiments turning N2 on and off and measuring void level with both SnPb and SAC305 solder. In both cases there was a statistically significant, measurable increase in voids with N2, but it wasn't significan
Electronics Forum | Tue Jul 23 11:19:40 EDT 2002 | slthomas
I have worked with Radial II's, III's, and V's. Every one had a verifier, but none of them ever got used, primarily because of the false failures.
Electronics Forum | Sun Aug 26 12:40:59 EDT 2001 | stefwitt
I would like to enter the discussion by tossing some numbers in. First of all I don�t like the 3 Sigma value. 3 Sigma are 2000 defects per mio. if I remember correctly. This means, if you have 200 components on the board, then every 10 boards have on
Electronics Forum | Tue Mar 13 09:38:05 EDT 2007 | slthomas
Do you already have machines or are you shopping? If you're shopping and looking at used machines from Universal, get AT LEAST a Radial Lead III and preferably a V or VIII. The Radial Lead II is well past it's prime, especially for someone that's jus
Electronics Forum | Wed Apr 09 12:18:37 EDT 2003 | MA/NY DDave
Hi This is an excellent question or research project. I would call the IPC and find out if anyone has already done this work. My guess is that Class III should be slightly better, yet considering the application difference where Class III is used
Electronics Forum | Wed Apr 09 14:09:54 EDT 2003 | davef
MA/NY DDave, I'll take your money. I'm betting on the Class II, whatever that is, because: * Solder is the same. * Board is the same from a fabrication and probably materials standpoint. * Components are the same. * Processing is the same. ... but
Electronics Forum | Tue Apr 08 12:38:12 EDT 2003 | Denise
I'm looking for comparison data on MTBF for solder joints meeting IPC Class II vs Class III.
Electronics Forum | Wed Dec 09 05:01:33 EST 2015 | luki
Hello, I am a new user of the machine CSM84VZ III and learn to program. After formatting a disc machine lost all settings(I did not know that the settings are on the disc), most of which I have already set. Now I have a problem such that when I try t
Electronics Forum | Wed Apr 09 09:36:18 EDT 2003 | iman
what r your test running parameters? what end-application?
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