Electronics Forum | Wed Feb 23 16:25:33 EST 2000 | John
We are using a glue and wave solder process for primarily chip components. Our products do not use any fine pitch components. What would an acceptable benchmark for the placement defect rate be? 50 DPMO? 100 DPMO? 200 DPMO? Thanks in advance,
Electronics Forum | Wed Feb 23 16:25:33 EST 2000 | John
We are using a glue and wave solder process for primarily chip components. Our products do not use any fine pitch components. What would an acceptable benchmark for the placement defect rate be? 50 DPMO? 100 DPMO? 200 DPMO? Thanks in advance,
Electronics Forum | Fri Jan 20 09:28:54 EST 2012 | dmiller
3-5% is extremely high. Think of that in terms of DPMO. 5% fallout would be a 50000 DPMO. That's not acceptable for most people.
Electronics Forum | Fri Apr 06 17:06:43 EDT 2012 | joeherz
Hello, We have been tracking our SMT quality levels using DPMO which has been a great way to monitor our process with a huge variation in products we build (we're an low vol/high mix EMS provider). We are now looking at implementing the same scheme
Electronics Forum | Tue Mar 30 22:19:02 EST 1999 | dean
| Does any have any reports on competive Component PPM levels for world class manufacturers ?? I would also like to get any information on the fault spectrum for component mounting. | | Generally, it is accepted that world class is below 100 DPMO (
Electronics Forum | Tue Oct 21 10:24:54 EDT 2003 | russ
Whoever established the PPM rates should tell you what it is covering (solder joints/assemblies) PPM is nothing more than a ratio. Determining quality levels is really up to you/company and how you want to measure your quality. This can be anything
Electronics Forum | Tue Oct 10 08:51:26 EDT 2000 | John
Thanks for the responses, and I tend to agree. I would much rather go through a more structured continuous improvment process (set goals, meet them, set new goals and so on). Our company is rather small and made the jump from all through hole to mi
Electronics Forum | Sun Oct 28 22:10:09 EST 2001 | ianchan
Hi Mr Parker, I sent u an email cuppa days back, accepting your kind offer to help "wandering-souls" like us, by your sharing Excel spreadsheet formats, depicting DPMO/PPM graphical calculations, with us. I was patiently awaiting your reply to my e
Electronics Forum | Mon Oct 25 15:45:11 EDT 1999 | Dave F
Joe: Lemme see, you�re talking about controlling your manufacturing process within 4.6 defects per 100 opportunities or a 4,600 dpmo rate, a cumulative 99.95 acceptance rate, or a �2 sigma process, right? So, it�s fairly basic stuff, eh? First, yo
Electronics Forum | Wed Dec 07 08:57:19 EST 2011 | edmaya33
5K with perform Head is amazing.You just need to make sure that during debug mode, the score should be 90%. Polarity, position, bridge, flip/tombstone/billboard, present/absent and solder condition ( and even OCR/OCV )is remarkable. Acceptance level
