Electronics Forum | Mon Jun 14 13:51:11 EDT 1999 | Chrys Shea
| | Dear All, | | | | We are having a big debate over what is the industry standard in DPPM on the wave sodlering process. is a DPPM of about 800 satisfactory. As per our big bosses it should not be more than 50 DPPM. Is the figure realistic. We
Electronics Forum | Thu Nov 16 16:20:23 EST 2000 | bkringen
We are a manufacturing facility of ruggedized offroad electronic control systems. We are looking for industry standards/benchmarks we can use to compare with other manufacturers with regards to our DPMO rate for our SMT process. We would like to kno
Electronics Forum | Tue Oct 20 06:46:26 EDT 2009 | davef
A couple ideas are: * Search the fine SMTnet Archives. Use search terms such as: ppm or dpmo or *7912 or *9261 * Bob Willis runs a PPM Monitoring project that compiles data from industry. Look here: http://www.bobwillis.co.uk/ppm/asp/Monthly.asp We
Electronics Forum | Wed Jan 28 10:56:31 EST 2004 | russ
the reason you don't want to use PPM is exactly the reason you need to. You cannot compare a square 1" block to a multi faceted custom machine part. In SMT assembly you will usually find that all 0603 and larger discreetes,25mil pitch, etc. are pro
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 | Mon Mar 01 09:14:00 EST 1999 | Jules Winfield
| I'm trying to get a feel for what the industry is doing with regards to collecting assembly defect data in the SMT/PWA process. Is it sampling or 100%? What are the points within the process where critical assembly defect data is collected. We run
Electronics Forum | Thu Oct 29 14:54:26 EDT 2020 | emeto
The best way to measure is by money made(quality product and minimal rework). I worked for a company that asked me to achieve building 100 boards/week for an assembly. A year later they were unhappy that we don't hit 150 boards/day of the same board
Electronics Forum | Tue Sep 21 17:14:44 EDT 1999 | Robert Steltman
Does anyone have any figures on what % extra compnents should be supplied on chip components for a particular product build. Typicaly there is wastage due to dropout in loading, 1st board build and machine rejections. Is there any industry standard t
Electronics Forum | Thu Apr 29 07:21:00 EDT 2004 | Claude_Couture
Depends how much money you have in your budget. You have to break down your assembly into the different components and figure out what can be done by machine and what can't. Then search for machine that can do the jobs. There are consultant firms tha
Electronics Forum | Mon Apr 25 11:24:31 EDT 2005 | Daan Terstegge
I have a question about inspection, touch-up, and how far you need to go to get a product that meets the required IPC-spec. According to some reports (i.e. "New Study Reveals Component Defect Levels" by Stig Oresjo of Agilent) the average defect leve
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