Electronics Forum: pareto (Page 1 of 2)


Electronics Forum | Thu Sep 11 23:54:35 EDT 2003 | El

Does anyone know how to set-up MS excel to generate PPM data? i.e pareto chart, defects report, etc

Re: Process Characterisation

Electronics Forum | Wed Nov 29 21:05:33 EST 2000 | Michael Parker

Chris- you did not mention some details regarding your processes and volumes. Are you using SMT, PTH, mixed? Machinery involved (automatic vs. manual). Volumes - same 4-20 assemblies, at what periodic rate? Are you doing R&D prototypes only? High or

Process Characterisation

Electronics Forum | Wed Nov 29 06:38:18 EST 2000 | Chris May

Dear People, Can anyone point me in the right direction. I am involved in manufacturing low volume (batches of 4-20) pcb's. I have been investigating Process Characterisation ref EIA/JEDEC PUBLICATION 132. For such a low volume scenario, has anyo

OT: Wavesolder Process Engineer Needed

Electronics Forum | Thu Jul 10 15:15:17 EDT 2008 | patrickbruneel

I have a tendency to agree with CK Experience and accomplishments in wave soldering are more valuable then the degree. Remember wave soldering is not taught in school although it is a vital process in the electronics assembly. The quality and relia

Key Production Indicators

Electronics Forum | Thu Jul 18 12:17:30 EDT 2002 | pjc

Machine efficiency is a big one. Placement and auto-insertion machines should have the production rate for a given product recorded in the Routing, Time Standard or Work Instruction. If a given board has a tact time of say 1 minute and you ran 1,000


Electronics Forum | Tue Oct 22 12:43:05 EDT 2002 | Brian W.

I think you need to define what it is you are looking for. Changeover time, Efficiency and measuring run time to your quaoted time are important, as is quality. You need to look at all of these things to determine the "health". It does you no good

wave soldering and solder bridge

Electronics Forum | Mon Dec 17 11:55:08 EST 2007 | chef

I recently had the same problems, solder bridges on every thing I made, different customers boards, etc. I wave with no-clean flux. As I sorted out problems (pin holes, blow holes, splatter, etc.) I found a lot of variable factors. I changed flux,

Re: AQL of pcb assemblies

Electronics Forum | Wed Jun 14 20:05:51 EDT 2000 | Raeto Zryd

Hi Jason, Zero defect is the only acceptable quality!! U need to ask yourself how capable is your process and how well is you quality system set up. No point in setting goals unatainable or beeing forced upon by management if the root problems of th

performance improvement

Electronics Forum | Tue Jun 18 05:40:38 EDT 2002 | ianchan

Hi mates, finally! some sense to all this, so this bloke is concerned about "ppm = quality" variations... looking back through all the muck in this thread, last posting before the s**t hit the ceiling was: ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Date: June

Tombstone defect

Electronics Forum | Wed May 21 12:55:35 EDT 2003 | Zhenya

Several things for your reference: 1. Starting with data collection: - Have you done a measle chart to illustrate the pattern of the defect? - Have you checked the corelation between shift/time and defects rate? - How about a pareto chart? - Do

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