Electronics Forum: accuracy testing (Page 7 of 10)

Statistical Prerequisites For Valid Cp / Cpk Calculations

Electronics Forum | Thu Mar 06 12:15:00 EST 2003 | msivigny

Hello Dave, First you must make sure your measurement system is calibrated for accuracy, repeatability and reproducibility. We perform a standard GR&R Study on our CmController system on a regular basis to ensure that the system itself is capable to

Underfill Equipment

Electronics Forum | Mon Jul 21 09:34:54 EDT 2003 | caldon

A machine for serious concideration MRSI 175uf Features: -High-throughput Underfill -Parallel Processing Conveyor Lanes -Linear Positive Displacement Pump -Total Process Thermal Control -Intuitive Graphical User Interface - Windows NT -Advanced

Glass Plate for machine Calibration

Electronics Forum | Tue Aug 19 09:23:18 EDT 2003 | caldon

FUJI DUDE- You can purchase a Kit from IPC for verifying machine acceptability. IPC-9850 full kit with Components and boards, and such will set you back around $26,250 (member price). Just the glass board alone will cost you $3,800 (member Price).Thi

High complex board manufacturing

Electronics Forum | Mon Mar 02 04:20:27 EST 2009 | emmanueldavid

Glossy/Matte & Plating). 2. Select Solder Paste according to Your Customer or In-House Specifications which is compatible for expected Process. 3. Use Chemical Etch / Electro Polished Stencil with proper Aspect Ratios (AR=>1.5) & Area Ratios(ArR=>0.6

Etch strain gauge in copper layer to measure deformations during press process [How to?]

Electronics Forum | Mon May 26 03:27:00 EDT 2014 | julianf

Thanks for your reply Sarason. I'm aware now that my goals seem very ambitious and infeasible. Let me formulate my problem in an different way that might be more realistic. Is it possible to measure a DIFFERENCE in strain between top and middle la

SMT line validation if AOI available

Electronics Forum | Fri May 29 04:37:24 EDT 2015 | buckcho

Hi Alexei, We have met in the past ( simona - > PCB ) Thank you for this input, I might consider > it ! Hello, validating a whole line can be tricky. I can advise you to validate each machine (not the transports) and then put them together in one

problems picking up PANASONIC ERJ-12ZYJ203U resister.

Electronics Forum | Tue Feb 07 09:54:25 EST 2017 | rgduval

Are you having any issues with other ERJ series resistors from Panasonic? Any other 2010 resistors? There is, very likely, something specific to this part/package/packaging that is causing your problems. Things to check: -Identify where the issue

Whats new in 3D AOI?

Electronics Forum | Thu Apr 27 08:42:22 EDT 2017 | pvasquez

Hello M. We are a low volume high mix manufacturer with a total of 7 Mirtec AOI machines including a new MV-6 OMNI 3D system. I am very pleased with this machine! When we did our 3D AOI research, my team narrowed the field down to 2 vendors, Mirt

Re: how to overcome tolerance in automatic alignment

Electronics Forum | Fri Sep 10 09:03:52 EDT 1999 | ScottM

| | hi, i m college student. i m currently doing my Final year project in PCB drilling. the main task is to design auto feeder which allign the PCB properly in position before drilling take place. the close tolerance becomes a big problem to the prec

How to run SMT production with low defects

Electronics Forum | Thu Aug 15 15:44:46 EDT 2002 | dragonslayr

You can't control what you don't measure. You have provided very little detail other than post reflow costs are high. What defects are attributed to problems experienced prior to reflow? Are these random or recurring defects? You will need to put ea


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