Electronics Forum: accuracy testing (Page 1 of 10)

Placement accuracy

Electronics Forum | Wed Feb 07 11:19:23 EST 2001 | CAL

Precision parts and precision boards are nice for the initial evaluation but are costly for routine monthly accuracy tests. I know for a fact all the Siemens machines leaving Germany are evaluated with precision parts and board and placements are eva

Placement accuracy

Electronics Forum | Wed Feb 07 20:57:31 EST 2001 | Kyle

What are you placing on this equipment? If you are placing flip chips, you need to have a glass plate test system to verify your machine is accurate and repeatable. If you purchase new equipment and plan to place flip chips or ultra fine pitch, it

Adhesive Spray for testing and trim P&P

Electronics Forum | Mon May 14 09:35:21 EDT 2018 | directx995

Hello everyone, A few days ago I design one special kind of PCB for testing accuracy of our Pick and Place machines. (for trimming, calibrating, NPI etc.) I am looking for adhesive spray, to apply it on PCB (at the moment I'm using double sided tape

Re: CPk

Electronics Forum | Thu Dec 09 15:03:39 EST 1999 | Andy Yates

I would suggest that as well as repeatedly inspecting the same board and looking at the standard deviations of the measurements, you should perform some form of accuracy test either by measuring a known glass plate or by inspecting a board at 0 and 1

Pick and Place Machine Validation

Electronics Forum | Thu Mar 10 23:26:46 EST 2005 | timekey

Of course a new machine out of the box should perform at a realistic Sigma level and it's not unfair to hold a machine manufacturer true to their claims. However, even if a new machine does meet the criteria on day 1, the numbers will be constantly c

CP6 Maintenance

Electronics Forum | Fri Mar 31 16:02:35 EST 2006 | daxman

I'm not sure if we are on the same page here....maybe i'm lost in the terminology. We are pulling the entire placing head. The Windmill, the shaft, the clutches...the entire thing. I'm not sure if this is what you mean by, "dropping the clutches"

Placement Accuracy and CPK

Electronics Forum | Tue May 22 16:07:31 EDT 2007 | francitj

We are doing a field study to test the placement accuracy and calculate cpk of some machines in our plant. From previous readings, it is suggested that you buy glass board kits from Accuspec, Topline, etc. Is that the easiest/cheapest way to go abo

QFN32 Vision Type on Fuji FIP3???

Electronics Forum | Wed Mar 22 03:36:05 EST 2006 | aj

Hi, Thats the way I have been placing it but we have seen a few misplacements failing in test and I am trying to improve the placement accuracy and consistency by locating the leads/pads . aj

Simulation of Placement Cpk on Paste

Electronics Forum | Thu Nov 07 01:47:37 EST 2002 | Bach Huss

Hi all, I plan to measure the placement repeatability and accuracy. Is there any work done to simulate the paste effects on test board without using paste (My measurement equipment is a back lighting equipment). I saw someone placing components on

Measure humidity for PCB

Electronics Forum | Tue Apr 13 14:49:15 EDT 2010 | davef

90%) from the sample, and the bake time and temperature specified herein are minimums. To improve test accuracy, or to prevent heat damage, other bake parameters may be AABUS. 2 Applicable Documents IPC-QL-653 Certification of Facilities that Inspect

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