Electronics Forum | Fri Jun 07 14:05:39 EDT 2024 | davidk
I wanted to open a discussion and ask about opinion: What is a normal result of the inspection of an AOI? How many falls calls per component /opportunity is bad/normal/good? How many defects per component/opportunity is bad/normal/good? What is goo
Electronics Forum | Wed Jun 19 14:40:58 EDT 2024 | davidk
Hello Carl, Thank you for your comment Obviously, we are evolving and debugging our test to get the best results ("no escapes no false calls") :) and using a combination of 3D and 2D tests. With the previous AOI, we had a much higher false call rate,
Electronics Forum | Wed Jun 19 15:28:58 EDT 2024 | davidk
Hi Tom, Thank you for your comment 75% FPY is also our target, cause we gonna have the AOIs in the SMT line. So you would expect more opportunities? I didn´t notice but there are not so many components with high opportunity rate. (the average numbe
Electronics Forum | Thu Jun 13 08:10:51 EDT 2024 | carl_p
You would need to be more specific on the AOI in question here. 2D, 3D features will also have a big impact. Are you constantly evolving or updating the models to improve the situation or going from just the base program as if low volume it can be a
Electronics Forum | Thu Jun 13 14:41:40 EDT 2024 | tommy_magyar
Hi David, In one of my previous jobs I worked as an AOI/AXI process engineer and we had a set target of 75% FPY. This means that 75% of the boards at IPC Class 3 standards would not have a single false call. This also means you would need to set y
Electronics Forum | Fri May 03 21:56:31 EDT 2019 | pcbindex1
How to improve the rate of defect of automotive PCB?
Electronics Forum | Sat May 04 12:43:48 EDT 2019 | davef
ISO/TS 16949 is a quality management system for automotive sector
Electronics Forum | Mon Sep 16 13:29:37 EDT 2013 | larrygroves
a lot depends on the age and type of equipment you are using . Older equipment can have a lot of problems with smaller parts. If all is well with your feeders and machine you should expect something like 99.8 to 99.9 percent. some parts will be ident
Electronics Forum | Fri Feb 11 02:42:17 EST 2005 | marakas
Thank you very much for your answer. We had: 1- 224 pins, size 19*19 mm, pitch 0.8 mm 4- 48 pins, size 11*7 mm, pitch 0.75 mm 1- 160 pins, size 15*15 mm, pitch 1 mm 1- 196 pins, size 15*15 mm, pitch 1 mm How many defects I should expect with th
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