Electronics Forum: hidden joints (Page 1 of 2)

Wrinkles on soldered BGA ball joints

Electronics Forum | Fri Oct 07 09:19:54 EDT 2005 | Kris

the direction in which the solders cool in a BGA are also different than the rest of the boards as the joints " hidden" to ambient. Refer to an analogus phenomenon in the cookson application note. http://www.cooksonsemi.com/pdfs/How%20&%20Why%20Bum

CM vs Customer Liability for Defective Product

Electronics Forum | Mon Jul 31 18:17:03 EDT 2023 | emeto

This is more lawyer stuff than engineering. In occasion like this one, it is probably time to open conversation around testing and hidden joints checks. In 21st century to perform only visual inspection is not a serious process, unless it is a very s

AOI

Electronics Forum | Fri Dec 03 12:01:14 EST 2004 | mruzicka

AOI (automatic optical inspection) is not capable to detect hidden joints (BGA, J-leads,...) defects. For that you will need X-Ray (AXI = Automated X-ray Inspection). Look @ http://www.agilent.com, they have both systems. It is usual that PWB manufac

AOI systems

Electronics Forum | Fri Mar 30 14:43:55 EST 2001 | larryk

Phil, The AOI will do a excellent job doing what you said you are looking for. We justified ours on the same requirements as you stated. Keep in mind that the machine may not "see" everything, there are some hidden joints that you will still need to

AOI ( automated optical inspection) benchmark

Electronics Forum | Mon Feb 18 17:27:03 EST 2002 | hgwells

Agilent has a great article on determining whether automated optical inspection (AOI) or automated x-ray inspection (AXI) is right for you. It's a PDF file that can found here: http://www.ate.agilent.com/EMT/LIBRARY/X-RAY/DOCS/59883661en.pdf To sum

Which AOI method is best?

Electronics Forum | Mon May 07 09:46:15 EDT 2001 | orbotech

3D imaging refers to the acquisition of images from multiple perspectives using, preferably, multiple sources of illumination, while 2D imaging refers to the acquisition of an image from one perspective. An AOI system with 3D imaging is able to acq

Why does everyone want to x-ray BGA?

Electronics Forum | Thu Apr 16 21:33:25 EDT 1998 | Steve Gregory

Hello Ya'll, I've got what may be a silly question, but why does it seem so important to everybody that you have x-ray capability if you're thinking about doing BGA? I know what most people will tell me; "Steve, that's a pretty silly question

Re: Why does everyone want to x-ray BGA?

Electronics Forum | Mon Apr 20 13:52:19 EDT 1998 | G.Wenker

| Hello Ya'll, | I've got what may be a silly question, but why does it seem so important to everybody that you have x-ray capability if you're thinking about doing BGA? | I know what most people will tell me; "Steve, that's a pretty silly qu

Why does everyone want to x-ray BGA?

Electronics Forum | Thu Apr 16 21:30:59 EDT 1998 | Steve Gregory

Hello Ya'll, I've got what may be a silly question, but why does it seem so important to everybody that you have x-ray capability if you're thinking about doing BGA? I know what most people will tell me; "Steve, that's a pretty silly question

Re: Why does everyone want to x-ray BGA?

Electronics Forum | Wed Jun 30 20:09:07 EDT 1999 | Mark

| Hello Ya'll, | I've got what may be a silly question, but why does it seem so important to everybody that you have x-ray capability if you're thinking about doing BGA? | I know what most people will tell me; "Steve, that's a pretty silly qu

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