Electronics Forum | Fri Feb 18 11:31:05 EST 2005 | carterhoward
I agree with stand-alone as well. We're a CM and have three AOI's, we keep them all stand-alone. We use them for paste inspection, first articles off SMT equipment, QC articles from SMT, hand assembly QC, TH first article and TH QC. We treat AOI as
Electronics Forum | Tue Mar 01 10:55:07 EST 2005 | spot
A lot depends on the complexity of the board/process as well as the amount of placements. If the board has few placements and the parts are not smaller that 0805 then doing all the rework after completion is ok. The human eye can only pick out obvi
Electronics Forum | Tue Mar 01 13:51:23 EST 2005 | pjc
pr is 100% correct, can't have visual inspectors touching up for the reason he states. I have always seen that- when in doubt they will always "touch up". Touching up is always a bad thing. Looks like you have some problems that need fixing to elimin
Electronics Forum | Thu Mar 03 11:23:50 EST 2005 | Slow Ride
Generally QC is a different deptpartment than touch-up people. Most touch-up people are just general operators, so to keep their job they always see the solder joint as "not enough". Q.C. people are generally a bit better, but know they may be call
Electronics Forum | Sat Mar 12 23:50:47 EST 2005 | fastek
Marcus- I guess I'm too old school. When I was involved in manufacturing there wasn't any AOI and we got along fine for years without it, (like everyone else). But I can certainly see the benefits of it if you have highly complex boards that are jus
Electronics Forum | Mon Apr 04 18:23:35 EDT 2005 | GS
Solder volumes is very important parameter to keep under control in order to get a good and reliable CCGA solder joint, and an automatic 3D paste volume inspection is strongly recommended practice to use. Questions: - what Column pitch do your CCGA h
Electronics Forum | Wed Apr 13 15:21:25 EDT 2005 | mmjm_1099
Thats called technician syndrome (fine when your there and bad when you walk away). Is someone inspecting the board before reflow? If so make sure they don't touch it and run about 5 boards and see if it's consistent for placement. What type of pro
Electronics Forum | Fri Apr 15 11:16:03 EDT 2005 | HOSS
It's a longshot but.....I have seen low-standoff parts move caused by via's under the part erupting from within internal layers (outgassing). If this is a multilayer PCB and vias are not well plated or pourus, they can and will expand when heated.
Electronics Forum | Wed May 11 22:43:43 EDT 2005 | KEN
Hmm..that gets me thinking. How about lightning rods for SMT equuipment. Actual conversation of customer on plant tour: Customer: "What the hell is that? Is that a 30 foot tall signal tower on that stencil printer?" No. That's our new speedline
Electronics Forum | Wed May 18 03:13:28 EDT 2005 | grantp
Hi, We place BGA, but until now have not used X-Ray inspection, and it would be a good thing to have. Can anyone recommend a low cost X-Ray that would get us by. We don't need something fast, but it should be able to show us clearly voids etc. Reg
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