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 | Mon Apr 16 20:04:24 EDT 2012 | hegemon
6 or 7 replies and 3 *flamer* ratings already? And here I thought this was good info above...
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 | Fri Jan 24 16:54:24 EST 2014 | davef
Yeh, I worked at Wang Computer factory in a reclaimed fabric mill with wooden floors. One of the causes of grapping is flux loss. In their paper, Briggs and Laskey talk about flux loss due to spreading and suggest: * Graping is much less prevalent i
Electronics Forum | Thu Feb 13 03:49:15 EST 2014 | jlawson
Yes all above is correct, as solder deposits get smaller and mesh T4+ , actual metal to air contact surface area increases , say in contrast to T3, add to this less flux , and flux running away from the joint, re-oxidation and what flux is left, can
Electronics Forum | Fri Jan 24 09:52:08 EST 2014 | davem
Hi Guys, So I work for a small contract manufacturer which caters mainly to the defense sector. As such, our customers haven't (yet) had a great need to incorporate 01005's into their designs. Looking forward, we decided to "take the plunge" and dia
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
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