Electronics Forum | Thu Sep 19 21:46:01 EDT 2002 | scottefiske
In the past year I was responsible for developing and leading a Team focused on AOI, Evaluation, Justification, and with a full ROI required, supporting a HMLV manufacturing environment. If you have in these economic times the additional resources t
Electronics Forum | Mon Apr 04 11:46:20 EDT 2011 | frcdave
I was thinking the same thing. Try turning off your anchors and look at the size of your search and % match you have set. if you are concerned about not catching missing components, try training a negative template.
Electronics Forum | Fri Apr 01 14:51:23 EDT 2011 | jaimebc
We are currently experiencing a high rate of false calls on our 0402 chips. Resistors for the most part. Has anybody out there found a setting where this false calls are minimized? We are using top red light, pattern inspection,color inspection ( wh
Electronics Forum | Fri Apr 01 18:32:51 EDT 2011 | frcdave
Dback, Some questions for you: 1. Are you using the red light configuration for better contrast on the 0402 parts? 2. Is your system fitted with both low and High Magnification cameras? Have you spoken with the guys at YESTech? Their phone support i
Electronics Forum | Mon Apr 04 11:27:07 EDT 2011 | fishingfool
Dback, Most likely shouldn't have color inspection on. Using red light colors will look the same so you gain nothing by using this. What exactly are you getting as false calls? Sounds like you have lots of things going on in this type of inspect
Electronics Forum | Tue Oct 21 11:19:30 EDT 2008 | ljohnson
Sounds to me like your printer not releasing paste now and again. How can you be sure that you are not getting print skips. Are you using any kind on AOI?
Electronics Forum | Thu Jan 04 20:31:21 EST 2007 | Ben_T
Have you thought about an AOI system? With the system we have where I work, I'm able to run queries that'll tell me DPMO, yield, and pass/fail rates on a board level, part level, and opportunity level. Furthermore, this data can be broken down to see
Electronics Forum | Tue Oct 21 11:42:04 EDT 2008 | arosario
Hi Shooter, we're not using AOI but we do every 30 minutes sampling Inspection on the board and we're not seeing insufficient paste deposit so far since we started. But I agree with you that seemed my printer is not printing consistent amount of pa
Electronics Forum | Mon Jan 08 03:47:47 EST 2007 | tk380514
as someone had said before, check you stencil and have it redesigned. I design our stencils for my factory and have inproved quality in BGA , QFP and 0603 case sizes. we did have 1 prototype series that used 0403 chips btu we had brand new feeders an
Electronics Forum | Fri Jan 05 12:17:31 EST 2007 | Cmiller
Our first pass yield across all our products is above 95% but we include anything that does not meet IPC standards. Probably 75% of our failures are not electrical. AOI is a great tool to get a consistent measure of your process. I dont know how anyo
