Electronics Forum | Wed Jan 24 21:29:43 EST 2007 | davef
Board fabricators commonly use Barco AOI to inspect film. The AccuMatch compares pixel-to-pixel of the Gerber data to the image seen by the AOI camera. It's slower than design rule checking, but has definite advantages [like lower falsing]. Unfortu
Electronics Forum | Thu Jan 25 04:55:08 EST 2007 | greg york
Strange as we have had huge problems with Silver in Many different Assembly houses. Mainly with Nitric Acid based Silvers causing blow holes, non wetting and even the Nitric etching away the tracks on fine boards. It has been one of the main problem
Electronics Forum | Fri Feb 02 12:37:16 EST 2007 | Derek W
We've had the same issues with silver. We also ran into shelf life issues but that's specific to our business. We've moved to ENIG with good success, our board vendors were also very happy to move away from silver though I'm not sure why. As long as
Electronics Forum | Sun Feb 25 03:49:17 EST 2007 | frank63
Dear SMT community, thank you all for your comments and valuable hints. I am newcomer here and impressed about the feedbacks! We have made a new lot of 25 pcb with total 200pcs of (leaded) BGA, whith slightly higher temperature profiles ~210�C
Electronics Forum | Sun Feb 25 11:59:33 EST 2007 | stepheniii
Just make sure you keep the half done assemblies in dry storage or do the second reflow within the time dictated by the BGAs MSD rating level. Maybe this time you did the second side with a very short wait because you were anxious about the results
Electronics Forum | Wed Jan 24 22:38:45 EST 2007 | electrovert
Hello, My first time post up here. I have a problem with thermo runaway on upper zone #5 on the Omni 10 Electrovert. We changed the thermocouple #5 but the problem came back up. We swapped Sensoray board 8 and 9, swapped board #3 (T/C interface boar
Electronics Forum | Thu Jan 25 09:45:54 EST 2007 | SWAG
You might consider installing a noise kit as it sounds like you've tried almost everything else. Electrical interference on these machines causes erratic problems, especially as they get older. I would call Speedline tech. and see if they think the
Electronics Forum | Wed Jan 31 17:57:07 EST 2007 | blnorman
We've had multiple issues with non-wetting components. You say only one part is not wetting? Profile won't be the culprit, if so you would have more part issues. We've used SnPb with lead-free parts for some time now, no issues. The issues we had
Electronics Forum | Mon Jan 29 07:45:06 EST 2007 | tmoss
HI, I have ran Siemens for 7 years but just started with a company that purchased a new Juki 2055-RE and a new 2060... These machines have some real nice features on them that I love... Though not as fast as your turrent head machines, I believe the
Electronics Forum | Mon Jan 29 14:01:41 EST 2007 | realchunks
Well, they're all "HE"'s, which may be part of the problem (good one Dave) The customer "thinks" there may be a problem but has no actual proof. The part in question is a lug terminal. It's 0.145" by 0.175" and 0.020" thick. They couldn't "see" a
