Electronics Forum | Wed Oct 10 11:20:31 EDT 2007 | jdengler
Do all 0201's reject at the same rate? If even 1 P/N has a lower reject rate this can point towards a feeder problem. I have had a similar problem on a CP-IV-2 with 0402's that was caused by feeders. If all reject at the same rate it can be the PD o
Electronics Forum | Wed Oct 10 10:35:43 EDT 2007 | cyber_wolf
We are using the tapered nozzles.
Electronics Forum | Wed Oct 10 11:11:22 EDT 2007 | chrisgriffin
Make sure the lights are clean and bright. Are you running at 100% speed?
Electronics Forum | Wed Oct 10 08:13:03 EDT 2007 | cyber_wolf
Hi, What is the expected reject rate for capacitors on a CP643 machine. I estimate that we are dumping around 1 in 20 on average. I have played around with lighting levels,vision types etc. Nozzles are in mint condition. Can anyone offer any advice
Electronics Forum | Thu Oct 11 06:36:57 EDT 2007 | cyber_wolf
Feeder is brand new. (Checked cal. even though it was new) Lighting is good. Machine is in perfect cal. Nozzles are brand spankin new from Fuji. I was able to lower the reject rate considerably by playing with the offset and gain. I am placing caps
Electronics Forum | Wed Oct 10 09:42:02 EDT 2007 | fredc
Hello Sr.Tech, There have been two types of nozzles made by Fuji for 0201's one was a 1mm tapered to .4mm and the other has a straight .4mm tube. Has one superceded the other and if you have used both types, did one work better than the other? Asking
Electronics Forum | Tue Dec 07 13:40:25 EST 1999 | Tim
The company I represent provides electronic manufacturing services. Some of my customers ask that we ship their boards "un-tested". By un-tested I mean we build them, visually inspect them and out they go. I find that on un-tested boards, it's not
Electronics Forum | Wed Sep 18 15:41:59 EDT 2013 | cbeneat
For 0402's, if the operator is paying attention, our equipment Panasonic CM 402/602/NPM's run at about .001%. Again this is dependent on an operator that pays attention to the fail rate. We usually don't have too many problems with 0402's, LED's ar
Electronics Forum | Wed Dec 08 18:12:57 EST 1999 | Dave F
Well said Sotty!!!
Electronics Forum | Sat Jun 26 02:32:32 EDT 2010 | prinsisgarcee
how do i calculate false call rate? i got this equation = [over reject / (total solder joints + components) ] * 1000000 and i got a table which shows data like number of solder joints, components on panel, and number of false call, and the false
