Electronics Forum | Tue Jun 10 14:04:08 EDT 2014 | rway
Perhaps neither. I assume the part is T&R. It's flipping inside the tape before placement. I don't know how the nozzle could be doing it. There could be excess vibration on the feeder which is causing the part to flip. Just a thought.
Electronics Forum | Sat Jun 07 23:37:34 EDT 2014 | demzvill
Hello all Good morning. I just want to ask with you guys about the problem that we always experienced in our production. We could not get our target ppm due. to inverted placement of chip resistor. We are using 2000 series juki mounter and cf03hp j
Electronics Forum | Fri Jul 29 19:21:59 EDT 2005 | Jason Fullerton
Definitely feeder related - we get it all the time on those package parts. If you can, slow the tact of the feeder advance a bit (if it's on T&R). We also don't catch it at placement, but at pre-reflow visual or AOI.
Electronics Forum | Wed Jul 27 22:43:10 EDT 2005 | crishan
Hi all, Having a major problem with an IC being placed upside down. We pick up the fault at AOI. We have check several reels and the component is not placed upside down by the supplier. Where should I start looking; 1. Are we using an incorrect fee
Electronics Forum | Thu Jul 28 03:49:06 EDT 2005 | aj
Are you seeing many of the components in the reject bin of the machine? If it is feeder related I would expect to see some rejects unless the part is jumping and landing in the same orientation i.e. 3 leads on same side everytime! Other than that I
Electronics Forum | Tue Jun 10 12:53:56 EDT 2014 | demzvill
Yes it will electrically but on the appearance side it is no good. Does it have something to do with the feeder or the nozzle?
Electronics Forum | Wed Jun 11 22:55:12 EDT 2014 | demzvill
Thank you for all the suggestions.I will conduct evaluation bbase on our discussions God bless
Electronics Forum | Tue Jun 10 11:51:15 EDT 2014 | rway
Your target ppm in on the Juki machine a take it. So it's rejecting these parts due to the inversion? Any way to disable this. A right-side down resistor is not ideal, but it will certainly work electrically. Reese
Electronics Forum | Tue Jun 10 17:13:44 EDT 2014 | grauen06
I have seen this on a MyDATA machine and we had to slow our feed rate of the feeder down. That seemed to do the trick. We concluded the carrier tape was too large for the part, but our vendor didn't really seem to care.
Electronics Forum | Tue Jun 10 23:06:28 EDT 2014 | demzvill
In our assumption also, nozzle is magnetized because the chip termination is made up of alloy so possibilty that when there is excessive contact between two metals there magnetic field produce, so during z up chip is magnetize on the nozzle causing i
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