Electronics Forum | Mon Feb 29 11:58:41 EST 2016 | dustin
When looking at 0402 parts in our old style Europlacer trolleys, the pick up point is in between two part slots. I have heard that there is a manual adjust somewhere on the sides of the trolley that will let you move part into the pick up window. I h
Electronics Forum | Fri Mar 06 10:46:35 EST 2009 | davef
First, we agree with Loco that your QFP is nonwetting, rather than dewetting. Your sceen-shots look like ol' timey SnPb paste recipes. Turn-up the heaterometer dial. Second, on nitrogen: * We kinda think your O2 needs to be around 100ppm with 99.99%
Electronics Forum | Tue Oct 02 07:23:37 EDT 2001 | cath
Has anyone caried out a DPM analysis on these components. I would be interested to know the defect rates and other assoc. placement issues as we have never placed them before. Thanks, cath
Electronics Forum | Thu May 12 00:18:55 EDT 2016 | darby
Sorry for delay - been flat out. Sr - I understand what you are saying. My concern is that combined with the head offsets and variations in pick points (i.e. having to teach feeder positions for very slight amounts like 0.05mm)then you cycle times wi
Electronics Forum | Fri May 23 12:18:59 EDT 2003 | vortex
First off is your CP4 0402 ready? Before we could begin placing 0402's we had to have a vision upgrade. Once you have that or are sure your machine can handle 0402 then you will have to get 8x2 feeders. There may be a way to rig an 8x4 feeder but i'm
Electronics Forum | Thu Jul 20 14:05:59 EDT 2000 | Mike McMonagle
With 0402 components becoming more common today outside of the telecommunications industry, our company is qualifying equipment and processes for an upcoming product incorporating 0402s. Having used 0402s in a previous position, I am planning a DOE o
Electronics Forum | Fri May 23 07:07:39 EDT 2003 | qp1
Please your comments for placing 0402 on CP4? Which are the difficulties to expect and how to threat them? How to adapt the feeders for the smaller interdistance of the tape?? Thanks
Electronics Forum | Thu Apr 28 15:56:44 EDT 2005 | stepheniii
Hopefully it is just the part data a little bit off. But if that doesn't help, make sure the thickness sensor is calibrated bang on. And do the nozzle height adjustment. What are your nozzles and filters like, as far as being clean goes? I've put dow
Electronics Forum | Fri May 06 08:47:05 EDT 2016 | davef
You're correct. This design will have a record amount of 0402 rework for tombstoning and misalignments. Suggest that the pads on each end of all components be the same size in order to balance wetting forces during reflow.
Electronics Forum | Mon Apr 17 22:54:51 EDT 2006 | Darby
Short answer is - not really. According to the manual in Chapter 1-5 Supply devices (Feeders) overview "There are also available an 8mm tape feeder which handles 1005(0402) square chips". I have never seen one. The problem is that even an H nozzle is
