Electronics Forum | Tue Feb 28 16:35:29 EST 2006 | muse95
Did you verify that the new colour of soldermask was RoHS compliant before you switched? I've heard that many aren't, and that switching colours can sometimes mean moving from one that was compliant to one that is not. We internally decided not to
Electronics Forum | Tue Feb 28 16:10:21 EST 2006 | cmiller
We were also using DBA classic and went to Intuitive about 4 months ago. I think it is a good system but it is also a huge difference from DBA. We picked it for a number of reasons but .NET was a major one. To some extent we are still learning it so
Electronics Forum | Thu Mar 09 00:45:57 EST 2006 | kent_peterson
Fastek will get it done with 2 machine and 2 shifts. 2 shifts would need to place 50,000cph. One CP643 with both device tables set could get it done. Having it panelized in 50's, you would need to print 50 panels a hour so get a auto cleaner on the p
Electronics Forum | Wed Mar 22 01:24:54 EST 2006 | Joseph
Dear all, Referring technical report from Vitronics Soltec, "Pad lifting, fillet lifting and fillet tearing issues in LF soldering". The use of LF solder alloys today has brought about a recurrence of this crack formation, called fillet tearing. The
Electronics Forum | Sat Mar 25 07:25:36 EST 2006 | smartasp
Hi There To answer your question 1 minute at the best. We are using 2 Opal XII and have the optional feeder exchange trolleys, which enables us to setup feeders off line and just exchange the trolleys onto the machines. The changeover can be done i
Electronics Forum | Tue Mar 28 14:49:13 EST 2006 | vickt
As mentioned, there are many ways to achieve a quick changeover. Every manufacturing environment is somewhat different..but here's a few ideas for you to consider 1. If you have lots of feeder space on a machine you can have several simultaneous se
Electronics Forum | Wed Mar 29 18:20:07 EST 2006 | LD
We are also a high mix/low volume OEM and are running Samsung CP45's with quick change carts on both sides of the machine. We currently average 12 minutes of internal changeover time per run with an average of 17 changeovers/day for 2 shifts. We ty
Electronics Forum | Tue May 09 21:53:06 EDT 2006 | KEN
What is your flux delivery system? Tell us a little more....please. I'm assuming ultrasonic. You can try to vary your air knife but if your pin / hole ratios are wrong then it may not help. Run a bare fab. If your problem goes away you may need to
Electronics Forum | Thu Apr 20 13:55:31 EDT 2006 | cyber_wolf
Here is the problem : We have 2 AP25 printers with dedicated tooling. After we run side one boards through reflow, we get some warpage in our boards occasionally.(Sometimes we get a lot of warp depending on the geometries of the substrate) When the
Electronics Forum | Fri May 12 11:40:25 EDT 2006 | solderiron
If you can change to SN100C do it. The nickel prevents the high tin content from eating away at the metals on the tips. Similar to what the Lead did in 63/37 alloys. This Koki crap is just that, crap. 99% tin??? Thats what is causing the problem peop
