Electronics Forum | Fri Jun 03 05:38:54 EDT 2011 | grahamcooper22
Ideally the MSL should be recorded on the label on the DRY PACK that you receive the devices in....that's the protocol the device manufacturers / distributors should use to help your goods in and shop floor personnel know which are/are not moisture
Electronics Forum | Thu Jun 23 23:58:03 EDT 2011 | jamessunderland
Just want to ask. What is the effect of dull gold surface on solderability? When I made a test run with several pieces containing dull gold defect on the pad(of varying levels), I found that components can still stick to the pad with good amount o
Electronics Forum | Mon Aug 22 06:30:59 EDT 2011 | janz
very often toes on the QFP packages are exposed to base material and during time they oxidize. That is why you can have problem with solder fillet. Most important is heel fillet. Regarding your misalignment of IC if this is repeatable check your pl
Electronics Forum | Fri Sep 02 16:22:37 EDT 2011 | ttaubert
Are there SMT mechanical components like that could be used for orientating PCB-level optics on the board and do not require holes in the board? Their final position would solely depend on the reflow. A height of 1/8" would be sufficient. I was con
Electronics Forum | Sat Feb 04 23:09:00 EST 2012 | jorge_quijano
Thanks for the info, I will check tolerances and the quadaling option. As an update I ran this past week and machine was arround 5% for a very small lot size, for a larger size lot it was less than 2%, Now I know it still higher than our newest machi
Electronics Forum | Thu Mar 01 09:09:04 EST 2012 | cbeneat
We bought two of the nozzles from count on tools. The jury is still out. The vacuum thick errors or the lights sticking at this time has dropped, I reduced the air for the vacuum break to a more reasonable level. There is still some work to do on
Electronics Forum | Mon Mar 05 13:29:00 EST 2012 | acsscott
Anyone have any input on this? I have checked to make sure all the component I am trying to pick up at the same time have the same camera, light levels, and detection type. I can't figure out why it picks 4 parts up, places them, then comes back fo
Electronics Forum | Tue Mar 20 19:26:12 EDT 2012 | hegemon
We have produced good results on our ACE machines. We keep 2 of them constantly busy, one for regular solder and one for pbFree. Customer service has been good as well. Be sure to use the Nitrogen feature, and invest in a N02 generator for your sele
Electronics Forum | Fri Apr 06 11:10:43 EDT 2012 | cadco
We are a PCB design house/CM and we have found that if you elongate the QFN pads to the outside of the part by .025 to .030 you then have the opportunity of doing touch-up manually with a soldering iron should there be a voiding issue. This would hav
Electronics Forum | Sat Aug 03 04:33:18 EDT 2013 | sarason
There is one Essemtec CML7000 om ebay right now http://www.ebay.com/itm/Essemtec-Pick-and-Place-Machine-CML7000-CML-7000-/321164969584?pt=LH_DefaultDomain_0&hash=item4ac6ec8670 regards sarason
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