Electronics Forum | Tue Aug 30 12:49:59 EDT 2005 | Ted
Slaine, We use a Pd/Ag thickfilm paste. Because of the leaching we had to start using solder pastes that have silver in it. For RoHS, we are using a solder paste with an alloy of Sn95/Ag05. We also have to double print the thickfilm pastes. I h
Electronics Forum | Tue Aug 30 17:02:16 EDT 2005 | stepheniii
Check them before the oven for cracks. (after placement) Don't just look at them, take them off the board and check. I"ve seen resisters that were broken by the machine but you couldn't tell untill you took them off. If they are cracked check the co
Electronics Forum | Tue Aug 30 22:38:54 EDT 2005 | cabs
Does any one knows where to get a plating thickness meter that can be use in the fine pitch contacts and trace in PCB application like BGA pads? If there's a hand held device at lower cost much better... Also if you can recommend companies that offer
Electronics Forum | Wed Aug 31 06:36:44 EDT 2005 | Slaine
i looked at hand held XRFs for a similar application, but the smallest surface i could find one sampled was about 3mm diamiter and there about �30k but a few companies will lend you one dor trials, would tell you the plating thickness and metalic ele
Electronics Forum | Wed Aug 31 19:58:37 EDT 2005 | Paul Bendemire
Hello, We're experiencing about 4% loss of parts (primarily 0402 caps and resistors, few 0603s and 0805s), and the error codes are mostly 12040403 and 1CA0A009. The help manual on error codes is cryptic at best. Can anyone help me interpret these
Electronics Forum | Fri Sep 02 04:40:30 EDT 2005 | rlackey
Hi Paul, http://www.alternativesmt.co.uk/productdetail.asp?p_id=2&st=es&c_id=9&m_id=0 http://www.abtech-europe.com - search under equipment - it's called the GAM20. The GAM20 was about 1/2 the price, but the alternativesmt one could do multiple fe
Electronics Forum | Tue Sep 27 14:42:56 EDT 2005 | paulbendemire
20%) on particular parts (e.g. 0402 caps) by looking to the part data. After this, we have another threshold (10-20%) that I am continuing to look into. Feeders are suspect, though part data could also be involved, just to a lesser extent than with
Electronics Forum | Tue Sep 27 15:57:43 EDT 2005 | stepheniii
Ceramic caps are denser than most other components and I"ve found the tops can be slightly rounded. You may want to slow down the turret speed for some parts. Do you ever get a location where there should be a part but there is not? If the part fly
Electronics Forum | Wed Sep 28 10:39:40 EDT 2005 | stepheniii
I didn't mean where the vision looks. I meant where the nozzle meets the component. I"ve seen a slight doming of these components. Although now that I think of it, Fugi nozzles would be less affected than some other machine nozzles. Assumming a syme
Electronics Forum | Mon Oct 03 12:17:18 EDT 2005 | jdengler
Another problem I have seen on CP's is mixing suppliers on the Anti-Marking Illumination Disks. Some after market suppliers disks do not reflect the light the same as Fuji's disks. It is nearly impossible to get the lighting level good enough for r
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