Electronics Forum | Mon Oct 09 15:57:10 EDT 2006 | russ
We like to use the type thast solders onto board and only the top of it is snapped on, this way we can use equipment to place shield and remove shield when required for access to component. We also utilize a through hole shield but basically solder
Electronics Forum | Wed Oct 11 22:23:39 EDT 2006 | billwestiet
I've installed a number of these machines here in the US, several of them with VOC free applications. I would need to get a bunch of questions answered before I could make any suggestions: What is the pcb width? length? conveyor speed? flow rate (mm
Electronics Forum | Mon Oct 09 18:40:43 EDT 2006 | darby
Seeing you are already using Quad; I'd look at a Samsung CP-45V. I believe your feeders will be compatible but please cheeck to make sure! These are a six head, on the fly machine that will do just about anything you want apart from gripper applicat
Electronics Forum | Mon Oct 16 16:25:53 EDT 2006 | Cmiller
I think we run our Vectra between 9 to 14 PSI. If memory serves me, I dont think you can set it above 14 PSI. We use VOC free no-clean. Your number seems WAY high. Check the nozzle. You also may need a different nozzle size. We always run a good filt
Electronics Forum | Sun Oct 29 22:47:03 EST 2006 | LMPH
We are going to start doing rework of Lead Free BGA's. Have always used flux for SN/Pb boards/BGA's with good results. Can flux be used fro lead free as well? Boards were originally assembled using lead free paste and components. Hence, the BGA w
Electronics Forum | Tue Oct 31 08:08:15 EST 2006 | bobsavenger
I'm just looking for some fire-power here. We have a board that when it goes through reflow the first time, everything is fine and has good wetting. When we do the secondary side, one specific part is then Dewetting according to our production oper
Electronics Forum | Mon Nov 06 10:03:19 EST 2006 | SWAG
I don't know of any articles but you will see the following problems: The flux will evaporate from the paste and your solder joint will look very grainy or will not reflow at all. The paste will not have a good, tacky quality. Your pick and place
Electronics Forum | Mon Nov 06 17:11:23 EST 2006 | gregcr
Hi All, I have vendors and even customers telling me that to properly run RoHS compliant products I should have ovens with more zones than my Heller 1500's. I have been running RoHS compliant product with these with very good results. So what ar
Electronics Forum | Tue Nov 14 01:24:07 EST 2006 | CHITRA
In some of SMT PCBs, we get black coloured dull finish /soldering joints on leads for QFP. What is the reason for getting this black colour finish . If we use the same IC on some other board for the same pitch location ,we get good soldering result.
Electronics Forum | Fri Nov 17 14:36:17 EST 2006 | Fer
Good afternoon all, There is an issue in my company regarding flatness on SMDs. The part I am fabricating is a multilayer assembly of .175" by .175" by .049" thick. The part is made out of a multilayer copper clad PTFE with a tin finish surface. Af
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