Electronics Forum | Fri Aug 21 11:48:14 EDT 2009 | dcell_1t
thanks davef according with DOE, most significant factor was the placement force applied to component... just to wait for confirmation run!!! regards.
Electronics Forum | Wed Sep 23 21:40:29 EDT 2009 | davef
We apply temporary solder mask off line, using a programmable dispense head. Works fine. Purchasing a placement machine with a dispense head usually only works-out well for the sales-type. Not in every case, but usually.
Electronics Forum | Thu Sep 24 17:36:12 EDT 2009 | davef
Both of the articles talk about pockets cut in the contact side of the stencil that correspond to components [or PTH leads] that would allow PTH first, glue second, and finally second-side SMT placement.
Electronics Forum | Thu Oct 15 11:04:28 EDT 2009 | spitkis2
Thanks Jim. Pressing the QFN into paste was what I thought of, just wasn't sure if it would cause solder paste to be pressed outside the pad area and possibly bridge with an adjacent pad. Do you recall the ratio of paste coverage to the pad area?
Electronics Forum | Fri Oct 16 14:45:58 EDT 2009 | cyber_wolf
Many pick and place platforms rely on nozzle spring pressure to determine how hard a part is getting pushed into the paste.
Electronics Forum | Thu Dec 17 15:02:55 EST 2009 | jlawson
Valors vPlan also has applicable valid tools - smt programming ,docs/WI generation, manual placement all possible...
Electronics Forum | Thu Jan 28 16:27:05 EST 2010 | Howard
9 micron placement accuracy. Includes Flipper unit, dispenser and double nozzle changer. Any interest? Howard (AIRVAC)
Electronics Forum | Tue Feb 23 13:21:25 EST 2010 | davef
Gregp How does MASCOT for PCB Assembly [Robotas Technologies Ltd, Broadlands House, Foxendown Lane, Meopham, Kent DA13 0AE; +44 (0) 1474 815815 F+44 (0) 870 005 6914 robotas.com] match-up with the Contact CS-400E machine?
Electronics Forum | Tue Mar 30 16:02:19 EDT 2010 | jlawson
Does anyone know how to export Part Data from Flexa into CCIMF format - just want the parts only no board of Placement info etc? Is this possible ?
Electronics Forum | Wed Mar 31 11:33:19 EDT 2010 | gantry228
Also, ensure you have taught the pickup and have the part on the nozzle when teaching the placement Z height.