Electronics Forum | Wed Aug 01 15:18:40 EDT 2018 | dleeper
One option might be to convert the coil to through hole and use intrusive reflow AKA pin in paste. the coil leads would have to be formed perpendicular to the board instead of parallel. you would have through holes instead of SMT pads, but you would
Electronics Forum | Wed Feb 23 16:49:08 EST 2000 | Dave F
John we paced through the same question recently. Both automatic dispensers and printers can be used to deposit SMT adhesive or solder paste on substrates with a relatively high component density. Dispensers are superior to printers in terms of exa
Electronics Forum | Wed Feb 23 16:49:08 EST 2000 | Dave F
John we paced through the same question recently. Both automatic dispensers and printers can be used to deposit SMT adhesive or solder paste on substrates with a relatively high component density. Dispensers are superior to printers in terms of exa
Electronics Forum | Mon May 21 17:34:22 EDT 2001 | davef
Continuing the line of Michael's, the previous poster, comments ... The more Krispy Kremes, the better. Yeth!!! The more beer, the better. Yeth!!! The more epoxy, the better. Uh, I don think so!!! We look at this from a papa bear, mama bear, bab
Electronics Forum | Fri Aug 10 13:28:19 EDT 2001 | Hussman
Hey John, You're not alone, a lot of people have the same problem with different machines and material. What is your specific problem, just keeping SPC control? Or are your defects at the wave from the glue too? If it's a process problem, I found
Electronics Forum | Mon Mar 03 11:06:13 EST 2003 | msivigny
Hi floydl, I completely understand when it comes to data crunching after long hours of performing measurements, it's the last and most important arduous task in obtaining performance data. If a measurement and evaluation process that traditionally to
Electronics Forum | Fri Oct 13 13:44:03 EDT 2000 | Mike McMonagle
You can achieve a wide range of dot heights when stencil printing by using a polyimide stencil along with a .040 snapoff. Loctite has a system for this that they call Varidot, by varying the size of the apertures in combination with the .040 snapoff
Electronics Forum | Tue Sep 04 15:08:51 EDT 2007 | floydf
We have a job that has through hole components on the top, and one 44 pin j leaded PLCC on the bottom. Presently we put the through hole parts in, run it throught the wave, dispense paste on the PLCC pads, and then apply hot air. Someone suggested we
Electronics Forum | Wed Dec 08 18:40:39 EST 1999 | shane.M
We encounter a similar problem, whereby stringing becomes a real problem when board temperatures are raised. We tried slightly larger dots, but this did nothing more than block the nozzles of the pick & place machine. You basically have only two opt
Electronics Forum | Tue Mar 18 09:11:14 EST 2003 | Rob C
With a standard valve and no-clean solder paste you may get a few good dots. But, repeatability will be terrible too many variable, air-pressure, board height (two post nozzle), valve time on/off, retract height, retract time, etc... A RMA paste wi
