Electronics Forum: module (Page 1 of 55)

SMD module moving during reflow

Electronics Forum | Wed Jun 19 01:07:32 EDT 2019 | relaycz

Drop of glue should prevent module from moving, but is not really a solution. What about pad design? Are pads on PCB themselves much larger then the ones on the module?

Reliability of power module soldering

Electronics Forum | Fri Feb 18 21:34:36 EST 2000 | gwen

We always have big power modules on the board,they are very heavy,so we use the screw to fix the soldered module,then we destroyed the solder joints.If we screw them first, the board can't be wave soldered. My questions: whether we should use the s

Reliability of power module soldering

Electronics Forum | Fri Feb 18 21:34:36 EST 2000 | gwen

We always have big power modules on the board,they are very heavy,so we use the screw to fix the soldered module,then we destroyed the solder joints.If we screw them first, the board can't be wave soldered. My questions: whether we should use the s

COB module design / layout

Electronics Forum | Thu Oct 26 14:41:33 EDT 2000 | Derek Vanditmars

We are planning on replacing a SMT 100Pin QFP with a COB module that will have two dies that are functionaly equivalent to the old part that will not be available. Questions: 1)Suggestions on substrate material FR-4 or something better? 2)Are there d

SMD module moving during reflow

Electronics Forum | Tue Jun 18 23:24:05 EDT 2019 | SMTA-David

Hi, I have a SMD radio module that has castellated Pads along one edge of the module. The pick and place machine appears to place them very well but when the boards come out of the reflow oven then up to 20% of them have either rotated a few degrees

SMD module moving during reflow

Electronics Forum | Wed Jun 19 17:44:38 EDT 2019 | slthomas

Does the part have a ground/thermal pad underneath or are all terminations on the perimeter?

SMD module moving during reflow

Electronics Forum | Mon Jun 24 11:17:33 EDT 2019 | tey422

I believe you have to log in at the SMTNET.net directly in order to attach an image file.

SMD module moving during reflow

Electronics Forum | Wed Jun 26 04:00:30 EDT 2019 | SMTA-David

Thanks, I'll take a look. Something else I found was the Z height for the module was set to 1.7mm but I am picking up the part on the PCB surface which is only 1.0mm from PCB being loaded, therefore the part must have been let got 0.7mm above PCB an

SMD module moving during reflow

Electronics Forum | Wed Jun 19 02:42:26 EDT 2019 | relaycz

In my opinion, fault lies in printing or reflow. With printing - it's either too much solder paste or bad print, though I would assume that would be caught. With reflow, it could be that ramp up rate is too high.

SMD module moving during reflow

Electronics Forum | Wed Jun 19 11:41:42 EDT 2019 | tey422

Here is a link of an article regarding the SMD rotation during reflow issue, you may find it useful. http://www.circuitnet.com/experts/86914.html

  1 2 3 4 5 6 7 8 9 10 Next

module searches for Companies, Equipment, Machines, Suppliers & Information



Nozzles, Feeders, Spare Parts - Siemens, Fuji, Juki, Yamaha, etc...
Selective Soldering Nozzles

Have you found a solution to REDUCE DISPENSE REWORK? Your answer is here.
thru hole soldering and selective soldering needs

Software for SMT placement & AOI - Free Download.
Sell Your Used SMT & Test Equipment

High Precision Fluid Dispensers