Electronics Forum | Tue Aug 03 14:46:25 EDT 2004 | russ
We recommend to the designers "the smallest diameter that you can get away with", that will help reduce the solder scavenging into via diring reflow. unless you are planning on having them filled as Dave F mentioned. Russ
Electronics Forum | Sun Aug 01 11:27:40 EDT 2004 | haran
What is the best epoxy attachment method for Heat Sink?The operator always miss the solvent dispensing application prior to epoxy dispense which cause the heatsink falling off at customer site as well as in the factory?Any advise?
Electronics Forum | Tue Aug 03 21:34:28 EDT 2004 | davef
That must be embarassing to explain the reason that a heatsink falls-off the board at your customer's site. ;-) We have found the best approach involves: * Work instructions that are clear, complete, and unambiguous. * Proper materials and tools to
Electronics Forum | Sun Aug 01 11:31:59 EDT 2004 | Andrew
How do you define torque setting for screw?What does 1)Screw with Bolt size 3-48 means ? 2)Thread Size M3 means? 3)Fasterner Property Class?
Electronics Forum | Mon Aug 02 10:20:39 EDT 2004 | MikeF
You might also want to check out the web site for Assembly Magazine. I have not checked it lately, but they used to have several technical articles about fasteners there. It is http://www.assemblymag.com. Mike F
Electronics Forum | Thu Aug 05 11:51:46 EDT 2004 | Dhanish
So are you saying there is no way the vision system will accept the part if there is problem with feeder or nozzle?In what case,misalignment can happen before reflow process?
Electronics Forum | Fri Aug 06 07:16:14 EDT 2004 | cyber_wolf
If your part height(thickness) is set too tall in the software, the machine will drop the component before it touches the paste. If your part height(thickness) is set too short in the software you will smash the part into the paste. This can cause da
Electronics Forum | Fri Aug 06 07:20:29 EDT 2004 | cyber_wolf
Try slowing the cam speed to 50% or so to start with. Also make sure that you are using the largest nozzle you can on that particular part.
Electronics Forum | Fri Aug 06 08:36:06 EDT 2004 | vinitverma
Do you mean to say that the turrets can compensate for the height? I thought it was purely a mechanical up-down movement with the cam and hence the thickness hardly has any effect!
Electronics Forum | Fri Aug 06 08:48:15 EDT 2004 | Andrew
I have also heard both explaination from different Equipment Engineers.I am not sure which oine is right for chip shooter.
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