Electronics Forum | Fri Apr 20 11:07:52 EDT 2001 | kawiederhold
Hi Dave, Good to "talk" to ya again!! I have attached a photo of the antenna. Hopefully it will work its way through the system. The pictured antenna meets all our criteria. The defective antennae all seem to slide toward the center of the PCB (
Electronics Forum | Wed Apr 18 01:07:25 EDT 2001 | MW
I some something like this. My package was not flat the belly of the body rested on the PCB. We found that every 4-5 part would wander to the side. What was puzzling is that the blowers would have blown it the opposite side. ultumately we proved
Electronics Forum | Tue Apr 17 13:33:00 EDT 2001 | Kris W
Howdy all! Nothin' up my sleeve!!! While attempting to reflow an RF antennae on std FR4, HASL coated, using no clean paste, in a Research Thermaflo 10, the part sometimes slides on one of the pads (as much as 0.125"). There is a slight amount of w
Electronics Forum | Fri Apr 20 16:11:29 EDT 2001 | davef
Good to talk with you too. Oh, just the way I had it pictured!!! Yeh, right!!! [http://davesmt.50megs.com/pictures select kristenna.jpg ] Which part of the antenna "sees" heat first [Are all legs (vertical part), two legs, or one leg of the anten
Electronics Forum | Tue Apr 17 21:05:06 EDT 2001 | davef
So, we�re talkin� �bout the smaller end of a "large" paper clip after it�s unfolded once, eh? In keeping with your "nothin� up the sleeves" full disclosure, I�ll bet you�re feelin� a little sheepish about not tellin� us about: * Antenna pad dimen
Electronics Forum | Thu Aug 13 16:25:11 EDT 2015 | emeto
Loctite 3609. Just a small dot under the D-Pak and it works 100%.
Electronics Forum | Tue Aug 11 09:48:22 EDT 2015 | samputrah
We have had two jobs that have the same issues with DPAK's sliding off their pads during reflow. We tried to resolve this by placing epoxy on the side of the component to create a "dam". However this is not repeatable enough to be a quality resolutio
Electronics Forum | Thu Aug 13 14:10:01 EDT 2015 | markhoch
Hi Sam, I have a feeling that what you're trying to communicate is that your DPAK's are skewing off the pad during reflow. This is caused by a thermal "mismatch" where the solder paste on one side of the DPAK becomes molten before the other, then th
Electronics Forum | Thu Oct 23 17:59:44 EDT 2003 | Jim
Where can I find information on how to setup a prewave slide line and automated tools to calculate the workload balance? Regards
Electronics Forum | Tue Nov 09 10:44:29 EST 2004 | stefwitt
If you are doing small circuits, you could use glass slides http://www.hometrainingtools.com/catalog/microscopes-accessories/cat_microscope-slides.html apply conductive epoxy traces, place your components in it and cure at ~ 120 Degree C
