Electronics Forum | Wed Aug 10 02:38:36 EDT 2016 | zxcvb
I guess I've been somewhat ignorant when it comes to the finer details of pcb layout. Lately I've read a couple of books that try their best to lead me on the straight and narrow. Here is a couple of examples of a recent board of mine, and I have hig
Electronics Forum | Mon Jul 09 10:33:53 EDT 2007 | davef
PPS caps absolutely do not like washing. It would appear the structure/chemistry of these things makes them sponges. We don't know if that leads specifically to delamination.
Electronics Forum | Wed Nov 29 14:49:38 EST 2006 | MS
Any recommendation to reduce solder beads next to 0402, 0603 and 0805 caps and res? What about home plate vs. bow tie stencil aperture design?
Electronics Forum | Wed Nov 29 17:00:40 EST 2006 | John S.
We've used both effectively to resolve this issue. Check with your stencil manufacturer. Often, they can give you a very good starting place on issues like this since they see everyone's designs. John S.
Electronics Forum | Wed Nov 29 17:05:15 EST 2006 | slthomas
I have used a 10% area reduction with home plates on 6 mil stencils with good success. If you're using 5 mil stencils you might go with 0 or 5% reduction.
Electronics Forum | Wed Nov 29 22:48:42 EST 2006 | davef
Look here: http://www.smtnet.com/Forums/Index.cfm?CFApp=1&Message_ID=45733
Electronics Forum | Fri Dec 15 00:11:12 EST 2006 | pnguyvu
Contact Steve Yen @714-636-6211 or incoming@usastencils.com He'll be happy to help to with that. Good luck !
Electronics Forum | Wed Dec 06 16:48:42 EST 2006 | Mario Scalzo
I would be glad to help you eliminate the solder balling and beading that you are seeing. As this is a fairly common defect, I would like to forward you an Application Note that we have developed that explains the cause and possible solutions. Most
Electronics Forum | Tue Oct 25 14:20:52 EDT 2005 | james
Does anyone else encounter problems using feeders to handle caps that are reeled up with paper tape. We are having alot of problems with vendors that are now using the thicker type (like cardboard) to use to reel up caps. Our feeders either run too
Electronics Forum | Tue Oct 25 14:51:49 EDT 2005 | bobpan
5v or 12v feeders.....and are you sure the parts fit through the feeders and are not getting jammed. On some of the old feeders you had to remove the springs and other parts to make the tall caps work.... chow
