Electronics Forum | Wed Apr 19 08:19:41 EDT 2006 | davef
So, your solder ball didn't collapse. What is the ball material? More and more BGA are shipped leadfree. For image posting, look here: http://www.free-webhosts.com/free-image-hosting.php
Electronics Forum | Wed Apr 26 09:15:23 EDT 2006 | Carol Stirling
That would be correct. Some others call it `Head in Pillow'. The BGA balls are 63/37 and the board it's mounting to is HASL.
Electronics Forum | Wed Apr 26 10:33:57 EDT 2006 | Carol Stirling
Hi Russ, The board was ran in two orientations but with poor results. The same area of the BGA failed. I was advised today that the Process Engineer here has come to the conclusion the defect is Pick and Place machine oriented, not a process/pro
Electronics Forum | Tue Apr 18 14:06:56 EDT 2006 | samir
Has anyone done a Wave Solder flux evaluation lately for no-clean/VOC-Free/lead-free? If so, please do share some feedback. Who're the best candidates out there, etc?
Electronics Forum | Tue Apr 18 18:34:57 EDT 2006 | George
Try 270WR flux from AIM solder. It showed very good results on our wave solder process. Let me know yours... Thanks, George
Electronics Forum | Wed Apr 19 10:20:24 EDT 2006 | slthomas
"We use depleted uranium blades." He'll be here all week, folks. Try the veal!
Electronics Forum | Wed Apr 19 10:44:40 EDT 2006 | Curt
Really, you have been a great crowd!! Don't forget to tip your waitress.
Electronics Forum | Wed Apr 19 11:35:26 EDT 2006 | pr
I think she's talking about frameless stencils, and how tight it should be. I could be wrong though!
Electronics Forum | Wed Apr 19 12:03:48 EDT 2006 | russ
Well, that would make more sense!!! Do you not have a manual for your printer? Contact the MFGr. of your machine.
Electronics Forum | Tue Apr 18 23:50:38 EDT 2006 | Sidney
When I rework BGA,PAD came off from PCB. Why does this happen? How should I improve this problem? Thanks!
