Electronics Forum | Mon Sep 05 07:03:35 EDT 2005 | beta
All, I would like to find out what trials everyone is carrying out when evaluating Leadfree Paste. Thanks, aj
Electronics Forum | Fri Sep 09 11:01:14 EDT 2005 | rob
If the tombstoning is thermal (occuring during reflow) then try slightly reducing the stencil apertures so there is less the paste on the pads, reducing the forces acting on the component. Also take a look at the cooldown profile & making it more
Electronics Forum | Thu Sep 15 18:02:52 EDT 2005 | GAK
If the end sensor is bad it will cause the axis to past it and travel against the end stop and cause an over current also. So it kind of depends on what the machine is trying to do.
Electronics Forum | Sat Apr 15 14:28:26 EDT 2006 | Dan Mendoza
This may sound like advertasing, but I ran a DOE with five solder paste/flux manufacturers and somehow, the voids went away with the AIM solder.
Electronics Forum | Wed Sep 21 01:57:40 EDT 2005 | hly
Hi K, Thanks for your reply. I was wondering if there is an industry spec that specifies a minimum required solder volume for BGA joints? Thanks HLY
Electronics Forum | Fri Sep 30 03:24:28 EDT 2005 | pavel_murtishev
Good day, Check this out: http://www.mvent.com.ph/malcom/sps1.htm. SPS-1 is rather good. BR, Pavel
Electronics Forum | Wed Oct 12 13:49:17 EDT 2005 | russ
Most likely happening during the cooling phase. I also produce many of these joints with no reliability, DOA, or field failures to date (thousands upon thousands). Contact your paste supplier and they will give you the technical stuff on what you a
Electronics Forum | Fri Oct 21 09:02:07 EDT 2005 | Bob R.
You can get them from Heraeus. It's their design and last time I talked to them (about 6 months ago) they keep them in stock.
Electronics Forum | Wed Oct 26 17:26:32 EDT 2005 | Larry Davis
I have used Kinnarney Rubber Company out of Mantua, NJ in the past with great results. Contact Jim Kinnarney 609-468-1320
Electronics Forum | Sat Nov 05 07:28:59 EST 2005 | milroyperera
Hi, What would you do normally when you have collected the used solder from the stencil each day?
