Electronics Forum | Wed Jun 18 16:03:03 EDT 2003 | mkehoe
Orrrrr, just buy a small reflow oven, 5K to 7K, and eliminate the paste printing by using solid solder deposition. No shorts, no opens, no cleaning, and no voids. www.sipad.com If you decide to print your own paste later you can invest the extra 30
Electronics Forum | Fri Jul 13 17:16:49 EDT 2007 | jmelson
I just got a used Philips CSM84 pick and place machine for $1500. I had to widen a doorway and rent a forklift to get it inside, as well as have it shipped. So, the total cost was much higher, but still under $10 K. I may have gotten lucky on this
Electronics Forum | Sun Nov 07 10:54:21 EST 1999 | Steve Thomas
We're looking at redesigning our stencils to facilitate better (well, it's pretty much non-existant, so any improvement is a big leap) release from fine pitch apertures. Currently we have perpendicular walled laser cut apertures. We'll be having
Electronics Forum | Wed Mar 01 16:59:44 EST 2000 | Dave F
Robert: Expect a 0.033" raw ball to be within 0.022" of the pad, after reflow. To be clear, that�s not a matter of shrinking by 33%. The volume of solder on the pad is the same as the volume of solder in the raw ball. It�s just that the solder is
Electronics Forum | Wed Mar 01 16:59:44 EST 2000 | Dave F
Robert: Expect a 0.033" raw ball to be within 0.022" of the pad, after reflow. To be clear, that�s not a matter of shrinking by 33%. The volume of solder on the pad is the same as the volume of solder in the raw ball. It�s just that the solder is
Electronics Forum | Wed Jun 06 03:12:06 EDT 2001 | ianchan
Any blokes in process/QA, can recommend a solder volume, measurement machine, that has proven reliability, in its data readings, prefer that it comes, similar to "SMT m/c" camera-program-function, to remove operator-user variation. Appreciate any hel
Electronics Forum | Tue Jul 27 13:01:06 EDT 1999 | Mike Laroe
Looking for solder paste specification limits which have reliability data to support them. Currently, we are looking to define the min/max volume necessary to ensure a good joint on CBGA, PBGA, and Micro-BGA's. Any information will be greatly appre
Electronics Forum | Wed Jun 06 21:32:36 EDT 2001 | davef
There's over a hundred postings on the topic in the SMTnet archives. Consider: 1 Determining scale / technology of the equipment that you think will solve your needs 2 Running a Gauge R&R on various suppliers of that scale of equipment
Electronics Forum | Sat Jun 09 06:34:36 EDT 2001 | Eyal Dickerman
Hello Wehave very good results with CyberOptic LSM300 with SPC software (applied..) Eyal
Electronics Forum | Sun Jun 10 21:20:35 EDT 2001 | ianchan
Hi mate, thanks for the tip, will contact 'em later. Regards, ianchan :)
