Electronics Forum | Tue Mar 09 07:05:47 EST 2010 | cyber_wolf
I would like some feedback on printing micro-bga's on MPM UP2000 machines. What type of tooling are you using,registration repeatability ect... Thanks in advance..
Electronics Forum | Thu Mar 11 10:25:24 EST 2010 | pilusa
Can you give a few more details about what solder you are using and your tinning flux? Also, are you using a Nitrogen generator or a cryogenic?
Electronics Forum | Tue Mar 16 20:45:51 EDT 2010 | r_nelson777
check out DIAS in HongKong. They may have what you need. website. http://www.diasautomation.com email. sales@diasautomation.com
Electronics Forum | Fri Mar 19 16:13:00 EDT 2010 | davef
The aluminum material is typically plated by a zincation process, followed by nickel plate and a gold flash layer. What do the soldered side of the component and the soldered side of the aluminum coin look like? Do they both take solder?
Electronics Forum | Tue Mar 16 16:59:09 EDT 2010 | davef
Most often 'solder graping' refers to poor solder wetting, where the solder paste has partially melted, but has not coalesced or flowed. Sometimes this leaves the outline of the partially melted solder balls still visible, giving the appearance, to
Electronics Forum | Fri Mar 19 14:07:49 EDT 2010 | cguerzoni
Dear all, could you plaese tell me what is the "normal" % of wasted components in SMT production? Thank you.
Electronics Forum | Thu Mar 25 14:31:28 EDT 2010 | cguerzoni
Thank you, it seems to be an high scrap %. I think that this % depends on the size of the component (machine loss), on the lot size (new lot set up loss) and on the number of components per reel (new reel set up loss). What do you think abot this?
Electronics Forum | Wed Mar 24 01:22:38 EDT 2010 | itzikbs
These boards had solder mask issues, where manufecter took the boards and said he will rework them. All boards has the same problems as in the picture attached. We rejected the boards, but still I appriciate an explanation what can go wrong if I us
Electronics Forum | Wed Mar 24 07:10:32 EDT 2010 | aj
Hi all, I would like some recommendations on what machines are best suited to Automated Insertion of plated through hole LEDs. I am sure there are plenty of pitfalls associated with this type of process aswell, so if you could share these aswell.
Electronics Forum | Fri Mar 26 09:34:01 EDT 2010 | dyoungquist
What about thermal cycling and/or vibration over the long term? My guess is that with the voids the joint would not be as reliable long term as a joint without the void. Am I thinking correctly?
