Electronics Forum | Thu May 29 13:01:32 EDT 2008 | bvdb
That's what they said about Christopher Columbus. Don't you know that the world is flat - you're going to fall off the edge. If Chistopher Columbus had listened to that advise then Europe would be a lot more crowded today. Bert
Electronics Forum | Tue May 20 10:27:29 EDT 2008 | azimi789
I just set that as you said, but the component doesn't stick on the board. I use AMTECh Flux type: RMA-223.. what should I do ? Thanks.
Electronics Forum | Fri May 30 09:53:19 EDT 2008 | cyber_wolf
"Another sticky issue is that if you use after market nozzles especially mixed in with Fuji nozzles the Anti-Marking Illumination Disks can be different enough that the vision system will reject nozzles. Jerry " Thats what I meant when I said they
Electronics Forum | Thu Feb 05 19:13:28 EST 2009 | smt_guy
they said (management) that it is not part of the cost and whenever operators are unloading feeders from the machine and returning parts to store...they are considered and logged as idle time in our process sheets...and I feel very bad. #$%^&**(
Electronics Forum | Mon Jul 28 10:17:59 EDT 2008 | davef
Most of us are more interested in building boards than designing them. Having said that we'd like to help. Start here: * http://www.hobbyprojects.com/ * http://www.eskimo.com/~billb/amateur/elehob.html * http://www.electronic-circuits-diagrams.com/
Electronics Forum | Fri Aug 08 23:53:04 EDT 2008 | hanward
Our engineer said when we deliver silver coated PCB to customer,we will use vacuum airbag packing with desiccant inside.And when you receive it,keep them in warehouse below 24 centigrade.If you have opened the packing,it seems no good way.
Electronics Forum | Mon Aug 11 10:37:19 EDT 2008 | realchunks
I assume you mean the balls of the BGA, not pads (laugh it up guys - I said balls). If so, you may have a no-lead BGA or a high temp BGA.
Electronics Forum | Thu Aug 28 22:33:20 EDT 2008 | vladig
Well, as I've said before, a simple cross-section will shed a lot of light on the root cause :-) Vlad www.sentec.ca
Electronics Forum | Wed Sep 03 11:52:58 EDT 2008 | stepheniii
But Vlad was talking tin and Davef gave intermetalic thicknesses which Vlad said needs to be avoided by having a few microns of tin. I'm not 100% sure but I suspect that DaveF is not convinced that Vlad knows what "intermetalic" means.
Electronics Forum | Wed Sep 24 12:51:47 EDT 2008 | wavemasterlarry
I got my section 8 from the navy. Not sure why they did that to me but they said I wasn't right. I didn't know I could be certified in it. Not sure I would want to be anyway.
