Electronics Forum | Wed Oct 01 15:34:22 EDT 2003 | johnpatricelli
It won't help your operation of a pick and place machine, but if you are just beginning to train your Operators, an excellent beginners' reference for SMT parts and package recognition can be found at TopLine Dummy Components' website, http://www.top
Electronics Forum | Wed Feb 16 14:47:04 EST 2005 | Valerie
Mike, To answer your question, Yes we have thru-hole parts on the boards that we converted to double-sided reflow, we use pallets to select solder the leads. I suppose Masking would work, but that's using a lot of mask. Can I ask, whats preventing
Electronics Forum | Tue Mar 01 10:55:07 EST 2005 | spot
A lot depends on the complexity of the board/process as well as the amount of placements. If the board has few placements and the parts are not smaller that 0805 then doing all the rework after completion is ok. The human eye can only pick out obvi
Electronics Forum | Sat Mar 05 22:57:32 EST 2005 | gpaelmo
This has been our practice and its worked well: SMT process-QC/Touch-Up-Assembly. We have dedicated QC/T-Up after reflow trained under IPC requirements. They do the SMT inspection and ONLY touch-up if necessary. This way we never have to inspect SMT
Electronics Forum | Thu Oct 04 13:34:02 EDT 2007 | rgduval
I'd be happy to tell my customers that they need to provide more parts...the problem is, we specialize in short runs. So, if the customer pinches pennies, and only buys 50 pieces for 50 piece demand, I need to be able to deal with it. Hence, the
Electronics Forum | Tue May 06 11:56:56 EDT 2008 | joeherz
We have a board that uses 0402x4 RNET packages that we are having a difficult time getting to solder consistently. Paste deposition is fine (using AIM WS353) and profile is dead-nuts. I'm starting to wonder if this is something that we're just goin
Electronics Forum | Wed May 07 15:36:04 EDT 2008 | llaerum
The 483 is what we use on all boards except on one where the 353 improved wetting on resistor packs. It worked much better since the parts are LF and this is the same flux AIM uses in their LF solder. Yes, it was recommended by AIM when we discussed
Electronics Forum | Tue Aug 12 15:34:37 EDT 2008 | grics
That is very interesting... I am curious though, why wasn't a plain blind rivet used? You probably can, but personally, I would be not want a solder joint holding the frame and the pcb... Mechanical stress on solder joints often leads to not good re
Electronics Forum | Wed Aug 13 09:20:05 EDT 2008 | wrongway
we tested this kind of part about 3 years ago did a few prototypes I did'nt know how it was going to work but our old amistar picked it and placed it just fine used a small nozzle with a o-ring on the end of it I think it did ok going across the wav
Electronics Forum | Fri May 22 08:04:30 EDT 2009 | stevezeva
Have any of you ever worked with Actel's QFN 180? A three row I/O QFN? Actel has a published paper on design and assembly guidelines, but we're finding that they are pretty much generic, and don't really work as well as they lead you to believe. ht
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