Electronics Forum | Wed Jul 11 19:36:05 EDT 2018 | kahrpr
First depends on the volume. If its small qtys 2 part may be better. However It comes down to how much you trust your process not to have you parts under the shield Checked if you processes is good do not worry about about it.
Electronics Forum | Wed Aug 09 12:34:54 EDT 2017 | jdengler
It also varies with the types of deposits. Small deposits of paste (as seen on fine pitch parts or small chips) seem to be more affected by exposure. Jerry
Electronics Forum | Fri Sep 21 10:44:34 EDT 2001 | slthomas
You can, and for small parts you probably won't see much difference between body temp. and lead temp. For QFPs or PLCCs there will be a much greater delta, though. I'd be more concerned with the small surface area you're making contact on (spherica
Electronics Forum | Mon Aug 24 17:34:18 EDT 2009 | hegemon
DRS22 is not really comparable to the DRS25 due to a huge difference in the bottom heat technology used on those machines. If the PCBs are light enough the huge power of the DRS25 bottom heater is likely not needed, though. I would ask about your pr
Electronics Forum | Wed Jul 08 23:07:18 EDT 2020 | tylerrobertson
Hello, Trying to re-purpose a QUAD feeder for delivering small parts to a scada robot. Wondering if someone could help me out with a pinout for the connector. it's 8 pins Feeder is p/n 12/10-23959B SSA Was able to get the board to power up and flas
Electronics Forum | Tue Dec 05 16:08:41 EST 2006 | dphilbrick
I would suspect if you had a full evaluation done there would be the same issue with Nickel oxidation everywhere. The reason BGA's fall off (or have solder connection issues first) is due to their size. A slight flex in the board has a much larger im
Electronics Forum | Wed Jan 03 11:34:41 EST 2007 | SWAG
We have a SMT build that has been trouble from day 1. This board is about 2" x 2" and is panelized. The PCB is unusually thick (0.100"). The problem we always have (no matter if it's leaded or no-lead) is that the solder likes to wick up the heal
Electronics Forum | Thu May 19 12:49:14 EDT 2016 | rx8pilot
Tom Nisbet from PPM contacted me on the phone yesterday to help me understand the various feeder options for small parts. Fantastic surprise phone call that was inspired by this thread. I explained my business strategy and financial restrictions an
Electronics Forum | Wed Oct 31 11:01:02 EST 2001 | dougie
Hi Dave, Thanks for the suggestions. To clarify a couple of the points... - What do you qualify as "small" & "large" parts? - Do not make the pad narrower than the lead width. The nominal or the maximum? If I use the maximum width I'll be back to s
Electronics Forum | Sat May 14 12:32:33 EDT 2016 | dilogic
Depending on the vision, there might be issues with small black parts (like 0402 resistors etc.) - we have Mirtec MV2-HTL, btw.
