Electronics Forum | Thu Sep 26 14:43:43 EDT 2002 | Jim M.
unsure of what solder spec. your working to?.IPC/EIA J-STD-001C, Section 9.2.4 clearly states dull, matte, gray or grainy appearing solders are accpetable depending on your process and if the acceptability of the neaxt paragraph is met.IPC 610 and J-
Electronics Forum | Wed Oct 02 15:20:55 EDT 2002 | Eric
Is there a steadfast rule of thumb for a good solder joint on an Enig Gold board. I come across this number 217C when discussing BGA profiles. Is this a published number? I sure could use a reference. Anybody feedback is appreciated.
Electronics Forum | Tue Nov 02 08:36:51 EDT 2010 | rgduval
Michelle, Our experience with no-clean solder pastes has been that water washing a mis-print is a bad idea. We've found that DI water does not do a sufficient job removing the no-clean paste (the same goes for stencils). Instead, we have washed no
Electronics Forum | Mon Jul 16 09:04:00 EDT 2001 | Hussman
No argument here. But I've don't think I've ever seen solder balls on 0402s. Even when they're placed on narrow G dimension pads, where there is little toe fillet, I've never seen a solder ball. But your idea of reversed homeplates would work grea
Electronics Forum | Mon Jul 14 12:24:02 EDT 2003 | MA/NY DDave
Hi So Steve, I must have missed something from your last subject topic. "solder fillet peeling" Are you saying you or they, Ultrasonic Clean for 20 to 30 minutes after soldering and that is suspected as causing the cracking at the top of the compo
Electronics Forum | Thu Dec 12 12:54:25 EST 2013 | jaimebc
For selective soldered components, or even hand soldered, with vertical bend components, the body of the component, in this case a resistor, is making contact with the surface of the PCB, making it impossibe to visually see the solder fillet. Or to d
Electronics Forum | Thu Jan 12 22:51:12 EST 2006 | davef
We think if you follow your suppliers instructions, you should be OK. Why not have your quality people rip a couple of the soldered heat sinks from the board to assure themselves that your soldering process is adequate? Give them a pair of pliers a
Electronics Forum | Thu Apr 17 13:02:28 EDT 2003 | Takfire
Thanks Dave! What level of voiding is acceptable? Would you please let me know if there is an EIA or other industry standard detailing solder joint quality? I will begin researching the background information you provided. Thanks again for your kin