Electronics Forum | Thu Sep 10 18:01:39 EDT 1998 | Earl Moon
| | | | Can anybody point me to a Standard that provides details on the use of Wire Links for the repair of SMT PCBs, e.g. the maximum number of permissible links, the material to be used, the method of joint etc.? | | | Dave: ANSI/IPC-R-700 answers
Electronics Forum | Thu Oct 05 16:04:00 EDT 2006 | GS
I am not expert, just my comment, the total ionic contamination allowed after SMT, by using No Clean process, theoretically it should be close to Zero. Any way the Standard IPC-JSTD-001 allows 1,56 ugr NaCl/cm2 for the final Printed Board assembled.
Electronics Forum | Fri Sep 11 12:14:22 EDT 1998 | Dave Batten
Thanks for the help, Guys. As a matter of interest, I'm going to look up the standard and see if there's a European (or preferably UK) equivalent. If I find anything, I'll post another Follow Up (though I doubt it holds much interest for you)! Regard
Electronics Forum | Fri Oct 06 04:23:06 EDT 2006 | David
What is the solder finish of the board?. If this is gold, maybe you should check the reflow profile and max temperature which can easely kill your gold coating so problems with bonding. Also we are using Prozone Multicore with ultrasonic to clean
Electronics Forum | Sun Apr 15 23:35:14 EDT 2007 | Sam
few more questions: Is there any standard saying that the dull surface is accepted if solder Au plated leads? Understand that more than 3% Au in the solder connection leads to unacceptable embrittlement of the connection. How about any standard relat
Electronics Forum | Mon Apr 16 09:12:23 EDT 2007 | davef
Standard for appearance: J-STD-001 and IPC-A-610 committees eliminated the requirement that solder connections be "bright and shiny". Certain solderability protections; such as Au, NiPd, NiPdAu; can affect the surface texture of a solder connection,
Electronics Forum | Mon Mar 02 11:15:23 EST 2020 | slthomas
You'll want to chop your solder into "bite sized" pieces for your pot, by the way. A bolt cutter or a band saw are a couple of ways to do it without ruining other precision tools. It's up to you for the alloy you use, but there are several (some
Electronics Forum | Sat Apr 14 09:28:58 EDT 2007 | davef
When soldering a component to a board, the solderability protection on the component combines with the solderability protection on the board and the solder to form an alloy. This alloy is unique for that combination of solder and solderability protec
Electronics Forum | Mon Sep 14 04:13:53 EDT 1998 | Jeff sanchez
| Thanks for the help, Guys. | As a matter of interest, I'm going to look up the standard and see if there's a European (or preferably UK) equivalent. If I find anything, I'll post another Follow Up (though I doubt it holds much interest for you)! |
Electronics Forum | Thu Sep 10 21:44:48 EDT 1998 | Steve Gregory
| I'll stop talking to myself and wonder how big Steve G is doing these days. | Earl Moon Hey Earl! I was wondering the same thing about you a few weeks back when we didn't hear much from you...but, I'm doing okay. Been busier than a one-legged
