Electronics Forum | Tue Nov 19 15:18:28 EST 2002 | gswable
does anyone have concrete data on the reliability of lead free components-SN/Bi used with tin lead paste thanks
Electronics Forum | Thu Jan 03 02:26:12 EST 2002 | arzu
Hello, I need to know the volume spread of solderpaste after screenprinting fine-pitch paste using a nickelformed screen. It is the end-result that counts , so of course the spread of metalcontent in the paste is important too. Can anyone tell me som
Electronics Forum | Sat Jan 05 02:03:19 EST 2002 | hany_khoga
Dear all: For PBGA replacement by a hot air BGA rework station, do I have to follow the same temperature profile as the first original one in the reflow oven? Note that in the rework process I use only Flux paste (no solder paste is used). Hany
Electronics Forum | Mon Jan 14 20:33:33 EST 2002 | dason_c
Can we say the "Jiffy Pop" is same as void? Also, please provide the manufacturer location, Malaysia?
Electronics Forum | Tue Jan 08 17:30:16 EST 2002 | davef
Look to 7530 �Guidelines for Temperature Profiling for Mass Soldering (Reflow and Wave)�. Obtain it from IPC http://www.ipc.org
Electronics Forum | Fri Feb 01 11:58:28 EST 2002 | Romain
the PCB vendor is Multek in germany he made some measures about P content in Ni layer. What is the normal level of Phosporous and what is the upper limit ? thanks Romain
Electronics Forum | Thu Jan 24 04:06:12 EST 2002 | wbu
Shawn: So, when was your last solderanalysis and what were the results ? Did this phenomenom occur just so, out of nowhere, and is it with all your boards? Just missed these points in your request. Wolfgang
Electronics Forum | Tue Jan 22 20:37:48 EST 2002 | davef
Try: * Searching the fine SMTnet Archives. We have ground profiling, thermocouple attach, etc. to pulps. * Buying [ http://www.ipc.org ] IPC-7530 - Guidelines for Temperature Profiling for Mass Soldering (Reflow and Wave)
Electronics Forum | Mon Jan 28 20:06:52 EST 2002 | davef
Sounds like an interesting project. In Euroland and Japan, there are political moves with no scientific basis afoot to exclude lead from electronic products. There is a HUGE body of knowledge on the topic. For instance, Electrochemical Publication
Electronics Forum | Fri Jan 25 11:50:41 EST 2002 | retronix
First thing to try is to rotate the board 90 deg if possible, this will let you know if shadowing is the cause. Regards Matt
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