Electronics Forum | Mon Sep 08 10:46:29 EDT 2003 | Kris
Hey, I would suggest using lead-free solder and lead-free components. This would give your kit the "green label". I dont want the sample if you this suggestion doesnt value add to your project good luck
Electronics Forum | Thu Aug 28 16:13:06 EDT 2003 | Dan Gosselin
Thanks everyone for your help. I have since found a good article I am downloading of of the SMTA website. Dan Title : EFFECT OF SURFACE TENSION OF SOLDER ON UNDERSIDE DEVICE SUPPORT DURING REFLOW OF A PCBA Author : Mulugeta Abtew Author Company
Electronics Forum | Tue Sep 09 20:23:23 EDT 2003 | Pfb
We are using gold plated leads on SMT devices. Gold embrittlement is supposed to be a problem at concentrations above 4%. Has anyone done any work to qualify this?
Electronics Forum | Thu Sep 25 13:53:56 EDT 2003 | russ
There isn't any difference in the printing process regarding leadfree vs. lead. The only differences are in the reflow process. Russ
Electronics Forum | Mon Nov 17 19:15:24 EST 2003 | Victor
I currently have an inventory of trim caps that have oxidation on the leads. I performed a dip test and am averaging 90% wetting on the leads. On product that has these components already installed is there any risk leaving the parts that have oxid
Electronics Forum | Tue Dec 09 07:47:09 EST 2003 | Linda
In "Global SMT & Packaging", Volume 3, No. 7, October 2003, European edition under Technology Focus : "Lead Free Assembly : conductive adhesives offer a real alternative", G. Dreezen/G. Luyckx. Mail me if you want me to send a copy of the article in
Electronics Forum | Tue Dec 16 19:45:47 EST 2003 | Hiram
Hi, I am looking for the IPC criteria hole-to-lead ratio. Does anybody know a practical way to determine if some holes in my pcb's do not get enough solder in the wave solder machine because an inapropiate hole-to-lead ratio? Thanks in advance! Hi
Electronics Forum | Wed Jan 14 08:45:04 EST 2004 | Kris
Thanks Dave Will appreciate if any body has any published information on a study they did for voids in leaded devices Will try to talk to them Dave
Electronics Forum | Sun Jan 18 10:13:59 EST 2004 | davef
Materials added to solder can change its appearance. For instance: * Gold in tin/lead solder is dull / grainy * Palladium in tin/lead solder is dull / grainy We do NOT advocate using visual appearance to define the appearance of a good and a bad so
Electronics Forum | Mon Feb 02 22:26:09 EST 2004 | Henry
Any one who knows the international certification programme for lead-free product testing? such as IPC, IEC....... Thank you very much
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