Electronics Forum: cfm (Page 2507 of 7894)

Reflow issue with QFN

Electronics Forum | Thu Jul 05 14:15:28 EDT 2007 | 18424

I ran into the same thing several months ago, I increased my reflow zone temp 10 degrees and this corrected the problem. For some reason it has somthing to do with the plating on the component. I don't know what part you are running but Some of the M

PC Board Marking

Electronics Forum | Mon Jul 09 15:53:19 EDT 2007 | davef

We talked about laser marking here previously. Maybe searching for something in the fine SMTnet Archives will provide a new direction to you board marking dilemma

PCB moisture content

Electronics Forum | Fri Jul 06 10:18:02 EDT 2007 | blnorman

According to IPC-A-600, measling can occur in epoxy-glass boards when the moisture content of the board is above 0.3wgt%. Is this the industy acceptance standard for max moisture content of a board?

Kester R562 and using lead free components

Electronics Forum | Fri Jul 06 12:39:01 EDT 2007 | blnorman

What's the metallization on the board? We use an immersion tin board and had to increase our profile to successfully solder.

Need Conceptronics Password

Electronics Forum | Fri Jul 06 17:07:12 EDT 2007 | chrisgriffin

Shrek, If you would have given the correct password, even in a Shrek-like way, that would have at least been tolerable; but come on..... ogre? I know ogre's aren't known for their intelligence, but please try to be more helpfull.

Need Conceptronics Password

Electronics Forum | Fri Jul 06 17:09:39 EDT 2007 | chrisgriffin

Yeah, but their not home right now. But I did get the password. level 1=1 or administrator level 2=2 level 3=3 Tried "ogre", but it didn't work.

GSM won't change nozzles ...

Electronics Forum | Mon Jul 09 15:34:40 EDT 2007 | dilogic

Yep, I've learned the lesson the hard way - you can't start GSM with no nozzles on heads ;-). I've discovered after I posted the question. Thanks anyway... - Deni

Temperature Probes for Reflow Profiling

Electronics Forum | Wed Jul 11 10:08:44 EDT 2007 | pauld

There are a lot of older threads on this topic. Any new alternatives to using temperature probes for characterizing reflow profiles? The mfg just DOUBLED the price on the probes to $989 each! I prefer using the probes for surface temp and the majorit

Temperature Probes for Reflow Profiling

Electronics Forum | Wed Jul 11 13:34:57 EDT 2007 | pauld

Thanks Pete, I have plenty of Omega thermocouple leads on hand. By the way ECD is the mfg asking $989 for a probe that costs about $100, to which they add a pcb edge clamp.

Temperature Probes for Reflow Profiling

Electronics Forum | Mon Jul 16 01:15:06 EDT 2007 | d0min0

Samir, can You share Your mod for slimKIC ? :) I have one set free and wanted to buy surfer kit - but I could also try to make my own carrier if I know key points HOWTO :)


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