Electronics Forum: fet and burn (Page 1 of 3)

WSOL and solder pot

Electronics Forum | Fri Mar 14 11:18:29 EDT 2008 | operator

The way it works is the liquid solder immediatley cures (or should I say burns) the WSOL where ever it touches it. This hardens and keeps it in place and protects whatever is under it. Some of the WSOL falls of in the pot. I am suprised that the burn

Flux Designations and Composition

Electronics Forum | Mon Jul 12 11:35:27 EDT 2004 | Pierre RICHARD

Here are some answers to my questions after a good research. I also added more definitions that could help understand this esoteric language used in assembly, specially surrounding fluxes and their use. In blue italics are comments and extracts from

Solder beads and wave soldering

Electronics Forum | Wed Jul 05 10:13:02 EDT 2006 | jdengler

Is the flux rated for lead free? These higher temps will cause most lead rated fluxes to burn off prior to the wave. Jerry

Manufacturing and test room cleanliness

Electronics Forum | Wed Feb 07 07:58:58 EST 2007 | ayelet

Thank you guys. So to summarize - no spec, just need to have decent cleaning... Are you familiar with dust events that caused burning of test stations ? Thanks Ayelet

Time and temp in lead and lead-free reflow

Electronics Forum | Mon Jul 28 16:48:54 EDT 2008 | pcbbuilders

my oven has a built in profiler, it works fairly well, but it can not predict changes. my main concern was about the time right before reflow. i know that's where the flux is activated and i was worried that i may be spending too much time at the tem

Decoupling caps and PCB layout

Electronics Forum | Wed Aug 10 02:38:36 EDT 2016 | zxcvb

I guess I've been somewhat ignorant when it comes to the finer details of pcb layout. Lately I've read a couple of books that try their best to lead me on the straight and narrow. Here is a couple of examples of a recent board of mine, and I have hig

Solder beads and wave soldering

Electronics Forum | Thu Jul 06 12:52:35 EDT 2006 | samir

..and he can put the flux in and keep it a secret too from his customer.. RSS profile on wave?? I never heard of a soak zone for wave preheat...you may be burning off your activator..hence, the beads. For wave preheat, your main goal is to ramp up

Heat guns and component damage

Electronics Forum | Wed Feb 01 08:12:04 EST 2006 | Chunks

OK, this is easy. You say HIGH fall out, so I can assume 25 or 50%? If so, run 10 without the heat gun and 10 with. This should show you if the heat gun process is the cause or not. If the relay is a surface mount, hand solder them on. If it's a

Water wash flux and cleaning

Electronics Forum | Mon Jun 19 09:47:23 EDT 2017 | georgetruitt

You have a lot to think about! What does the flux manufacturer recommend as far as specifics like water temp or pressure? Do they recommend high temp di-water a detergent or saponifier? Do you currently have a cleaning machine, batch cleaner or inl

Puzzling CSM84VZ errors, #118 and #120

Electronics Forum | Mon Nov 07 20:52:39 EST 2011 | jeffr

Tom, V3.78 is truely a bad version and does not include GLOAD. Files taken from the machine with V3.93 can stumble, but can be read... so I would recommend burning V3.93 EEPROMs. Only do this if both machines have Vision and DC Servo Motors present.

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