Electronics Forum | Mon Aug 12 14:00:38 EDT 2019 | slthomas
While I agree that you need to see an MD ASAP, it might help your provider to actually know what you were breathing, and I would worry way less about the materials in the components than I would about the flux from the solder paste. Edited to add, a
Electronics Forum | Tue Aug 13 11:21:04 EDT 2019 | slthomas
A profiler can't distinguish where your heat is coming from, so if you're significantly imbalanced between top and bottom heat (could be an oven problem or your settings) it might still be a cause. You don't say whether or not your top and bottom s
Electronics Forum | Mon Aug 19 11:36:27 EDT 2019 | bulur
How does no-clean flux residues on a PCB assembly impact the ROSE testing? Does no-clean flux residues on the PCBA dissolve in solution of ROSE tester and increase ionic contaminants level in terms of NaCl per surface area? Is ROSE tester solution (a
Electronics Forum | Tue Oct 01 18:24:03 EDT 2019 | etonin1
Hello everyone! I work into SMT branch, on p&p Faroad, Quadra TWS and Autotronik. I always mounted a lot of circuits, especially strip led on kapton sheets. I noticed that thing.. between a kapton circuit and another there are differences such as lit
Electronics Forum | Wed Oct 09 17:05:36 EDT 2019 | slthomas
I think you answered your own question by providing new information. If your AOI isn't capable of catching the vast majority of SMT soldering issues and you're SMT process isn't functioning at a very high level, you probably should count on inspect
Electronics Forum | Tue Oct 15 17:54:08 EDT 2019 | davef
From J-STD-001: Components designed for pin-in-hole application and modified for butt connection attachment, or stiff-leaded dual-inline packages (e.g., alloy 42, brazed or tempered leads) may be modified for use on Class 1 and 2 products but shall n
Electronics Forum | Mon Oct 28 21:56:56 EDT 2019 | sarason
I presume you mean at microwave frequencies. If not get it right in the CAD. Programs such as Microwave Office and VSS make it easy. Also Ansoft, Keysight Eagle etc. Having used MO and Eagle I would heartily recommend them. In the bad old days one tr
Electronics Forum | Wed Nov 27 07:34:44 EST 2019 | oxygensmd
My experience is that capacitors cause more problem as resistors. Mostly the problem is that the solder legs not flat, more like a surface with radius. If you use smaller nozzle which can catch the capitors between the two legs, the placement accura
Electronics Forum | Tue Dec 10 15:43:56 EST 2019 | SMTA-Norah
The short answer is people are still arguing about what the standard should be. A max voiding between 25-30% depending on who you ask. Also if those are capped vias they can still cause voids because bubbles are attracted to the irregularities in t
Electronics Forum | Wed Dec 04 08:15:55 EST 2019 | proceng1
You have a peak of 216 and roughly 40 seconds TAL. So you are right in the middle of the given ranges. So there's room to get things a little hotter and for a little longer. I am surprised you are having this trouble with TIN/ LEAD, as the process
