Electronics Forum | Thu May 16 08:58:23 EDT 2019 | tsvetan
You are lucky, out of 4 machines we have 2 failed withing first year. One has Panasonic X-axe servo driver burned. The other machine has the ASIC board burned. Nothing that can't be repaired, but still annoying as we had to wait 1 month for replaceme
Electronics Forum | Mon May 27 04:46:11 EDT 2019 | SMTA-Rogers
Dear CW, Yes, we also tested many different brands and models of solder paste, under the same stencil design and reflow profile the condition of the voids will have great difference.
Electronics Forum | Tue May 07 08:35:43 EDT 2019 | paulanderson
I Have a SMTech/Quad MV100 Printer and it powers up and system on activates but does not go through home sequence - any ideas? All axis will move in the diagnostic mode
Electronics Forum | Wed May 08 06:43:07 EDT 2019 | paulanderson
I have also reset and checked all the inputs are working and all seem OK. Would be grateful if some one could confirm the home sequence, so I can at least start looking there first Thanks in advance
Electronics Forum | Wed May 08 11:05:51 EDT 2019 | gregcr
Hi All, I'm looking for opinions on Squeegee Blade selection. Do you use OEM blades, or aftermarket? Do you prefer coated blades? Do you have a preferred vendor? It's a good topic for discussion. thanks!
Electronics Forum | Thu May 09 12:39:00 EDT 2019 | slthomas
We have never coated flexible circuits, although these guys apparently do as a part of their FC fabrication services: https://gcaflex.com/why-is-conformal-coating-important-for-flex-printed-circuit-boards/
Electronics Forum | Mon Jun 03 13:10:35 EDT 2019 | gregoryyork
We recommend a ramp soak spike profile for HASL finish, so everything gets nicely heated during reflow, we soak around 180C and peak at 245- 250C and don't have any issues as long as the levelling isn't too peaky.
Electronics Forum | Mon May 13 08:41:17 EDT 2019 | relaycz
Thank you for your quick answer. We don't have SPI, but our main constrain is pick and place as our production is very high mix. I'll definitely take a look at Ekra and Yamaha.
Electronics Forum | Fri May 17 07:38:30 EDT 2019 | stephendo
If it happened after a high energy event then maybe the root cause is a lack of TVS diodes in the design of the circuit. Or if they are ceramic diodes then maybe they are too close to the edge and have flex cracks.
Electronics Forum | Tue May 21 17:25:26 EDT 2019 | Matt
Thanks for the feedback, Do you have a specific vendor for these? current parts are TDK 0805s, a sample build with this type of part could be interesting to see.
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