Electronics Forum | Wed Nov 02 11:20:04 EDT 2022 | proceng1
Is the BLUE area the only place where parts are located? That is a very interesting concept. Why do they NEED to be flattened? Do they ship flattened, or are they installed flat? I assume that the use of flex is because the actual application re
Electronics Forum | Wed Nov 02 15:44:52 EDT 2022 | chicagosatcom
Which SMT line brand do you recommend for a new manufacturer with low-volume and low-mix? We have a new product that needs to be made locally and requires more flexibility and responsiveness than local CMs can provide. Does any particular SMT brand
Electronics Forum | Wed Nov 02 17:32:11 EDT 2022 | proceng1
I would suggest finding a USED Samsung SM482 or similar. As far as flexibility, we regularly do work orders of less than 25 assemblies. In fact, we have an SMT line basically catered to low volume runs. We are in Pennsylvania, so we aren't local, but
Electronics Forum | Thu Nov 03 11:35:51 EDT 2022 | proceng1
Also, be sure that your support pins are set correctly and do not allow the board to sag or bounce. Next, is your z correct? Its possible you are pushing the part so hard into the PCB that it's pushing back up or even bouncing the board and throwin
Electronics Forum | Thu Nov 03 14:54:54 EDT 2022 | richardcargill
It's a capacitor, not a resistor. From the datasheet and pin locations I'd guess at nothing more than a decoupler in the circuit. hard to tell for certain what package size it is, either 0805 or 0603 by the look of it. A 100nF 25v capacitor would p
Electronics Forum | Fri Nov 04 12:55:45 EDT 2022 | ibtonystark
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Electronics Forum | Wed Nov 09 17:50:42 EST 2022 | cyber_wolf
Take all of the nozzles out that are being used to place these parts and look at them under a microscope closely for blockages or dings in the surface that contacts the component. Check that the nozzle travel moves up and down smoothly and freely wi
Electronics Forum | Thu Nov 10 12:29:57 EST 2022 | stephendo
The G in ENIG is gold. It does not oxidise. Either you are thinking of OSP or your board shop is providing defective boards if your boards show oxidation. It would be the nickel that is oxidising but should be totally covered by the gold. Is there
Electronics Forum | Fri Nov 11 22:14:11 EST 2022 | kumarb
I would certainly test the boards but from our experience, the vacuum sealed in room temp, no issues at all with our PCBs sourced from Suntak / PCB Founder / Fastprint / Yaxinda / JLCPCB well past the 12 month mark. We building boards purchased 5-10
Electronics Forum | Thu Nov 17 20:19:00 EST 2022 | emeto
I need to back it up with a something like IPC standard. It seems to me that people have used boards that aged after the 12months period, however there is no information supported by studies that can show results in quality and reliability of the boa
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