Electronics Forum | Tue Aug 25 12:08:12 EDT 2020 | dontfeedphils
On a small, single stage RPS machine I was going through a dewar (not sure on the capacity differences between what you're using and a dewar) every 6-9 business days running normal 8 hours shifts. Side note, I'd suggest trying out SN100C alloy over
Electronics Forum | Mon Aug 31 12:27:08 EDT 2020 | dontfeedphils
I guess my question would be why are you getting so much/leaving so much flux on the boards during the select solder process? With a drop-jet fluxer you should be able to apply the flux very selectively and leave a fairly clean looking PCBA, assumin
Electronics Forum | Tue Sep 01 16:47:25 EDT 2020 | charliedci
The problem that we have seen applying NC flux (EF2210) at selective solder is that the flux overspray (relative to the nozzle path) did not see high enough temperature to activate the flux and turn it to a non-conductive, benign residue as one would
Electronics Forum | Thu Oct 08 13:26:46 EDT 2020 | SMTA-64387994
In particular we are looking to measure the repeatability of the voiding measurements for thermal pads on QFNs. There is some concern that given the nature of AXI programming with upper and lower boundaries set by a programmer to detect a defective s
Electronics Forum | Tue Sep 08 23:12:57 EDT 2020 | SMTA-64387687
Have you tried rotating the board 90 or 180 going into the oven? With inductive components there's a possibility of magnetic current buildup, that pulls the component to one of the pads. Although, I've only seen it on larger inductors. Also, the pres
Electronics Forum | Mon Sep 14 22:59:42 EDT 2020 | kylet
Looking to power up this board with 3v coin battery. I've tested this board with it and it works but to solder this on or make something that has clips for the attachment to power this up. Positive and negative connections are the circles on the inne
Electronics Forum | Tue Sep 29 21:39:07 EDT 2020 | kylehunter
Hi, We are currently working on a board that has 3x 50-pin THT at 1.27mm pitch each. This is too small for us to be able to consistently do on our selective solder. We are instead considering pin in paste. The connector we are using can be spec'd at
Electronics Forum | Tue Dec 15 09:26:37 EST 2020 | stivais
Have you tried cutting the leads shorter (or lift the connector slightly) so that they barely protrude at the other side of the PCB? Just for testing purpose, for mass production you should find a connector with shorter leads then. This should help w
Electronics Forum | Thu Oct 08 11:41:19 EDT 2020 | essusa
Not a sales pitch, just an update, the Essemtec jet print solution is maturing fast based on a lot of customer testing. It is fully capable to replace printers for prototyping and NPI. Being adaptive to different paste suppliers and different compone
Electronics Forum | Tue Oct 20 20:23:48 EDT 2020 | stephendo
I think temperature is the most under appreciated parameter. I'm not saying that it is the most important parameter, Just that a lot people do not give it the consideration it needs. I don't think it mattered as much in the old days of saponifiers an
