Electronics Forum | Mon Dec 09 21:00:39 EST 2019 | sssamw
Did you solve this issue? It doesn't much look like the flux dried out, ti should be across whole board and has much more same defect if flux dried out. Did you have failure ratio data to show the defect location, for example 10% at location A on bo
Electronics Forum | Thu Dec 12 17:48:21 EST 2019 | davef
You proved that the standard solderability test of components may be effective for assessing aged components. Curious Minds Can you get the authorization to use a more aggressive flux? Will that flux solve the problem? What's it going to cost to qu
Electronics Forum | Fri Aug 07 03:16:33 EDT 2020 | rsatmech
It's a BGA component. Missing ball is not possible because we have enabled the vision in pick and place. Solder paste is OM353 type 5 Possibilities of Flux dry before reflow seems valid but I saw the board data it was completed on time like other
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 | 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 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
Electronics Forum | Mon Jan 25 13:39:51 EST 2021 | grahamcooper22
Thanks for your reply. According to the manufacturer there isn't any palladium under the solderable coating on the chips...just nickel....i guess maybe the nickel is heavily oxidised. I have experienced the poor solubility (zero solubility at 210 deg
Electronics Forum | Mon Nov 22 12:35:43 EST 2021 | proceng1
I've seen their promo videos and machine specs. I'm wondering how the machines actually run. How hard is it to keep the nozzles clean to get a good wave? How are they about support and replacement parts? Any issues with software bugs? Feel free to e
Electronics Forum | Wed Mar 02 13:15:16 EST 2022 | chris007
I am currently working on a manufacturing flow where some PCBA are processed with reflow oven (after being baked before processing), then cleaned with bath, then passed into contaminometer, passed into AOI. The point is after all of this, if AOI dete
Electronics Forum | Fri Jul 22 11:47:01 EDT 2022 | tpratt
I got your email and responded a few times. I asked you another question via email, but you can ignore it if you find it because I managed to figure it out. I really can't thank you enough, I never would have figured out the calibration issue witho
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