Electronics Forum | Tue Feb 11 04:08:51 EST 2020 | majdi4
we have a problem : The connector is falling down in the second reflow. This connector is mounted in the first side. You can find attached the reflow profil we work with and a photo of the connector. We tryed with under_film but the connector is sti
Electronics Forum | Wed Feb 12 19:06:28 EST 2020 | SMTA-Alex
I see that the connector has plastic alignment pins. Is there any reason you can squirt a drop hi-temp "Crazy" glue into each hole, after the bottom side assembly and before printing the top side?
Electronics Forum | Wed Feb 12 10:17:15 EST 2020 | emeto
Would you consider a light reflow pallet on second side holding the connectors in place and preventing them from moving?
Electronics Forum | Wed Feb 12 02:38:02 EST 2020 | majdi4
Hi there , I agree with phil .. but we cannot change the architecture of the card to mount the connector on the 2nd side. Steve , we are producing large series, so we can't manually ship bond the connector .. for the moment, we cannot invest in a gl
Electronics Forum | Wed Feb 12 07:25:47 EST 2020 | dontfeedphils
If you have control of the solder alloy you're able to use on the product, you could run a lower temp solder on the second side and try to avoid the first side entering reflow.
Electronics Forum | Tue Feb 11 07:35:03 EST 2020 | dontfeedphils
If all else fails, you can always chipbond the part. Would it be possible to run this side as the second reflow?
Electronics Forum | Wed Feb 12 10:11:05 EST 2020 | emeto
Would you consider a light reflow pallet on second side holding the connetors in place and preventing them from moving?
Electronics Forum | Wed Feb 12 08:10:49 EST 2020 | majdi4
We can't do that because we are using dual ligne reflow oven..So the two sides of PCB are soldered with the same reflow profil.
Electronics Forum | Wed Jan 08 16:27:11 EST 2020 | rmitchell
We have a PCB with the dual sided connector that slides on from the edge and has leads on the top and bottom sides of the PCB. It has 20 leads on each side of the PCB with with about .8mm pitch. The PCB also has a gold grounding strip on the edge fo
Electronics Forum | Thu Oct 24 17:34:38 EDT 2024 | duchoang
You should build the bottom side first. The other side has connectors, if you build first, that would be hard for printing solderpaste for the second side. No problem with the BGA if you use rails in oven. Do not send the boards into oven directly on
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