Electronics Forum: second reflow (Page 1 of 79)

Connector is falling down in the second 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?

Connector is falling down in the second reflow

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

Connector is falling down in the second reflow

Electronics Forum | Mon Feb 24 01:40:05 EST 2020 | sarason

Traditionally these connectors are riveted to the board on higher volume telecommunication applications. sarason

Connector is falling down in 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?

Connector is falling down in the second reflow

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?

Connector is falling down in the second reflow

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.

Connector is falling down in the second reflow

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.

Connector is falling down in the second reflow

Electronics Forum | Wed Feb 12 12:58:09 EST 2020 | emeto

No to redesign, no to glue dispensing and no to pallets. Now you should change gravity ...or pray :) I am interested to see what other solution you can come up with.

Connector is falling down in the second reflow

Electronics Forum | Wed Feb 12 16:38:58 EST 2020 | majdi4

Hahaha we already praying.. There is always a solution for any problems.. That's why am trying to do brainstorming with you all.. It's a pleasure to share ideas

Connector is falling down in the second reflow

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?

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