Electronics Forum | Wed Mar 02 12:39:02 EST 2022 | stephendo
Go with the machine manufacturer's recommendations. And remember there are no hard and fast keep out areas. You can go a little tighter than they suggest but it is risky.
Electronics Forum | Thu Mar 03 14:01:16 EST 2022 | chris007
Hello Baking before solder pasting and reflow actually due to poential moisture development. This is JDEC requirement I believe to do so. We AOI after cleaning so we AOI a clean PCBA
Electronics Forum | Thu Mar 31 11:12:39 EDT 2022 | proceng1
I feel like any chemical that will remove the solder will be much more detrimental to everything else. I have also never had to re-program an IC after reflow.
Electronics Forum | Wed Apr 06 11:17:02 EDT 2022 | proceng1
Because it was recommended by the machine manufacturer. Sup 75 is also very corrosive. It basically ruins any tools that touch it if they aren't cleaned properly. I am ordering some of that powder to try.
Electronics Forum | Thu Apr 21 17:37:06 EDT 2022 | emeto
I would think this is not possible. If you can atack the solder alloy, I would assume this chemistry will destroy everything else before it gets to the metal.
Electronics Forum | Mon Apr 25 14:44:26 EDT 2022 | dwl
You could try putting a dot of adhesive like Loc tight chip bonder or similar between the pads. The adhesive will cure before the solder paste hits the reflow temp and hold the LED in place.
Electronics Forum | Thu Apr 28 09:01:38 EDT 2022 | saberbouras
I have a solder paste fridge; my question is what is the type of this connector so I can use it to attach a warning light. And is it a power source or is it a dry contact relay output?
Electronics Forum | Wed May 11 20:38:18 EDT 2022 | donovan03608
The leads on the FPC are pre-tinned on both sides with SAC305. The receiving leads are AU. We do not experience any wetting issues that would suggest oxidation.
Electronics Forum | Wed May 11 20:41:53 EDT 2022 | donovan03608
The leads on the FPC are pre-tinned on both sides with SAC305. The receiving leads are AU. We coat all surfaces with Kester 979 no-clean flux dispensed via pen prior to initiating the hotbar cycle.
Electronics Forum | Wed May 11 20:43:42 EDT 2022 | donovan03608
The leads on the FPC are pre-tinned on both sides with SAC305. The receiving leads are AU. We do not experience any wetting issues that would suggest oxidation.
