Electronics Forum | Mon Oct 09 21:22:10 EDT 2023 | emeto
You can try expensive wash pallet that protects the part in question, or you can solder with NC solder after all wash is done.
Electronics Forum | Fri Nov 03 21:16:40 EDT 2023 | calebcsmt
Depending on the assemblies you're producing, I highly recommend 8.9HF from Indium for a low residue SAC305 alloy. We have been using this for years in our NC process and residues are very little, with appropriate stencil apertures and paste printing
Electronics Forum | Thu Oct 05 13:48:20 EDT 2023 | tommy_magyar
Whatever the cleaning process is or will be, after cleaning make sure you check on X-Ray for any solder balls/debris in microphones. This is a friendly reminder to check, unless you want to receive customer complaints. Been there, seen that - we went
Electronics Forum | Tue Oct 03 18:09:06 EDT 2023 | glasscake
Try a liquid latex masking material. Youll most likely have to cover the hole with kapton, really drench the thing in the liquid latex to prevent the ultrasonic from damaging it then bake it at 50-70c for about 2-4 hours. With no bake its usually a 2
Electronics Forum | Sun Oct 01 23:46:24 EDT 2023 | seonr
Hey folks, I have a few designs that I'm using a MEMS I2S microphone on, and the PCBs have to be cleaned as I use water based SAC305 - but the supplier states to NOT ultrasonically clean their microphones. Has anyone here been through the process of
Electronics Forum | Mon Oct 02 21:16:05 EDT 2023 | seonr
Thanks for the suggestion. Unfortunately, there are 2 issues with adding them after: - The first is that doesn't scale to 1000's of board - The second is that half (or more) of the boards are double sided, complete PCB coverage on both sides and nee
Electronics Forum | Fri Oct 06 20:02:07 EDT 2023 | chicagoindustrial
I agree with everyone here that says microphones are meant for no clean processes. Nothing will protect the device from an inline or batch wash. The mic should have been mounted on a different board if it must be washed. The one suggestion I have is
Electronics Forum | Thu Oct 12 21:45:21 EDT 2023 | daniel_stanphill
This is a very challenging situation indeed. Have you tried contacting the manufacturer of the component? I know of one time in the past we had a reflow issue and contacting the manufacturer actually proved insightful. I have seen claims using Diamon
Electronics Forum | Thu Oct 05 13:24:42 EDT 2023 | rgduval
So, a couple of things... First, you're asking about water washing a part, but, note that the manufacturer says to NOT ultrasonically clean their microphones. Those can be two different cleaning types...assembly shops using water wash may not be us
Electronics Forum | Thu Oct 12 21:32:12 EDT 2023 | seonr
Hey Rob, I am the designer and manufacturer of my own products - and I clean every product that leaves my premises because I hate receiving products with flux residue on them, so I wont ship products that way - It's my own standard I imposed on myse
