Electronics Forum | Fri Apr 15 14:43:52 EDT 2022 | djenkins62
Wanted to ask the SMT community if anyone has data on baking Clariant Desi Pak for 16 hours at 245 F. How are you cooling to avoid condensation reforming? Have you measured efficacy of desiccant after baked 10 times? 100 times 1000 times? 5000 t
Electronics Forum | Sun Apr 17 18:22:18 EDT 2022 | dekhead
Please clarify what you mean by "bouncing". Small up and down motions around home position? Full stroke of table movement up and down? Or somewhere in between? Does it start as soon as servo power is applied? Or not until table home movement is initi
Electronics Forum | Mon Apr 18 11:45:04 EDT 2022 | dontfeedphils
If you're 100% certain you have the correct nozzle for this package you could check to see if your PnP machine has an option for "Auto Adjust Pickup Position" or something along those lines and try changing it (if it's currently on, try turning it of
Electronics Forum | Mon Apr 18 12:06:03 EDT 2022 | dsmith
During the initialization process, the table will make small movements up and down, and occasionally go all the way up and back down again, then continue to bounce up and down maybe an inch of travel, it never completes initializing. I wasn't operati
Electronics Forum | Mon Apr 18 12:08:18 EDT 2022 | proceng1
So you run one side, and leave the boards sit in temperature controlled environment for 3 days before running the other side? Are they ENIG coated? If so, they are probably ok. You could always keep the boards in your hot room. I assume this is du
Electronics Forum | Mon Apr 18 12:39:57 EDT 2022 | winston_one
Thanks for all comments. Process was adjusted normally, problem was in PCBs. Microsection of bare boards confirm that the copper thickness in troughholes was unsuffient, sometimes below 10 microns, on soldered boards where there were a problems durin
Electronics Forum | Wed Apr 20 01:57:47 EDT 2022 | sn
@ProcEng1 Yea. Mostly is ENIG surface finished PCB. Sometimes there is OSP board faces issues like part shortages and is forced to hold the production and resume the second process after a few days. So, would like to know any special control on keepi
Electronics Forum | Wed Apr 20 02:04:07 EDT 2022 | sn
@charliem, For the clean process board using "water-soluble" fluxes, we will send the board to aqueous wash with DI water first if not able to manage to proceed with the second process within 24hours. Then, keep the board under room temper
Electronics Forum | Wed Apr 20 03:42:31 EDT 2022 | sophyluo1985
If you are currently using a Mirtec machine, then you will continue to choose this brand of machine when you replace the machine. If you are familiar with TRI, Koh young, these two brands are also good. Many clients are using them. If you need to kno
Electronics Forum | Mon Apr 18 19:58:22 EDT 2022 | cbeneat
I had the same question. We have custom nozzles made by Count on Tools. I believe we found urethane works the best for the silicon domed LEDs. Have you slowed the feed rate down on the feeder? Also adjust the top tape to the back slot on the feeder.
