Electronics Forum | Fri May 13 22:16:16 EDT 2022 | alex22
Indeed, stickiness of LED dome varies from batch to batch. We didn't have much success with adjusting pick&mount settings. Also, usage of other nozzle (recommendation from SMT manufacturer) didn't help. Usually, we have a good experience with similar
Electronics Forum | Thu Aug 03 20:51:27 EDT 2017 | OrHorti
I did a test where the leds were put into a 95% humidity at 60 degC environment for an hour, and after that almost all leds would stick into the carrier tape. So, moisture might certainly play a major role in the stickiness of the leds. We placed al
Electronics Forum | Mon Nov 18 19:54:52 EST 2024 | tey422
Can you repackage them using tape & reel? Add the masking dots on top of the LED would do the trick.
Electronics Forum | Tue Nov 19 10:24:12 EST 2024 | suum
One option is to put the coil in the refrigerator (tried it works), but everything is at your own peril and risk.
Electronics Forum | Wed Nov 20 11:34:53 EST 2024 | oxygensmd
There are one more try on silicone surface LEDs. Use rotated nozzle on LED. Catch them on shorter side and not on longer side. Turn off pick-up vaccum if the nozzle have bigger surface as LEDs have - false vaccuum response. Keep turn on placement vac
Electronics Forum | Tue Nov 19 02:15:35 EST 2024 | auriga2001
Since you are using Siplace X series equipment, have you checked the Siplace ProDesk software for the component shape settings for that part? There is a section in 'handling' that has 'placement air kiss' settings. That gives a little burst of air to
Electronics Forum | Wed Mar 13 09:11:48 EDT 2013 | smt_guy
Hi All, Need your advice / help. We have assembleon pick-and-place machines and we got some pick-up issues on certain LED's that are Dome Type. The LED's get off from the tape pocket during feeding due to the dome of the LED sticks on the tape surfa
Electronics Forum | Tue Nov 19 10:31:39 EST 2024 | carl_p
I have the pleasure of dealing with LED placements daily with many LED suppliers. What is the temp & humidity of your facility, i have found this to be the biggest impact when placing "tacky" LED's cree are wonderful as the temps increase. to the po
Electronics Forum | Mon Nov 18 09:38:58 EST 2024 | dimamalin
Hello everyone, We're currently experiencing an issue with placing Kingbright ATS2013UV385 type LEDs on our PCBs using Siplace X equipment. The component has a sticky silicone coating on its surface, which causes it to adhere to the nozzle, preventi
Electronics Forum | Wed Aug 02 10:13:24 EDT 2017 | proceng1
Are the parts kept in a humidity controlled environment ? Perhaps a little humidity is making the silicon "sticky".
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