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 | 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 | 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 | 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".
Electronics Forum | Wed Nov 04 08:17:23 EST 2009 | bobpan
Is there any sticky residue on the top of the part? Or maybe it has something to due with magnatism and maybe you could source a plastic nozzle instead of using the standard machine nozzles. Good Luck
Electronics Forum | Wed Mar 13 17:13:36 EDT 2013 | isd_jwendell
On an Essemtec machine I solved my sticky tape problem by routing the cover tape different than normal so that it pulls back more instead of up. I'm not familiar with your feeders and don't know if that is even a possibility.
Electronics Forum | Fri Nov 03 11:36:34 EST 2006 | mika
Hi, It is good news to "hear" that You found the problem. This control board has also broken for us once but we had a broken camera unit from where we took this board as a replacement. Unfortunately I was not able to find the circuit diagram (among a
Electronics Forum | Wed Aug 02 17:19:49 EDT 2006 | flipit
Yes 0402 8X4 embossed feeders exist for Panasonic MSR, Universal GSM, Contact Systems, and Mimot for sure. In the old days of 0402 components, 0402 resistors used to come in 8X4 paper tape but now I think most 0402 resistors and capacitors come in 8
Electronics Forum | Tue Aug 01 15:31:12 EDT 2017 | emeto
Agreed with Thomas i increase wait time when picking and slow down Z axis. If you think it is the tape, I would suggest you send one tape to a company that puts parts in tape. let them use different pocket and compare result. If the part is sticky an
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