Electronics Forum | Sat Jun 04 01:32:09 EDT 2005 | adlsmt
Has anyone tried to use electrically condctive adhesive rather than solder to connect the leads on 5 watt Luxeon parts? If you design the board right to dissipate heat, when you have a bunch of them in a tight array, even with thermal relief on the t
Electronics Forum | Fri Aug 31 07:42:05 EDT 2007 | geb
Hi, This is for a Universal GSM1. Is there a way to make a nozzle rotate to the same point before picking the next component up. It is because we are trying to pick & place a rectangular component (Luxeon Rebels) with a rectangular nozzle. The nozzl
Electronics Forum | Tue Mar 30 17:52:15 EDT 2010 | cusackmusic
They are very finiky. If you have good solder paste, and a slight down pressure, to make sure the LED is "stuck" to the board, you should be able to place it. Pick it up on the center of the flat, NOT the lens. Even with the vacuum turned off, t
Electronics Forum | Wed Mar 31 02:49:43 EDT 2010 | sibbe
yes, we are also picking it up on the flat part of the component. So we won't damage the dome. Just as discribed on the assembly and handling data sheet. Because the component is picked up out of the centre, it gets instable when picking it up out of
Electronics Forum | Thu Apr 01 02:27:35 EDT 2010 | sibbe
Thank u for al of the reactions. I'm wondering if there are other manufacturers that use rectangular nozzle's. Because when I look at the LED when it's in the reel, I doubt it could get picked up like that. I seriously doubt that there is anyone he
Electronics Forum | Wed Apr 27 04:49:16 EDT 2011 | geb
Hi Does anyone place the Rebel ES? It is the same as a Rebel except it has a raised bit near the edge of the flat area. I normally pick up the Rebel in the flat area using an 0805 style nozzle (Samsung CP45 CN065) but this raised bit makes it unrelia
Electronics Forum | Fri May 20 09:13:58 EDT 2011 | ck_the_flip
We have issues with the Philipps Luxeon Rebel LED where the part sticks to the cover tape during advancement. This causes the part to get flopped around in the pocket or the component gets dropped and damaged when the feeder advances. Has anyone ex
Electronics Forum | Tue Nov 09 16:12:17 EST 2004 | davef
Thermally conductive epoxies are rarely used to hold components in-place. They are more likely used as fillers between two surfaces. Yes, single part glues without an activator are available that are suitable for screen printing or dispensing. Som
Electronics Forum | Thu Nov 11 02:59:03 EST 2004 | Base
Hi Charlie, In case you're processing large quantities of lumileds you may want to have a look at the Assembleon FS machine. It is an FCM machine of only half the length with some dedicated robots on it. In stead of all Pick&Place robots it 2 dispen
Electronics Forum | Wed Jan 18 16:30:30 EST 2006 | davef
380SR-flux gel is sold by Cobar. Look here: http://www.lumileds.com/pdfs/AB10.PDF This application note suggests: * �#1;Metals 390DH4 * �#1;Metals LR735 * �#1;Metals NS4029 * ESP 6#1;412 * Cobar 380SR#1;flux gel Comments are: * "�#1;Metals" is "A
