Electronics Forum | Tue Aug 14 10:53:15 EDT 2007 | rgduval
Should be do-able. Check out a couple of things: 1. Temperature tolerance of the LED's. If they can't withstand reflow, then you won't be able to do it. 2. Height of the LED's versus the travel of your pick/place. If your pick/place head won't t
Electronics Forum | Mon Jul 07 00:22:38 EDT 2003 | sam
Thanks for all the answers. I should clarify that the problem was found to be on the SMT LED gold plating, instead of PCB gold plating. We had confirmed this problem by running some DOE experiments and some reliability testings. We had decided to d
Electronics Forum | Tue Jan 09 14:15:43 EST 2018 | tozitom
Hi SMTnet, I'm newbie here and searching for information on a pcb reconvertion. So in order to reduce costs on a small pcb+ componentes+assembly I need your experience on assembling only SMT components vs SMT+TH; the point is actually my PCB has abou
Electronics Forum | Fri Jul 04 21:09:04 EDT 2003 | ramanandkini
I have a CEM-1 PCB board with 35 microns copper. This is PCB is finished with SMOBC+HALS. We do solder SMT LEDs, but till date we do not have problems that you have listed. The LEDs are good & bright. It even passed high & low temp cycle tests (-40 t
Electronics Forum | Sat Sep 13 08:35:14 EDT 2008 | davef
2.0V at 0.1mA for InGaN product and >1.4V at 0.1mA for AlInGaP product." It's common for ESD protection programs to conform to ANSI/ESD S20.20 - Protection of Electrical and Electronic Parts, Assemblies and Equipment (Excluding Electrically Initiate
Electronics Forum | Tue Sep 24 12:49:43 EDT 2002 | dragonslayr
Aperture reduction @ 5 mils thickness is your best bet. It may take several attempts to get just the right paste volume. What aperture reduction was specified to the stencil house for these specific LEDS? or was the stencil blindly produced using a
Electronics Forum | Wed Sep 25 05:08:33 EDT 2002 | msimkin
Gregg, We had a similar problem with our 0603 leds. They were being placed bang on, however, during the reflow, they twisted, fell sideways etc. We played with our profile, played with the paste volume & land pattern design, and only had a small impr
Electronics Forum | Thu Nov 14 12:11:00 EST 2002 | V.RAMANAND KINI
I am looking for a reflective coating on PCB. I have designed a PCB with SMT type side LEDs and Top LEDs. The light from these LEDs fall on to a lens profile on top of these and get mangnified and reaches the dashboard instrument's pointers. I tried
Electronics Forum | Tue Aug 07 05:21:12 EDT 2012 | glichn
Hello Joe, PCB size 6" *6" is larger board. Resistors and LEDs are easy to do assembly. I think you can ask Beijing Glichn, from PCB stencil printer, SMT reflow oven and LED pick and place machine, they can give some suggestion. The investment is de
Electronics Forum | Tue Aug 07 05:29:13 EDT 2012 | glichn
Hello Joe, PCB size 6" *6" is larger board. Resistors and LEDs are easy to do assembly. I think you can ask Beijing Glichn, from PCB stencil printer, SMT reflow oven and LED pick and place machine, they can give some suggestion. The investment is de
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