Electronics Forum | Fri Oct 22 19:52:47 EDT 1999 | Garth Monlux
I need to know the recommended pad layout for a 44r package. The part is an atmel flash AT49F004. Is there a standard that I can look at?
Electronics Forum | Mon Oct 25 15:38:00 EDT 1999 | Dave F
Garth: There is no standard. Try the component supplier for a first cut at the pad layout. They should know better than anyone. Good luck. Dave F
Electronics Forum | Fri May 13 15:01:29 EDT 2005 | GEB
Hi, The brightest ones that I use are Luxeon LEDs which are rated at 5W, which is pretty bright for an LED, you can't look at them when they're on. Heres the link http://www.luxeon.com/gallery/?filter=luminaires
Electronics Forum | Mon May 23 16:36:27 EDT 2005 | dphilbrick
What is your application / need. I believe I could get you SMT LED's brighter and more cost effective than any of those.
Electronics Forum | Mon Jun 06 04:32:05 EDT 2005 | Rob
Yes, Loctite 3880. It works out at about $160 for a tube of 30ml. It can be dispensed or printed. We found you needed a lot less than with solder as it doesn't wick or spread much.
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 | Mon Jun 06 09:59:47 EDT 2005 | Rob
We did the trial by dispensing (both the thermal & the electrical), but in production I would definitely use a stencil for the Conductive adhesive, as the shape, spread & volume of the adhesive is critical. (No wicking or spread) We also looked at
Electronics Forum | Fri Apr 12 16:30:21 EDT 2002 | stepheno
If you are going to wavesolder the board after SMT you will have to epoxy the parts on instead of paste/reflow. I used to work for a company that squeeged it on. You will have to research component layout guidelines if you do want to wavesolder. If
Electronics Forum | Mon Jun 06 09:05:02 EDT 2005 | cmiller
How do apply it in your process? It would seem best to screen the electrically conductive epoxy then dispense the thermally conductive epoxy to bond the part to the heat sink pad. Any help or opinions would be appreciated. I dont think the System Uni
Electronics Forum | Mon Jun 06 10:02:39 EDT 2005 | cmiller
How do apply it in your process? It would seem best to screen the electrically conductive epoxy then dispense the thermally conductive epoxy to bond the part to the heat sink pad. Any help or opinions would be appreciated. I dont think the System Uni
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