16mm Nano-materials Base Plate For CREE XHP50/XHP70 LED Emitters

Any info on this?



Sinkpad XHP70 6V 16mm Copper MCPCB

That’s funny! But seriously, I’d take a cut-down Sinkpad over a non-DTP “base plate” any day!

Marketing BS.

Ooh, Nano Materials!! That and some liquid nitrogen may keep it cool at 4A…

As a nanomaterials chemist this made me laugh. There is nothing inherently good (or bad) about nanomaterials. Used in this way, it is just a marketing buzzword.

Welcome to BLF Pedro. :party:

Thanks Halo. I have lurked here for a while, had to join to respond to this.

Instead of ramping up on mockery, by this time some of you could already have done some tests on those “nano” plates. :FACEPALM:

Yesterday I took a peek on this:
Cambridge Nanotherm launches Nanotherm MCPCB for reduced LED die temperatures
Home | Cambridge Nanotherm Ltd



Ok, so from what I’m gathering, the nano material is not electrically conductive, yet has higher thermal conductivity. The only advantage I can see from this it the tiny sliver of space between the thermal contact of the LED and the cathode/anode connections. It seems to me that this wouldn’t offer any improvement over a typical sinkpad. Maybe it’s a little bit better than your standard aluminum mcpcb, but if I’m going for performance, I’m gonna go copper every time.

Instead of ramping up the marketing materials void of any real info, you could let us mock all we want. :wink: But seriously, prove that this nano layer can compete with even an Aluminum DTP board, and I’ll be impressed. Good luck trying to compare it to a Copper DTP board!

After having said that, this nano substrate may still be good news for emitters that don’t have a thermal pad, and therefore can’t use DTP boards, like the new Nichias we read about lately.

Well, this seemed somewhat interesting to me because it’s cheaper than a non-DTP copper base plate, and should significantly outperform it.

However, if we get into modding… mmm, it should be pretty easy to carefully sand those central pads with a piece of 800-grit sandpaper stuck over a flathead screwdriver’s head, and then reflow a bickel sliver of solder over it, doesn’t it?

$1’25 for a 10-pack of standard star baseplates, a little bit of sanding, a minute or two to cook ’em all… sounds good! Doesn’t it?
If anyone is interested, I’d sell them for €1/each afterwards if the shipping cost is low enough… LOL!

Cheers ^:)

Well, not to be argumentative, although I sometimes tend to be… But, if you’re going to mod the ‘base plate’ into a sorta DTP, then why not do that with one that is cheaper and doesn’t claim to be made out of nano materials? Like, the one that comes with the emitter already. Of course, you could say that the thinner layer of nano ceramic would be easier to sand away and would take less solder to replace than the dialectric layer of normal stars. And then, there is still whatever benefit you get from the thermally conductive nano layer under the electrical traces, which obviously could never be DTP. But ultimately, for the real hot-rod lights, aluminum stars, even DTP ones, are not good enough. Copper conducts heat twice as well as aluminum. Even a thermally conductive nano layer can’t beat that, because it still just takes the heat to the metal back, which is aluminum.

The more I think about it, though, the more I want to see a MCPCB made for the Nichias which lack thermal pads, using this nano layer technology. :smiley:

It definitely sounds like an upgrade from normal dielectric mcpcb’s and should do well in many applications that don’t use solder to attach the board(s). Copper still has the advantage in both thermal conductivity and its ability to solder to a copper sink but that comes with a weight penalty. For some, moderate performance coupled with the savings in weight will be seen as an advantage rather than a liability.

That’s what I was saying: $1’25 for a 10-pack, those nano-plates are over a buck per piece.
But now that I think of it, it probably isn’t worth the pain because aluminium is tricky to be soldered, I’m not sure if a droplet of olive oil would work well for protecting the sanded pad against oxidation while the base plate is cooked on the pan with the bickel sliver of solder over it…
Wait, olive oil’s smoke point is around 207º, seems perfect! :crown:
Anyone tried this?