Quote:
Originally Posted by GriffinRU
Try to take an infrared picture of your ESC with and without copper plate, I do not really care about arctic silver...as long as you can keep it as flat as possible, you can use graphite if you can maintain below 0.005". You know there is a step with sand paper right, not only for adhesion.
Sure, there are even better things you can do. If your R&D budget can afford 2 month clean-room run, I can share with you what can be better and we can talk patenting...
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I have IR pictures of the ESC, and a copper plate doesn't make any significant difference on the 6oz board... the older 4oz board was a different story. And, a copper pin fin heatsink is actually an easier mod will have
much more effect than a copper heat spreader.
BTW -- we are using the temp sensor on the processor -- so make sure any mods you do reduce the temp difference between the FETs and the processor, not the opposite.
What does that mean -- 2 month clean-room run? Are you thinking about getting On Semiconductor to give us some Fab time, or what?