Cool! Thanks. Thats some information that is much easier to understand.
I know that the tests suggested minimal heat spreading. And I appreciate you doing the images like that. Thank you.
Does the IHS actually spread the heat at all? OR is it the Cascade base spreading the heat. The only reason I even ask is... the heat could be coming strait to the copper into the cascade. The copper base could actually be spreading that heat way from the center. OR we could look at it and say, the IHS spread that heat from the center. Did you have any theories on what was doing the spreading? Which component to you contribute to the ring to the right side?
If the IHS spread that heat on the right side by 30-40% beyond die, then that would suggest that one some areas the IHS can be quite effective when dealing with hot spots. (the other sides showing only 10-15% spreading over 1.5mm IHS thickness) That much spread out to the side suggests that it was VERY effective where the heat load was greatest. That places a new light on an "efficient heat spreader".
Alternatively, if the right circle was a function of being spread by the cascades copper.. (perhaps the block was mounted rt side up and the heat somehow traveled that way) then the IHS not being effective in transfer would be a more realistic conclusion. I don't belive the cascade would have spread one way.
Do you see why I was asking? I'm afraid I may not have been clear earlier as to my questioning. Thoughts? I think its possible that the picture may have shown the opposite conclusion.. (maybe?).
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