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Yes, although this can be an extra challenge in monolithic 3D because it often involves oxide layers and thin silicon * between transistor layers, which makes
by deepnotderp 8y ago
Yes, although this can be an extra challenge in monolithic 3D because it often involves oxide layers and thin silicon * between transistor layers, which makes the heat conduction much worse.
*due to violation of Fourier theory of heat.
- Hasz 8y agoHow difficult would it be to replace current oxide layers with something like BeO?
- deepnotderp 8y agoI don't think anyone's tried but there can be all sorts of "fun" issues, e.g. directly putting many high-k oxides onto transistors results in fermi level pinning. EDIT: I did look at this idea some time back and I believe AMD even has a patent on it (though I might be mistaken), it's possible, but might cause unexpected issues.
- Hasz 8y agoThanks -- any recommendations on a textbook for better understanding semiconductor physics? I'm a physics major, but haven't gotten to do much semiconductor coursework yet.
- deepnotderp 8y agoSo the issue is that stuff like this (e.g. Fermi level pinning induced by HfO2 directly on Si without a metal gate) tends to be industry "secret" stuff and tends to not be in textbooks. You'll usually catch this info from talking to process engineers and reading papers.
- agumonkey 8y agothe same toxic ceramic than in magnetron ? .. scary