In this study, we assessed a semiconductor (silicon or GaN)-on-diamond (SeOD) structure and compared it with a conventional silicon on insulator (SOI) structure, i.e., diamond, for power-supply-on-chip (power-SoC) applications by numerical simulations. The SeOD structure has thermal advantages over the conventional SOI structure without degrading electrical characteristics even using a thin diamond film (0.3 μm).
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