| 摘要 |
A semiconductor device including: a SiC substrate; an AlGaN layer formed on the SiC substrate; a source electrode and a drain electrode formed on the AlGaN layer so as to be spaced from each other; an insulation film formed between the source electrode and the drain electrode and having a band-like opening in parallel to the source electrode and the drain electrode; a gate electrode formed at the opening in the insulation film; and a drain-side field plate electrode formed integrally with the gate electrode on the drain electrode side of the gate electrode and having a drain electrode side end portion spaced from the insulation film, thus restraining degradation in performance.
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