| 摘要 |
A semiconductor device includes a semiconductor circuit and a capacitor, the capacitor including: a first semiconductor region of a first conductivity type, a second semiconductor region of the first conductivity type, the second semiconductor region being provided on the first semiconductor region of the first conductivity type and having a higher concentration of a first conductivity type impurity than the first semiconductor region of the first conductivity type, a semiconductor region of a second conductivity type provided on the second semiconductor region of the first conductivity type, a dielectric film provided on the semiconductor region of the second conductivity type, an upper electrode provided on the dielectric film, a first interconnection provided above the semiconductor region of the second conductivity type and electrically connected to the semiconductor region of the second conductivity type, and a second interconnection electrically connected to the upper electrode.
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