摘要:
A semiconductor device comprising: a semiconductor substrate (10), a dielectric film (18) formed on the semiconductor substrate, a first electrode (2) and a second electrode (3) separated from each other on the dielectric film; a spiral thin film layer (6) having both ends connected to the first electrode and the second electrode, respectively, the spiral thin film layer surrounding the first electrode, the thin film layer being formed on the dielectric layer, and a plurality (51) of p-n diodes (4,5) such as Zener diodes formed in series in the spiral thin film layer along a longitudinal direction of the spiral thin film layer to provide a uniform potential distribution in the spiral thin film layer.