| 摘要 |
According to a semiconductor device of the present invention, a layer of an electric insulator is provided on a semiconductor substrate. A connection pad having a part exposed to a layer surface is provided in the layer. A transistor structure opposed to the connection pad across the electric insulator is provided on the semiconductor substrate. The transistor structure comprises a polysilicon gate opposed to the connection pad across the insulator in the thickness direction of the layer, and a diffusion region provided outside of the respective opposed side edges of the polysilicon gate on a plane where the polysilicon gate is formed. As a result, according to the present invention, a power supply noise between I/O is absorbed and there is provided an excellent effect on an EMI and an EMS especially.
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