| 摘要 |
An electrostatic discharge protecting circuit includes a trigger circuit and a protecting transistor. The trigger circuit includes a capacitive element and a resistive element and connected between two power source lines. The protecting transistor is connected in parallel with the trigger circuit and has a control electrode connected to an output terminal of the trigger circuit. The trigger circuit has an MIS capacitor as the capacitive element, and the resistive element is composed of an upper electrode of the MIS capacitor. In addition, a semiconductor device has the above-described electrostatic discharge protecting circuit protecting an internal circuit connected between two power source lines.
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