| 摘要 |
PROBLEM TO BE SOLVED: To provide a semiconductor device having a protective circuit for compensating a decrease in the withstand voltage of an internal circuit, and deterioration in resistance and a decrease in resistance against static electricity discharge in the protective circuit accompanied by process miniaturization, and to provide a method therefor. SOLUTION: A mechanical switch 1 is provided in a semiconductor device, for example between an input terminal 3b and a grounding terminal 3c, to protect the entire semiconductor device. The mechanical switch physically has a movable part and a contact, and has basic characteristics as a switch such as on-resistance and a capacity between contacts when the switch is turned off that are much better than those of a switch made of a semiconductor element, thus achieving an appropriate protective circuit by using the mechanical switch as a switch for protecting against ESDs. COPYRIGHT: (C)2006,JPO&NCIPI
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