Patent ID: 8106730

Claim:
A microswitching device comprising: a base; a fixed portion joined to the base; a movable portion extending along the base and having a fixed end fixed to the fixed portion, the movable portion including a first surface facing the base and a second surface opposite to the first surface; a movable contact electrode film provided on the second surface of the movable portion; a pair of fixed contact electrodes each joined to the fixed portion and each having a region opposing the movable contact electrode film; a movable driving electrode film provided on the second surface of the movable portion, the movable driving electrode film on the second surface being thinner than the movable contact electrode film on the second surface; and a fixed driving electrode having a region opposing the movable driving electrode film, the fixed driving electrode being joined to the fixed portion; wherein the movable contact electrode and the movable driving electrode are made of a same material, and wherein each of the movable contact electrode and the movable driving electrode is provided, as a whole, on the second surface of the movable portion, so as not to extend beyond the second surface toward the first surface of the movable portion.