| 摘要 |
The central portion of a movable plate 40 is cut into a U shape to form a tongue 43 provided along the longitudinal axis of the movable plate 40, the tongue 43 is brought into close contact with an upper electrode face 31 of a heating resistor 30, a lower electrode face 32 of the heating resistor 30 is brought into contact with a fixed plate 10, and portions of the movable plate 40 located on both sides of a cut 46 operate as an elastic arm 47.
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