| 摘要 |
PROBLEM TO BE SOLVED: To provide an acoustic transducer capable of suppressing the occurrence of a phenomenon where a pull-in state is not canceled even by stopping voltage application.SOLUTION: An acoustic transducer 10 includes: a back plate 20 including a stationary electrode 23; a diaphragm 13, as a movable electrode, opposing the back plate 20 while interposing a void therebetween; and a plurality of stoppers (24a and 25) protruding from a surface of the back plate 20 closer to the void. Each of the stoppers includes a conductive part (25) which is electrically isolated from the stationary electrode 23 and may be brought into contact with a surface of the diaphragm 13 by deforming the diaphragm 13. |
