Microphone and mounted microphone structure

摘要

A microphone (30) contains a capacitor in a capsule (31) with a diaphragm (33) serving as one of electrodes of the capacitor. The microphone (30) is mounted on a mounting board (50) when external terminals (42, 43) installed on an external surface of a circuit board (32) which closes an opening of the capsule (31) are connected face to face with connection terminals on the mounting board (50). A sound hole (39) is formed in the circuit board (32) and through-hole (53) is formed in the mounting board (50), being placed in such a position as to avoid overlapping each other when the microphone (30) is mounted. An enclosed space (52) which communicates the through-hole (53) and sound hole (39) is formed when the external terminals (42, 43) are connected with the connection terminals on the mounting board (50).