Patent ID: 7223136

Claim:
A condenser microphone comprising a metal cylindrical capsule which has a sound wave passing opening formed at one end and in which a substrate 3 is housed, the substrate 3 having at least a diaphragm, a rear pole, and an impedance converting circuit mounted on the substrate 3 , the other end of the cylindrical capsule being caulked to an outer surface of the substrate 3 to form a caulking portion 611 to fix parts inside the capsule together, wherein the substrate 3 comprises: a first metal member 200 formed by folding a plate-like metal having a planar periphery portion 1 b against which the caulking portion 611 is abutted, a first connection terminal 12 G integrally connected to the planar periphery portion 1 b and located on an inner surface of the substrate 3 , and a ground terminal 11 integrally connected to the planar periphery portion 1 b and located on the outer surface of the substrate 3 more than the caulking portion 611 ; a second metal member 201 formed by folding a plate-like metal having a second connection terminal 12 S located on the inner surface of the substrate 3 and an external terminal 10 integrally connected to the second connection terminal 12 S and located on the outer surface of the substrate 3 and on the same plane as that on which the ground terminal is located; and a resin mold portion 2 which integrates the first metal member 200 with the second metal member 201 and which exposes the first connection terminal 12 G and second connection terminal 12 S in the substrate, the resin mold portion exposing an outer surface of the planar periphery portion 1 b , the external terminal 10 , and the connection terminal 11 from the outer surface of the substrate.