Patent ID: 8422703

Claim:
A microphone comprising: a substrate comprising a backplate, wherein the backplate further comprises a plurality of throughholes, and wherein the backplate forms a fixed plate of a variable capacitor; a diaphragm assembly supported by the substrate, the diaphragm assembly including at least one carrier, a conductive diaphragm, and at least one spring coupling the diaphragm to the at least one carrier, the diaphragm and the at least one spring configured to enable the diaphragm to move up and down in response to an incident acoustic signal when the microphone is in operation, the diaphragm being spaced from the at least one carrier; and at least one insulator between the substrate and the at least one carrier so as to electrically isolate the diaphragm and the substrate, wherein the diaphragm forms a movable plate of the variable capacitor.