Microphone and manufacturing method of microphone

A microphone comprising:

• a plurality of vibration membrane electrodes arranged on a circular area centered on a reference point to be spaced apart from each other;
• a plurality of fixing membrane electrodes that respectively faces the plurality of vibration membrane electrodes and forms a plurality of unit capacitors along with the facing vibration membrane electrodes;
• and
• a plurality of vibration membrane patterns arranged corresponding to the plurality of vibration membrane electrodes, respectively, for transmitting vibration by a sound source to the plurality of vibration membrane electrodes,
• wherein the plurality of unit capacitors generates a plurality of unit output signals according to inputs of a power source and the sound source, and outputs a signal combining the plurality of unit output signals as an output signal corresponding to the sound source, and
• wherein the plurality of vibration membrane patterns include a plurality of concentric grooves in which a center is located at the reference point.