Patent ID: 8121315

Claim:
A condenser microphone chip, comprising: a substrate; a diaphragm spaced from the substrate; a curved beam connected with the diaphragm to anchor the diaphragm to the substrate; and a curved beam connecting part having a shape of a substantially circular plate, wherein the curved beam is arranged in the diaphragm, and wherein each curved beam includes a plurality of sub beams, each of the plurality of sub beams including a first sub beam portion extending in a substantially radial direction from a circumference of the curved beam connecting part; a second sub beam portion extending in a substantially circumferential direction from an end of the first sub beam portion away from the circumference of the curved beam connecting part and having a shape of a substantial arc; and a third sub beam portion extending in the radial direction from an end of the second sub beam portion away from the first sub beam portion and connected to the diaphragm.