Abstract:
The present disclosure discloses a sensitive diaphragm comprising a diaphragm body, an edge region of the diaphragm body being provided with a rim structure, wherein the rim structure is in a non-closed annular shape, a non-closed region is located at a part not closed by the rim structure, and the non-closed region are integral and continuous with parts of the diaphragm body adjacent to the rim structure. According to the sensitive diaphragm of the present disclosure, the annular rim structure is separated by the non-closed region.
Abstract:
A method of manufacturing a protection frame used in a miniature microphone is provided. In one embodiment, the method comprises the steps of: (1) preparing a substrate made of an insulating material with a prescribed thickness and a prescribed area; (2) forming a plurality of holes at prescribed intervals on the substrate; (3) forming a first metal shielding layer on the inner surface of each of the plurality of holes formed on the substrate; (4) filling an insulating material in the plurality of holes; (5) forming a plurality of extended portions on the surfaces of both sides of the substrate, each extended portion covering a part of the end face of the insulating material and the whole end face of the first metal shielding layer of a hole; (6) forming a cavity in each insulating material-filled hole, the caliber of each cavity being slightly smaller than the inner caliber of the corresponding extended portion formed in the above mentioned step (5); and (7) cutting the plurality of holes from the substrate to produce a collection of protection frames.
Abstract:
A method of manufacturing a protection frame used in a miniature microphone is provided. In one embodiment, the method comprises the steps of: (1) preparing a substrate made of an insulating material with a prescribed thickness and a prescribed area; (2) forming a plurality of holes at prescribed intervals on the substrate; (3) forming a first metal shielding layer on the inner surface of each of the plurality of holes formed on the substrate; (4) filling an insulating material in the plurality of holes; (5) forming a plurality of extended portions on the surfaces of both sides of the substrate, each extended portion covering a part of the end face of the insulating material and the whole end face of the first metal shielding layer of a hole; (6) forming a cavity in each insulating material-filled hole, the caliber of each cavity being slightly smaller than the inner caliber of the corresponding extended portion formed in the above mentioned step (5); and (7) cutting the plurality of holes from the substrate to produce a collection of protection frames.