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A microphone and electronic device

A technology of microphone and membrane body, which is applied in the direction of electrical components, sensor parts, microphone mouth/microphone accessories, etc., which can solve the problems of weak anti-pressure ability, inability to protect MEMS microphone unit, and deviation of frequency response of micro-electromechanical microphone device and other issues to achieve the effect of reducing the impact

Active Publication Date: 2020-08-25
WEIFANG GOERTEK MICROELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, as the thickness of the filter increases, the frequency response of the MEMS microphone device may deviate from
In addition, the existing filters are relatively weak against pressure. For example, once they are impacted by large wind pressure or water pressure, they are very easy to break or damage, and cannot effectively protect the MEMS microphone unit.

Method used

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  • A microphone and electronic device
  • A microphone and electronic device
  • A microphone and electronic device

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Embodiment Construction

[0028] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

[0029] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses.

[0030] Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the description.

[0031] In all examples shown and discussed herein, any specific values ​​should be construed as illustrative only, and not as limiting. Therefore, other instances of the exemplary embodiment may have dif...

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Abstract

Disclosed are a microphone and an electronic device. The microphone comprises a shell having an inner cavity, and a microphone unit provided in the inner cavity of the shell; the shell is provided with a sound hole for use in the microphone unit; the microphone further comprises a protection means used for sealing a channel between the sound hole and the microphone unit; the protection means comprises an acoustically sealed membrane body, and a rigid back plate that is spaced apart from the membrane body; the back plate is located at one side of the membrane body close to the microphone unit; the back plate is provided with a via hole; the acoustic compliance of the membrane body is greater than that of a diaphragm in the microphone unit.

Description

technical field [0001] The present invention relates to the field of electroacoustic technology, and more specifically, to a microphone and electronic equipment. Background technique [0002] MEMS (Micro-Electro-Mechanical Systems) is a class of miniaturized mechanical and electro-mechanical components that in their most general form can be defined as being made using microfabrication. The MEMS microphone unit can first be fabricated and then packaged in a micro-electromechanical microphone device on a substrate. MEMS microphone devices can also be assembled into electronic devices such as mobile phones, tablet computers, laptops, VR, etc., and are widely used. [0003] Due to the relatively small size of the MEMS microphone unit, the manufacturing environment will affect the performance of the electronic device with the MEMS microphone device. In the MEMS microphone unit, the diaphragm and the back plate are very important components. The diaphragm and the back plate toge...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R1/08H04R31/00
CPCH04R1/083H04R31/003H04R2201/003
Inventor 邹泉波
Owner WEIFANG GOERTEK MICROELECTRONICS CO LTD
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