A kind of micro filter and acoustic equipment

A technology of micro-filters and acoustic equipment, applied in the directions of dispersed particle filtration, loudspeakers, sensors, etc., can solve the problems of acoustic resistance, contradiction between strength and opening, low strength of ordinary metal films, etc. Sound resistance, the effect of improving the opening rate

Active Publication Date: 2021-01-22
WEIFANG GOERTEK MICROELECTRONICS CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] In addition, due to the low strength of ordinary metal films, there is a contradiction between strength and opening
For example, in order to increase the strength, the film layer needs to be made very thick, but when the hole is opened, the large hole depth will bring a large sound resistance, which is not conducive to the performance of the acoustic equipment

Method used

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  • A kind of micro filter and acoustic equipment
  • A kind of micro filter and acoustic equipment
  • A kind of micro filter and acoustic equipment

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Embodiment Construction

[0027] 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.

[0028] 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.

[0029] 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.

[0030] In all examples shown and discussed herein, any specific values ​​should be construed as exemplary only, and not as limitations. Therefore, other instances of the exemplary embodiment may have dif...

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Abstract

The invention discloses a micro-filter and an acoustic device, comprising a base with a back cavity, and a film layer arranged on the base and suspended on the back cavity; the film layer has arranged through holes, the The film layer adopts amorphous metal thin film. According to an embodiment of the present disclosure, the amorphous metal thin film is used as the membrane layer of the micro-filter, on the basis of ensuring the strength of the membrane layer, the opening ratio of the membrane layer can be increased, and the thickness of the membrane layer can be thinned. It makes the infiltration process easier and can form smaller through holes, avoiding the acoustic resistance caused by the large hole depth after the traditional thick film is opened.

Description

technical field [0001] The present invention relates to a micro-filter, which can be a micro-filter suitable for acoustic equipment to filter dust, particles or / and water and other substances that are not expected to enter the interior of the acoustic equipment. Background technique [0002] Portable computing devices such as laptops and tablets are ubiquitous, as are portable communication devices such as smart phones. However, these devices do not have enough room for relatively large microphones or speakers. Accordingly, microphones and speakers are becoming more and more compact in size and reduced in size. In addition, the microphones and speakers in these portable settings usually need to be close to the relevant acoustic input or output ports of the terminal, so that particles and water can easily enter the microphones and speakers, causing the failure of these acoustic devices. [0003] Filter membranes are sometimes deployed in older equipment to prevent certain t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R9/06B01D46/54H04R7/12H04R9/02
CPCH04R9/06H04R9/02B01D46/543H04R7/12H04R2400/11H04R2207/021H04R1/023H04R1/086
Inventor 林育菁
Owner WEIFANG GOERTEK MICROELECTRONICS CO LTD
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