CN220808265U - Novel window type clamp for MEMS microphone production - Google Patents

Abstract

The utility model relates to the field of electronics and provides a new window clamp for MEMS microphone production for covering electronic devices, said window clamp comprising: a frame portion including a pair of first frames opposing in a first direction and a pair of second frames opposing in a second direction, the first direction and the second direction being perpendicular; and a central portion formed with a plurality of windows for exposing components of the electronic device requiring an injection molding process, the central portion including: the two ends of any one of the first strip parts are respectively connected with the pair of first frames; and a plurality of parallel second strip parts, wherein two ends of any one second strip part are respectively connected with the pair of second frames. The window type clamp provided by the utility model can realize good covering effect on other parts of the electronic device and prevent the performance of the electronic device from being influenced by sputtered resin points in the injection molding process.

Description

Novel window type clamp for MEMS microphone production

Technical Field

The utility model relates to the technical field of electronics, in particular to a window type clamp.

Background

In the field of electronics, electronic devices often require an injection molding process during fabrication, including but not limited to various printed circuit boards (Printed Circuit Board, abbreviated as "pcbs"), such as pcbs for micro-electro-MECHANICAL SYSTEM (MEMS) microphones.

A plurality of MEMS microphones are arranged on the PCB, the MEMS microphones include MEMS sensors and Application SPECIFIC INTEGRATED circuits (abbreviated as "ASIC"), and Guard rings (abbreviated as "GR") are further provided on the periphery of the MEMS sensors and the ASIC.

In the conventional packaging operation, it is necessary to perform an injection molding process on the ASIC using, for example, epoxy resin or the like, and the inventors found that the situation in which the resin spot is sputtered on the GR region may occur during the injection molding process, and the performance of the GR may be affected.

It should be noted that the foregoing description of the background art is only for the purpose of providing a clear and complete description of the technical solution of the present application and is presented for the convenience of understanding by those skilled in the art. The above-described solutions are not considered to be known to the person skilled in the art simply because they are set forth in the background of the application section.

Disclosure of utility model

To solve at least one of the above problems or other similar problems, embodiments of the present utility model provide a window clamp.

According to an embodiment of the present utility model, there is provided a new window clamp for MEMS microphone production for covering an electronic device, the window clamp including:

a frame portion including a pair of first frames opposing in a first direction and a pair of second frames opposing in a second direction, the first direction and the second direction being perpendicular; and

A central part formed with a plurality of windows for exposing components of the electronic device requiring an injection molding process,

The central portion includes:

The two ends of any one of the first strip parts are respectively connected with the pair of first frames; and

And the two ends of any one of the second strip parts are respectively connected with the pair of second frames.

In addition, optionally, the thickness of the frame portion is greater than the thickness of the central portion.

In addition, optionally, the window jig is formed with a recess at the central portion on at least one face,

The window clamp further comprises a clamping block arranged in the concave portion, and the clamping block and the window clamp the electronic device under the condition that the electronic device is arranged in the concave portion.

In addition, optionally, the plurality of clamping blocks are arranged at the periphery of the central part and do not cover the window.

In addition, optionally, the window type clamp further includes an electronic device fixing portion that fixes the electronic device in a case where the electronic device is provided to the window type clamp.

In addition, optionally, the frame portion is provided with a window type clamp fixing portion.

In addition, optionally, the width of the first elongated portion and the width of the second elongated portion are different.

Further optionally, the electronic device is a printed circuit board provided with one or more mems microphones.

Additionally, optionally, the MEMS microphone includes a MEMS sensor, an application specific integrated circuit, and a guard ring surrounding the MEMS sensor and the application specific integrated circuit,

In the case where the mems microphone is disposed on the window-type jig, the first strip portion covers a pair of opposite sides of the mems sensor and the guard ring, which are opposite in the second direction, and the second strip portion covers a pair of opposite sides of the guard ring, which are opposite in the first direction.

One of the beneficial effects of the embodiment of the utility model is that: according to the window type clamp provided by the utility model, the parts of the electronic device, which need to be subjected to the injection molding process, are exposed from the window, so that a good covering effect of other parts of the electronic device can be realized, and the influence of sputtered resin points in the injection molding process on the performance of the electronic device is prevented.

Specific embodiments of the utility model are disclosed in detail below with reference to the following description and drawings, indicating the manner in which the principles of the utility model may be employed. It should be understood that the embodiments of the utility model are not limited in scope thereby. The embodiments of the utility model include many variations, modifications and equivalents within the scope of the terms of the appended claims.

Features that are described and/or illustrated with respect to one embodiment may be used in the same way or in a similar way in one or more other embodiments in combination with or instead of the features of the other embodiments.

It should be emphasized that the term "comprises/comprising" when used herein is taken to specify the presence of stated features, integers, steps or components but does not preclude the presence or addition of one or more other features, integers, steps or components.

Drawings

Elements and features described in one drawing or one implementation of an embodiment of the utility model may be combined with elements and features shown in one or more other drawings or implementations. Furthermore, in the drawings, like reference numerals designate corresponding parts throughout the several views, and may be used to designate corresponding parts as used in more than one embodiment.

The accompanying drawings, which are included to provide a further understanding of embodiments of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model. It is evident that the drawings in the following description are only some embodiments of the present utility model and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art. In the drawings:

FIG. 1 is a schematic view of a window clamp according to an embodiment of the present utility model;

FIG. 2 is an enlarged schematic view of a portion A of the window clamp of FIG. 1;

FIG. 3 is a schematic diagram of a printed circuit board with a MEMS microphone in accordance with an embodiment of the application;

FIG. 4 is another schematic view of a window clamp according to an embodiment of the application;

Fig. 5 is yet another schematic view of a window clamp according to an embodiment of the application.

Detailed Description

The foregoing and other features of the utility model will become apparent from the following description, taken in conjunction with the accompanying drawings. In the specification and drawings, there have been specifically disclosed specific embodiments of the utility model that are indicative of some of the ways in which the principles of the utility model may be employed, it being understood that the utility model is not limited to the specific embodiments described, but, on the contrary, the utility model includes all modifications, variations and equivalents falling within the scope of the appended claims. Various embodiments of the present utility model are described below with reference to the accompanying drawings. These embodiments are merely illustrative and not limiting of the utility model.

In the embodiments of the present utility model, the terms "first," "second," "upper," "lower," etc. are used to distinguish between different elements from each other by reference, but do not denote a spatial arrangement or a temporal order of the elements, which should not be limited by the terms. The term "and/or" includes any and all combinations of one or more of the associated listed terms. The terms "comprises," "comprising," "including," "having," and the like, are intended to reference the presence of stated features, elements, components, or groups of components, but do not preclude the presence or addition of one or more other features, elements, components, or groups of components.

In embodiments of the present utility model, the singular forms "a," an, "and" the "include plural referents and should be construed broadly to mean" one "or" one type "and not limited to" one "or" another; furthermore, the term "comprising" is to be interpreted as including both the singular and the plural, unless the context clearly dictates otherwise. Furthermore, the term "according to" should be understood as "based at least in part on … …", and the term "based on" should be understood as "based at least in part on … …", unless the context clearly indicates otherwise.

Embodiments of the present utility model provide a window clamp.

Fig. 1 is a schematic view of a window clamp according to an embodiment of the utility model. Fig. 2 is an enlarged schematic view of a portion a of the window clamp of fig. 1.

As shown in fig. 1, the window jig 10 includes a frame portion 11 and a central portion 12, the frame portion 11 including a pair of first frames 11a, 11c opposed in a first direction F1 and a pair of second frames 11b, 11d opposed in a second direction F2, the first direction F1 and the second direction F2 being perpendicular.

As shown in fig. 1 and 2, the central portion 12 is formed with a plurality of windows W, and the members c of the window W, which are required for the injection molding process, of the electronic device are exposed.

As shown in fig. 1 and 2, the central portion 12 includes a plurality of parallel first elongated portions 121 and a plurality of parallel second elongated portions 122, both ends of any one of the first elongated portions 121 are respectively connected to a pair of first frames 11a, 11c, and both ends of any one of the second elongated portions 122 are respectively connected to a pair of second frames 11b, 11d.

As is clear from the foregoing embodiments, according to the window-type clamp provided by the present utility model, the component c of the electronic device that needs to undergo the injection molding process is exposed from the window W, that is, other components of the electronic device are covered by the window-type clamp, thereby achieving a good covering effect for other components of the electronic device and preventing the resin points sputtered in the injection molding process from affecting the performance of the electronic device.

In the embodiment of the present application, the electronic device may be a printed circuit board provided with one or more mems microphones, but the present application is not limited thereto, and the electronic device may be other electronic devices including components requiring injection molding. A printed circuit board provided with a mems microphone will be described as an example.

FIG. 3 is a schematic diagram of a printed circuit board with a MEMS microphone in accordance with an embodiment of the application. It should be noted that a plurality of mems microphones may be arranged on the printed circuit board, and a mems microphone is illustrated here as an example.

As shown in fig. 3, a MEMS microphone is provided on the printed circuit board 24, and includes an ASIC21, a MEMS sensor 22, and a protection ring 23 surrounding the ASIC21 and the MEMS sensor 22, which are provided on the printed circuit board, wherein the ASIC21 is taken as an example of the component c requiring the injection molding process shown in fig. 2.

As shown in fig. 1-3, in one or more embodiments, with the MEMS microphone disposed on the window clamp 10, the first strip 121 may cover a pair of edges 231 of the MEMS sensor 22 and the guard ring 23 that are opposite in the second direction F2, the second strip 122 may cover a pair of edges 232 of the guard ring 23 that are opposite in the first direction F1, and the asic21 may be exposed from the window W.

Therefore, by arranging the first strip part and the second strip part which are perpendicular to each other, the ASIC of the micro-electromechanical system microphone, which needs to be subjected to the injection molding process, can be exposed, and the MEMS sensor 22 and the guard ring 23 can be effectively covered, so that resin points generated in the injection molding process can be prevented from being sputtered on the guard ring 23, the GR performance is prevented from being influenced, and the product quality is improved.

As shown in fig. 2, in one or more embodiments, the width d1 of the first elongated portion 121 and the width d2 of the second elongated portion 122 are different, e.g., d1 is greater than d2, whereby the first elongated portion 121 can effectively cover the MEMS sensor 22 and the opposite pair of edges 231 of the guard ring 23 shown in fig. 3 in the second direction F2. However, the present application is not limited thereto, and the width d1 of the first long portion 121 and the width d2 of the second long portion 122 may have other size relationships, and may be determined according to the size of the component to be covered, so long as the component to be covered of the electronic device can be covered.

In one or more embodiments, the thickness of the rim portion is greater than the thickness of the central portion, that is, the rim portion forms a recess in the central portion around the central portion, whereby the electronic device may be placed in the formed recess, facilitating the mutual positioning of the electronic device and the window clamp.

Fig. 4 is another schematic view of the window clamp of the embodiment of the application, showing the window clamp viewed from the other side opposite to fig. 1.

As shown in fig. 4, on the surface shown in fig. 4, the frame portion 11 includes a surface S1, the central portion 12 includes a surface S2, and the surface S2 is recessed inward of the surface S1 to form a recess.

Fig. 5 is yet another schematic view of a window clamp of an embodiment of the application, showing an exploded schematic view of the window clamp.

As shown in fig. 4 and 5, in one or more embodiments, the window clamp 10 further includes a clamp block 13, the clamp block 13 may be disposed in the recess, and the clamp block 13 and the window clamp may clamp the electronic device in a case where the electronic device is disposed in the recess, that is, the electronic device may be clamped by the clamp block 13 and the central portion 12 of the window clamp. Thus, the electronic device can be reliably fixed to the window jig.

In the embodiment of the present application, since the PCB board is thin, in the case of setting the PCB board in the concave portion of the center of the window type jig, the PCB board may still be lower than the face S2 of the frame portion 11, in which case, when the ASIC is injection molded from the other side shown in fig. 1, deformation or displacement of the PCB board may be caused, resulting in a reduction in operation accuracy, whereas by setting the clip 13, the PCB board may be reliably supported, for example, in the case of setting the clip 13, the clip 13 may be flush or protrude with the face S2 of the frame portion 11, so that deformation or displacement of the PCB board may be prevented, and the operation accuracy may be improved.

In one or more embodiments, as shown in fig. 4 and 5, the number of clamping blocks 13 is plural, and the plurality of clamping blocks 13 are disposed at the periphery of the central portion 12 and do not cover the window. Thus, a good supporting effect for the electronic device can be achieved while avoiding interference with the injection molding process.

However, the present application is not limited thereto, and for example, the clamping block 13 may include a clamping block 13a disposed parallel to the first direction F1 and disposed at the center of the central portion 12, whereby good support for the electronic device can be further achieved, but the present application is not limited thereto, and the disposition positions and the number of the clamping blocks 13 may be other embodiments, and the present application is not limited thereto.

In the embodiment of the present application, the concave portion may be formed on one surface as shown in fig. 4, but the present application is not limited thereto, and the central portion may be recessed with respect to the frame portion to form the concave portion on the surface on which the injection molding process is performed as shown in fig. 1, thereby preventing the resin dots from being sputtered off during the injection molding process.

As shown in fig. 4 and 5, in one or more embodiments, the window clamp 10 further includes an electronic device securing portion 14, the electronic device securing portion 14 securing an electronic device with the electronic device disposed on the window clamp 10. Thus, the electronic device can be fixed to the window jig, and the work accuracy can be ensured.

For example, the electronic device fixing portion 14 may be a screw for fixing the electronic device by observing the electronic device and the through hole of the window jig 10, for example, the central portion 12, but the present application is not limited thereto, and the electronic device fixing portion may be another structure, that is, the fixation of the electronic device to the window jig may be achieved by another method, and the present application is not limited thereto.

As shown in fig. 4 and 5, in one or more embodiments, the frame portion 11 is provided with a window type jig fixing portion 111. Thereby, the window jig 10 can be fixed to an external member such as a console. The embodiment of the present application is not limited to the structure of the window jig fixing portion 111.

It should be noted that fig. 1 to 5 above only schematically illustrate the window type clamp according to the embodiment of the present application, but the present application is not limited thereto, and specific contents of the respective structures or components may also refer to the related art; it is also possible to add structures or components not shown in fig. 1 to 5 or to reduce one or more structures or components in fig. 1 to 5. Reference may be made to the related art for parts or elements not specifically indicated in fig. 1 to 5, and the present application is not limited thereto.

According to the window-type clamp provided by the utility model, the part c of the electronic device, which is required to be subjected to the injection molding process, is exposed from the window W, that is, other parts of the electronic device are covered by the window-type clamp, so that a good covering effect of other parts of the electronic device can be realized, and the influence of sputtered resin points in the injection molding process on the performance of the electronic device is prevented.

While the application has been described in connection with specific embodiments, it will be apparent to those skilled in the art that the description is intended to be illustrative and not limiting in scope. Various modifications and alterations of this application will occur to those skilled in the art in light of the spirit and principles of this application, and such modifications and alterations are also within the scope of this application.

Claims (9)

1. A new window clamp for MEMS microphone production for covering an electronic device, the window clamp comprising:

a frame portion including a pair of first frames opposing in a first direction and a pair of second frames opposing in a second direction, the first direction and the second direction being perpendicular; and

A central part formed with a plurality of windows for exposing components of the electronic device requiring an injection molding process,

The central portion includes:

The two ends of any one of the first strip parts are respectively connected with the pair of first frames; and

And the two ends of any one of the second strip parts are respectively connected with the pair of second frames.

2. The window clamp of claim 1, wherein,

The thickness of the frame part is greater than that of the central part.

3. The window clamp of claim 2, wherein,

The window jig is formed with a recess at the central portion on at least one face,

The window clamp further comprises a clamping block arranged in the concave portion, and the clamping block and the window clamp the electronic device under the condition that the electronic device is arranged in the concave portion.

4. The window clamp of claim 3, wherein,

The clamping blocks are arranged on the periphery of the central part and do not cover the window.

5. The window clamp of claim 1, wherein,

The window type clamp further comprises an electronic device fixing part, and the electronic device fixing part is used for fixing the electronic device under the condition that the electronic device is arranged on the window type clamp.

6. The window clamp of claim 1, wherein,

The frame part is provided with a window type clamp fixing part.

7. The window clamp of claim 1, wherein,

The width of the first strip portion is different from the width of the second strip portion.

8. The window clamp according to any one of claims 1 to 7, wherein,

The electronic device is a printed circuit board provided with one or more mems microphones.

9. The window clamp of claim 8, wherein,

The mems microphone includes a mems sensor, an asic, and a guard ring surrounding the mems sensor and asic,

In the case where the mems microphone is disposed on the window-type clamp, the first strip covers a pair of opposite sides of the mems sensor and the guard ring in the second direction, the second strip covers a pair of opposite sides of the guard ring in the first direction, and the asic is exposed from the window.