Multi-channel transmission isolation frame and millimeter wave transmission packaging structure

Abstract

The utility model discloses a multichannel transmission isolation frame and a millimeter wave transmission packaging structure, the multichannel transmission isolation frame comprises a first base island, a second base island, an isolation wall and a plurality of wireless transmission channels arranged side by side, an isolation gap is arranged between the first base island and the second base island, the isolation wall is arranged between two adjacent wireless transmission channels, and the isolation gap is arranged between the first base island and the second base island. Each wireless transmission channel comprises a first mounting position arranged on the first base island and a second mounting position arranged on the second base island, and the first mounting position and the second mounting position are used for mounting millimeter wave antenna assemblies; at least part of the area of the separating wall and the first base island are of an integrated structure which is integrally machined and formed. The multi-channel transmission isolation frame is provided with the isolation walls, so that the phenomenon of mutual interference among a plurality of wireless transmission channels can be effectively improved, and the miniaturization of a millimeter wave transmission packaging structure can be ensured; the multi-channel transmission isolation frame is simple to process, low in manufacturing cost and high in reliability.

Description

Technical Field

[0001] The utility model relates to the technical field of chip packaging, in particular to a multi-channel transmission isolation frame and a millimeter wave transmission packaging structure. Background Art

[0002] Millimeter wave transmission has a propagation range. When applied to a multi-channel packaging structure, there will be a spacing requirement between two adjacent transmission channels. If the spacing requirement is not met, there will be a problem of transmission interference between adjacent transmission channels, causing each transmission channel to fail to work properly. If the spacing between adjacent transmission channels is increased, the volume of the packaging structure will increase, which cannot meet the needs of small-volume chip packaging. Therefore, a solution is urgently needed to solve the problem of multi-channel millimeter wave transmission interference in a small-volume package. Utility Model Content

[0003] The technical problem solved by the utility model is to provide a multi-channel transmission isolation frame and a small-volume millimeter wave transmission packaging structure having the multi-channel transmission isolation frame.

[0004] In order to solve the above technical problems, the first technical solution adopted by the utility model is: a multi-channel transmission isolation frame, including a first base island, a second base island, an isolation wall and a plurality of wireless transmission channels arranged side by side, an isolation gap is provided between the first base island and the second base island, the isolation wall is provided between two adjacent wireless transmission channels, each of the wireless transmission channels includes a first mounting position provided on the first base island and a second mounting position provided on the second base island, the first mounting position and the second mounting position are used to install a millimeter wave antenna assembly; at least a partial area of ​​the isolation wall is an integrated structure integrally processed and formed with the first base island.

[0005] In one embodiment, an avoidance groove is provided on the second base island, and an end of the isolation wall away from the first base island extends into the avoidance groove and does not contact the second base island.

[0006] In one embodiment, the isolation wall is formed on the first base island by etching or stamping.

[0007] In one embodiment, the isolation wall includes a first portion formed integrally with the first base island and a second portion formed integrally with the second base island, and an isolation gap is provided between the first portion and the second portion.

[0008] In one embodiment, the first portion is etched or stamped on the first base island; and / or the second portion is etched or stamped on the second base island.

[0009] In one embodiment, a top end of the isolation wall protrudes upward relative to a top surface of the first base island.

[0010] In one embodiment, the first base island has a first shielding cover integrally formed with the first base island, and the first shielding cover is arranged corresponding to the first installation position; and / or the second base island has a second shielding cover integrally formed with the second base island, and the second shielding cover is arranged corresponding to the second installation position.

[0011] In one embodiment, the first shielding cover is etched or stamped on the first base island; and / or the second shielding cover is etched or stamped on the second base island.

[0012] In order to solve the above technical problems, the second technical solution adopted by the utility model is: a millimeter wave transmission packaging structure, including a millimeter wave antenna module, a packaging colloid and the above-mentioned multi-channel transmission isolation frame, the millimeter wave antenna module includes a first millimeter wave antenna component and a second millimeter wave antenna component that match each other, the first millimeter wave antenna component is arranged at the first mounting position, the second millimeter wave antenna component is arranged at the second mounting position, and the packaging colloid covers the multi-channel transmission isolation frame and the millimeter wave antenna module.

[0013] In one embodiment, when the first millimeter wave antenna component is a transmitting antenna, the second millimeter wave antenna component is a receiving antenna; when the first millimeter wave antenna component is a receiving antenna, the second millimeter wave antenna component is a transmitting antenna; when the first millimeter wave antenna component is a first transceiver antenna, the second millimeter wave antenna component is a second transceiver antenna.

[0014] The beneficial effects of the utility model are:

[0015] The multi-channel transmission isolation frame has a novel structure and has its own isolation wall, which can effectively improve the mutual interference between multiple wireless transmission channels and is conducive to ensuring the miniaturization of the millimeter wave transmission packaging structure.

[0016] Compared with adding an additional isolation shielding structure outside the frame, the isolation wall in the multi-channel transmission isolation frame is integrally formed with the first base island, which can simplify the processing flow of the millimeter wave transmission packaging structure, reduce the manufacturing cost of the millimeter wave transmission packaging structure, and ensure the processing accuracy.

[0017] In addition, the isolation wall and the first base island are integrally processed and formed, which has a better shielding effect and no radiation escapes from the wireless transmission channel. Moreover, the isolation wall and the first base island are integrally processed and formed without adding any additional structure, which adapts to the traditional packaging process and has a better reliability compared to the situation where isolation and shielding measures are added outside the package. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0019] Figure 1 The structure of the multi-channel transmission isolation frame of the first embodiment of the utility model is shown in FIG. Figure 1 ;

[0020] Figure 2 The structure of the multi-channel transmission isolation frame of the first embodiment of the utility model is shown in FIG. Figure 2 ;

[0021] Figure 3 The structure of the multi-channel transmission isolation frame of the second embodiment of the utility model is shown in FIG. Figure 1 ;

[0022] Figure 4 The structure of the multi-channel transmission isolation frame of the second embodiment of the utility model is shown in FIG. Figure 2 .

[0023] Description of Figure Numbers:

[0024] 1. First base island; 11. First mounting position; 12. First shielding cover;

[0025] 2. Second base island; 21. Second mounting position; 22. Avoidance groove; 23. Second shielding cover;

[0026] 3. Separation wall;

[0027] 4. Wireless transmission channel;

[0028] 5. Isolation gap. DETAILED DESCRIPTION

[0029] The purpose, features and advantages of the present invention will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] It should be noted that if the embodiments of the present invention involve directional indications such as up, down, left, right, front, back, etc., then the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.

[0032] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0033] In addition, if the meaning of "and / or" appears in the full text is to include three parallel solutions, taking "and / or" as an example, it includes solutions, or solutions, or solutions that are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0034] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0035] Embodiment 1

[0036] Please refer to Figure 1 and Figure 2 , Embodiment 1 of the utility model is: a multi-channel transmission isolation framework, comprising a first base island 1, a second base island 2, an isolation wall 3 and a plurality of wireless transmission channels 4 arranged side by side, an isolation gap 5 is provided between the first base island 1 and the second base island 2, and the isolation wall 3 is provided between two adjacent wireless transmission channels 4, and each of the wireless transmission channels 4 comprises a first mounting position 11 provided on the first base island 1 and a second mounting position 21 provided on the second base island 2, and the first mounting position 11 and the second mounting position 21 are used to install a millimeter wave antenna assembly; at least a part of the isolation wall 3 is an integrated structure formed by integral processing with the first base island 1. It is not difficult to understand that the first base island 1 and the second base island 2 are both made of metal materials.

[0037] In this embodiment, the first mounting position 11 is a first mounting groove, which is connected to the bottom surface and the top surface of the first base island 1. The first mounting groove is connected to the bottom surface of the first base island 1 in order to reserve a feeding area and / or a radiation area for the millimeter wave antenna assembly. The second mounting position 21 is a second mounting groove, which is connected to the bottom surface and the top surface of the second base island 2.

[0038] In this embodiment, assuming that the length direction of the isolation gap 5 is the X-axis direction, the length direction of the isolation wall 3 is the Y-axis direction.

[0039] To improve the isolation effect of the isolation wall 3 , in this embodiment, the top of the isolation wall 3 protrudes upward relative to the top surface of the first base island 1 . In other words, the isolation wall 3 protrudes relative to the first base island 1 in the Z-axis direction.

[0040] In this embodiment, all areas of the isolation wall 3 are not in contact with the second base island 2. To further improve the isolation effect, an avoidance groove 22 is provided on the second base island 2. The end of the isolation wall 3 away from the first base island 1 extends into the avoidance groove 22 and does not contact the second base island 2. In detail, the distance from the end of the second mounting position 21 away from the first base island 1 to the first base island 1 is A, and the distance from the end of the isolation wall 3 away from the first base island 1 to the first base island 1 is B. Preferably, B is greater than or equal to A.

[0041] Optionally, the isolation wall 3 is formed on the first base island 1 by etching or stamping.

[0042] This embodiment also provides a millimeter wave transmission packaging structure, which includes a millimeter wave antenna module, a packaging colloid and the above-mentioned multi-channel transmission isolation frame, wherein the millimeter wave antenna module includes a first millimeter wave antenna component and a second millimeter wave antenna component that match each other, wherein the first millimeter wave antenna component is arranged at the first mounting position 11, and the second millimeter wave antenna component is arranged at the second mounting position 21, and the packaging colloid covers the multi-channel transmission isolation frame and the millimeter wave antenna module. It is easy to understand that in a specific product, the first base island 1 has a first pin exposed to the packaging colloid, and the second base island 2 has a second pin exposed to the packaging colloid.

[0043] It should be noted that when the type of the first millimeter wave antenna component is a transmitting antenna, the type of the second millimeter wave antenna component is a receiving antenna; when the type of the first millimeter wave antenna component is a receiving antenna, the type of the second millimeter wave antenna component is a transmitting antenna; when the type of the first millimeter wave antenna component is a first transceiver antenna, the type of the second millimeter wave antenna component is a second transceiver antenna. Furthermore, in different wireless transmission channels 4, the types of the first millimeter wave antenna components installed at different first installation positions 11 can be the same or different, and can be selected according to actual needs.

[0044] Embodiment 2

[0045] Please refer to Figure 3 and Figure 4 The second embodiment of the present invention is a further improvement on the first embodiment, and the difference from the first embodiment is that:

[0046] The first base island 1 has a first shielding cover 12 integrally formed with the first base island 1, and the first shielding cover 12 is arranged corresponding to the first installation position 11; and / or the second base island 2 has a second shielding cover 23 integrally formed with the second base island 2, and the second shielding cover 23 is arranged corresponding to the second installation position 21.

[0047] The provision of the first shielding cover 12 and / or the second shielding cover 23 can further enhance the isolation and shielding performance of the multi-channel transmission isolation frame and improve electromagnetic compatibility.

[0048] In this embodiment, the first shielding cover 12 is located above the first base island 1 , and the second shielding cover 23 is located above the second base island 2 .

[0049] Optionally, the first shielding cover 12 is formed by etching or stamping on the first base island 1 ; and / or the second shielding cover 23 is formed by etching or stamping on the second base island 2 .

[0050] Embodiment 3

[0051] Embodiment 3 of the present utility model is a parallel technical solution of embodiment 1, and is different from embodiment 1 in that: the isolation wall includes a first part integrally formed with the first base island and a second part integrally formed with the second base island, and an isolation gap is provided between the first part and the second part.

[0052] When the first part is parallel and close to the second part, the isolation gap is located between the side of the first part close to the second part and the side of the second part close to the first part; when the first part is aligned with the second part, the isolation gap is located between the end surface of the first part and the end surface of the second part.

[0053] Optionally, the first portion is etched or stamped on the first base island; and / or the second portion is etched or stamped on the second base island.

[0054] The above are only optional embodiments of the present invention, and do not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. Multi-channel transmission isolation framework, characterized by: It includes a first base island, a second base island, a separation wall and a plurality of wireless transmission channels arranged side by side, wherein an isolation gap is provided between the first base island and the second base island, the separation wall is provided between two adjacent wireless transmission channels, each of the wireless transmission channels includes a first mounting position provided on the first base island and a second mounting position provided on the second base island, the first mounting position and the second mounting position are used for installing a millimeter wave antenna assembly; at least a partial area of ​​the separation wall is an integrated structure integrally processed and formed with the first base island.

2. The multi-channel transmission isolation framework according to claim 1, characterized in that: The second base island is provided with an avoidance groove, and one end of the isolation wall away from the first base island extends into the avoidance groove and does not contact the second base island.

3. The multi-channel transmission isolation framework according to claim 2, characterized in that: The isolation wall is formed by etching or stamping on the first base island.

4. The multi-channel transmission isolation framework according to claim 1, characterized in that: The isolation wall includes a first portion formed integrally with the first base island and a second portion formed integrally with the second base island, and an isolation gap is provided between the first portion and the second portion.

5. The multi-channel transmission isolation framework according to claim 4, characterized in that: The first portion is etched or stamped on the first base island; and / or the second portion is etched or stamped on the second base island.

6. The multi-channel transmission isolation framework according to claim 1, characterized in that: The top end of the isolation wall protrudes upward relative to the top surface of the first base island.

7. The multi-channel transmission isolation framework according to claim 1, characterized in that: The first base island has a first shielding cover integrally formed with the first base island, and the first shielding cover is arranged corresponding to the first installation position; and / or the second base island has a second shielding cover integrally formed with the second base island, and the second shielding cover is arranged corresponding to the second installation position.

8. The multi-channel transmission isolation framework according to claim 7, characterized in that: The first shielding cover is formed by etching or stamping on the first base island; and / or the second shielding cover is formed by etching or stamping on the second base island.

9. A millimeter wave transmission packaging structure, characterized in that: It comprises a millimeter wave antenna module, a packaging colloid and the multi-channel transmission isolation frame as described in any one of claims 1 to 8, wherein the millimeter wave antenna module comprises a first millimeter wave antenna component and a second millimeter wave antenna component that match each other, the first millimeter wave antenna component is arranged at the first mounting position, the second millimeter wave antenna component is arranged at the second mounting position, and the packaging colloid covers the multi-channel transmission isolation frame and the millimeter wave antenna module.

10. The millimeter wave transmission packaging structure according to claim 9, characterized in that: When the first millimeter wave antenna component is a transmitting antenna, the second millimeter wave antenna component is a receiving antenna; when the first millimeter wave antenna component is a receiving antenna, the second millimeter wave antenna component is a transmitting antenna; when the first millimeter wave antenna component is a first transceiver antenna, the second millimeter wave antenna component is a second transceiver antenna.

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