CN216925891U - Waterproof barometer - Google Patents
Waterproof barometer Download PDFInfo
- Publication number
- CN216925891U CN216925891U CN202122923549.6U CN202122923549U CN216925891U CN 216925891 U CN216925891 U CN 216925891U CN 202122923549 U CN202122923549 U CN 202122923549U CN 216925891 U CN216925891 U CN 216925891U
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- Prior art keywords
- waterproof
- substrate
- barometer
- chip
- shell
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- 239000000758 substrate Substances 0.000 claims abstract description 40
- 238000004806 packaging method and process Methods 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000000853 adhesive Substances 0.000 claims description 15
- 230000001070 adhesive effect Effects 0.000 claims description 15
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical group [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 8
- 229920006335 epoxy glue Polymers 0.000 claims description 8
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 8
- 229910052709 silver Inorganic materials 0.000 claims description 8
- 239000004332 silver Substances 0.000 claims description 8
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 7
- 239000000919 ceramic Substances 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 2
- -1 wherein Substances 0.000 claims 2
- 239000003292 glue Substances 0.000 abstract description 12
- 230000006378 damage Effects 0.000 abstract description 3
- 239000000047 product Substances 0.000 description 11
- 230000002950 deficient Effects 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004078 waterproofing Methods 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
Images
Abstract
The utility model provides a waterproof barometer which comprises a packaging structure formed by a shell and a substrate, wherein an MEMS (micro electro mechanical System) chip and an ASIC (application specific Integrated Circuit) chip are arranged in the packaging structure and are electrically connected with the substrate, and a waterproof assembly is arranged on the shell and is used for preventing outside water from entering the packaging structure. The utility model can solve the problems that the glue surface is easy to damage and foreign matters on the chip disappear because the waterproof glue is directly exposed in the air in the traditional waterproof barometer.
Description
Technical Field
The utility model relates to the technical field of barometers, in particular to a waterproof barometer.
Background
With the rise of wearable products such as watches and bracelets, barometers have become their indispensable standard and match devices for measuring the pressure difference of the product position. Due to the diversity and complexity of the environments in which end products having barometers are used, water or water vapor may enter the barometer in many environments, thereby affecting the performance of the barometer.
At present, waterproof barometer generally adopts the waterproof glue to carry on waterproofly, but this kind of traditional waterproof barometer, waterproof glue can directly expose and cause the face of gluing damaged and foreign matter easily in the air, when detecting whether waterproof barometer is the yields, waterproof glue dissolves the back, the foreign matter on the MEMS chip also can be adsorbed away by waterproof glue to lose from the chip, whether this waterproof barometer of accurate measurement is the yields, thereby lead to detecting the defective products difficulty.
In order to solve the above problems, the present invention provides a novel waterproof barometer.
SUMMERY OF THE UTILITY MODEL
In view of the above problems, an object of the present invention is to provide a waterproof barometer, so as to solve the problems of the conventional waterproof barometer that the waterproof glue is directly exposed to the air, which easily causes the glue surface to be damaged, and the waterproof glue absorbs foreign matters on the chip, thereby making it difficult to detect the product.
The utility model provides a waterproof barometer, which comprises a packaging structure formed by a shell and a substrate, wherein an MEMS chip and an ASIC chip are arranged in the packaging structure, the MEMS chip and the ASIC chip are electrically connected with the substrate, wherein,
the shell is provided with a waterproof assembly, and the waterproof assembly is used for preventing outside water from entering the interior of the packaging structure.
Further, it is preferable that the waterproof assembly includes a protection part at a middle portion and a support part at an edge portion, the protection part including two protection plates and a waterproof breathable film between the two protection plates, wherein,
air holes are uniformly formed in each layer of protection plate, and the two layers of protection plates are used for protecting the waterproof breathable film.
Further, it is preferable that the waterproof assembly is fixed to the housing through the support portion; wherein the content of the first and second substances,
and a groove is arranged at one end of the shell, which is not fixed with the substrate, and is used for fixing the supporting part.
Further, it is preferable that the supporting portion is adhesively fixed to the groove by an adhesive, wherein,
the adhesive is silver paste, tin paste or epoxy glue.
Further, it is preferable that the housing is adhesively fixed to the substrate by an adhesive, wherein,
the adhesive is silver paste, tin paste or epoxy glue.
Further, it is preferable that the MEMS chip is provided on the ASIC chip, the ASIC chip is provided on the substrate, and,
the MEMS chip is electrically connected with the ASIC chip through a gold wire, and the ASIC chip is electrically connected with the substrate through a gold wire.
In addition, the substrate is preferably a ceramic substrate.
In addition, it is preferable that a pad is further provided on the substrate, and the substrate is electrically connected to an external device through the pad.
According to the waterproof barometer, the waterproof assembly is arranged on the shell and used for preventing outside water from entering the packaging structure. The waterproof component is adopted for waterproofing, so that the waterproof component can be directly removed when defective products are analyzed, and an MEMS chip and an ASIC chip in the packaging structure cannot be damaged; the waterproof assembly can reduce damage to the product in the manufacturing process of the product, and can be recycled, so that the cost consumption is reduced.
Drawings
Other objects and results of the present invention will become more apparent and more readily appreciated by reference to the following description taken in conjunction with the accompanying drawings, and as the utility model is more fully understood. In the drawings:
fig. 1 is a schematic structural view of a waterproof barometer according to an embodiment of the utility model.
Wherein the reference numerals include: 1. the module comprises a shell, 11, a groove, 2, a substrate, 3, an MEMS chip, 4, an ASIC chip, 5, a first gold wire, 6, a second gold wire, 7, a waterproof component, 71, a first protection plate, 711, a vent hole, 72, a waterproof breathable film, 73, a second protection plate, 731, a vent hole, 74 and a supporting part.
The same reference numbers in all figures indicate similar or corresponding features or functions.
Detailed Description
Aiming at solving the problems that the waterproof glue of the traditional waterproof barometer is directly exposed in the air, so that the glue surface is easily damaged and foreign matters on a chip disappear, the utility model provides the waterproof barometer.
Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
To illustrate the structure of the waterproof barometer provided by the utility model, fig. 1 shows the structure of the waterproof barometer according to an embodiment of the utility model.
As shown in fig. 1, the waterproof barometer provided by the utility model comprises a package structure formed by a housing 1 and a substrate 2, wherein a MEMS chip 3 and an ASIC chip 4 are arranged inside the package structure, the MEMS chip 3 and the ASIC chip 4 are electrically connected to the substrate 2, wherein a waterproof component 7 is arranged on the housing 1, and the waterproof component 7 is used for preventing external water from entering the package structure.
In the embodiment of the present invention, the waterproof assembly 7 includes a protection portion at a middle portion and a support portion 74 at an edge portion, the protection portion includes two layers of protection plates and a waterproof breathable film 72 between the two layers of protection plates, wherein vent holes are uniformly provided on each layer of protection plate, and the two layers of protection plates are used for protecting the waterproof breathable film 72.
In the embodiment shown in fig. 1, the protecting part comprises a first protecting plate 71, a second protecting plate 73, and a waterproof and breathable film 72 positioned between the first protecting plate 71 and the second protecting plate 73, wherein vent holes 711 are uniformly arranged on the first protecting plate 71, and the first protecting plate 71 is in contact with the outside and is used for ventilating and protecting the waterproof and breathable film 72; a plurality of vent holes 731 are uniformly provided on the second protection plate 73, and the second protection plate 73 faces the chip inside the package, which functions to air-pressure-permeate and protect the waterproof breathable film 72, and the thickness of the first protection plate 71 is greater than that of the second protection plate 73.
In the embodiment of the present invention, the waterproof assembly 7 is fixed to the housing 1 by the support portion 74; wherein, a groove 11 is provided at one end of the housing 1 not fixed with the substrate 2, and the groove 11 is used for fixing the supporting portion 74. The supporting portion 74 is bonded and fixed with the groove 11 through an adhesive, wherein the adhesive is silver paste, tin paste or epoxy glue.
In the embodiment of the utility model, the waterproof component 7 is adopted, so that not only can external water be prevented from entering the packaging structure, but also the waterproof component can be directly detached from the shell 1 when whether the waterproof barometer is good or not is detected, the MEMS chip 3, the ASIC chip 4 and the substrate 2 in the packaging structure cannot be damaged, and if foreign matters exist on the chips, the foreign matters cannot disappear along with the waterproof component 7, so that whether the product belongs to good or not can be accurately detected.
In addition, in the embodiment of the present invention, the housing 11 is fixed to the substrate 2 by an adhesive, wherein the adhesive is silver paste, solder paste, or epoxy glue. Preferably, the adhesive is silver paste, and tin paste or epoxy glue may also be selected, and in practical application, any one of the silver paste, the tin paste or the epoxy glue is selected according to needs to bond and fix the housing 1 and the substrate 2 together.
In the embodiment of the present invention, the MEMS chip 3 is disposed on the ASIC chip 4, the ASIC chip 4 is disposed on the substrate 2, and the MEMS chip 3 is fixed to the ASIC chip 4 by an adhesive, and the ASIC chip 4 is fixed to the substrate 2 by an adhesive. In practical applications, the MEMS chip may be disposed on the ASIC chip or disposed on the substrate, as needed.
The MEMS chip 3 is electrically connected with the ASIC chip 4 through a first gold wire 5, and the ASIC chip 4 is connected with the substrate 2 through a second gold wire 6.
In the embodiment of the present invention, the substrate 2 may be a ceramic substrate or a PCB substrate, and preferably, the substrate 2 is a ceramic substrate having the characteristics of water resistance and corrosion resistance. A pad is also provided on the substrate 2, and the substrate is electrically connected to an external device through the pad.
According to the waterproof barometer provided by the utility model, the waterproof assembly is arranged on the shell and is used for preventing outside water from entering the interior of the packaging structure. The waterproof component is adopted for waterproofing, so that the waterproof component can be directly removed when defective products are analyzed, and an MEMS chip and an ASIC chip in the packaging structure cannot be damaged; adopt waterproof assembly can reduce the destruction to the product in the product manufacture process to this waterproof assembly can be retrieved, reduces the cost consumption, thereby solves traditional waterproof barometer and leads to the fact the face of gluing damaged and the chip on the problem that the foreign matter disappears because waterproof glue can directly expose in the air easily.
The waterproof barometer proposed according to the utility model is described above by way of example with reference to the accompanying drawings. However, it will be appreciated by those skilled in the art that various modifications may be made to the waterproof barometer proposed by the utility model described above without departing from the scope of the utility model. Accordingly, the scope of the utility model should be determined from the content of the appended claims.
Claims (8)
1. A waterproof barometer comprises a packaging structure formed by a shell and a substrate, wherein an MEMS chip and an ASIC chip are arranged inside the packaging structure and are electrically connected with the substrate,
the shell is provided with a waterproof assembly, and the waterproof assembly is used for preventing outside water from entering the interior of the packaging structure.
2. The waterproof barometer of claim 1,
the waterproof assembly comprises a protection part positioned in the middle part and a supporting part positioned in the edge part, the protection part comprises two layers of protection plates and a waterproof breathable film positioned between the two layers of protection plates, wherein,
air holes are uniformly formed in each layer of protection plate, and the two layers of protection plates are used for protecting the waterproof breathable film.
3. The waterproof barometer of claim 2,
the waterproof assembly is fixed with the shell through the supporting part; wherein the content of the first and second substances,
and a groove is arranged at one end of the shell, which is not fixed with the substrate, and the groove is used for fixing the supporting part.
4. The waterproof barometer of claim 3,
the supporting part is bonded and fixed with the groove through an adhesive, wherein,
the adhesive is silver paste, tin paste or epoxy glue.
5. The waterproof barometer of claim 1,
the shell is bonded and fixed with the substrate through an adhesive, wherein,
the adhesive is silver paste, tin paste or epoxy glue.
6. The waterproof barometer of claim 1,
the MEMS chip is disposed on the ASIC chip, the ASIC chip is disposed on the substrate, and,
the MEMS chip is electrically connected with the ASIC chip through a gold wire, and the ASIC chip is electrically connected with the substrate through a gold wire.
7. The waterproof barometer of claim 1,
the substrate is a ceramic substrate.
8. The waterproof barometer of claim 1,
and a bonding pad is also arranged on the substrate, and the substrate is electrically connected with an external device through the bonding pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122923549.6U CN216925891U (en) | 2021-11-25 | 2021-11-25 | Waterproof barometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122923549.6U CN216925891U (en) | 2021-11-25 | 2021-11-25 | Waterproof barometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216925891U true CN216925891U (en) | 2022-07-08 |
Family
ID=82250758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122923549.6U Active CN216925891U (en) | 2021-11-25 | 2021-11-25 | Waterproof barometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216925891U (en) |
-
2021
- 2021-11-25 CN CN202122923549.6U patent/CN216925891U/en active Active
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