CN220586253U - Quartz crystal vibrator capable of reducing heat conduction capacity - Google Patents
Quartz crystal vibrator capable of reducing heat conduction capacity Download PDFInfo
- Publication number
- CN220586253U CN220586253U CN202322195667.9U CN202322195667U CN220586253U CN 220586253 U CN220586253 U CN 220586253U CN 202322195667 U CN202322195667 U CN 202322195667U CN 220586253 U CN220586253 U CN 220586253U
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- quartz crystal
- section
- main vibration
- vibration area
- electrode
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- 239000010453 quartz Substances 0.000 title claims abstract description 82
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 82
- 239000013078 crystal Substances 0.000 title claims abstract description 81
- 229910052751 metal Inorganic materials 0.000 claims abstract description 20
- 239000002184 metal Substances 0.000 claims abstract description 20
- 230000007704 transition Effects 0.000 claims abstract description 15
- 238000012546 transfer Methods 0.000 claims description 8
- IHQKEDIOMGYHEB-UHFFFAOYSA-M sodium dimethylarsinate Chemical class [Na+].C[As](C)([O-])=O IHQKEDIOMGYHEB-UHFFFAOYSA-M 0.000 claims 1
- 239000000047 product Substances 0.000 description 5
- 239000013589 supplement Substances 0.000 description 5
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 3
- 229910052709 silver Inorganic materials 0.000 description 3
- 239000004332 silver Substances 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Landscapes
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Abstract
The utility model relates to a quartz crystal vibrator capable of reducing heat conduction capacity, which comprises a quartz crystal and a metal film, wherein the metal film is arranged on the upper surface and the lower surface of the quartz crystal, the metal film comprises an electrode surface and electrode feet, the electrode surface comprises a main vibration area and a non-main vibration area, the main vibration area is arranged in the middle of the quartz crystal, the non-main vibration area comprises a strip section, a transition section and a short strip section, the electrode feet are arranged at two corners where the wide side of the quartz crystal is positioned, one electrode foot is connected with the strip section, the strip section is arranged in parallel along the length direction of the quartz crystal, the length of the strip section is larger than that of the main vibration area, the free end of the strip section is provided with the vertically arranged transition section, and one end of the transition section is provided with the short strip section connected with the main vibration area. The utility model can reduce the heat conduction capacity of the quartz crystal vibrator, reduce the frequency jump amplitude of the quartz crystal vibrator caused by the change of the ambient temperature and improve the frequency stability of the product.
Description
Technical Field
The utility model relates to the technical field of quartz crystal frequency components, in particular to a quartz crystal vibrator capable of reducing heat conduction capacity.
Background
The higher the frequency of the quartz crystal vibrator is, the thinner the chip is, the heat conduction capability can be increased, the more the frequency of the quartz crystal vibrator is changed with the temperature, the more the environment temperature is changed, the frequency jump amplitude of the quartz crystal vibrator is increased, and the heat conduction capability of the quartz crystal vibrator can be reduced through the design of a metal film in order to improve the frequency stability of the quartz crystal vibrator under the rapid temperature change, thereby improving the characteristics of the quartz crystal vibrator product; the non-vibrating area of the conventional metal film between the main vibrating area and the electrode pins is straight, thick and short, and has a simple structure and good heat conduction capability.
Disclosure of Invention
The utility model aims to provide the quartz crystal vibrator with reduced heat conduction capability, which can reduce the heat conduction capability of the quartz crystal vibrator and improve the frequency stability of products.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a reduce quartz crystal vibrator of heat transfer ability, quartz crystal vibrator include quartz crystal and metal film, quartz crystal upper surface and lower surface all be provided with the metal film, the metal film include electrode face and electrode foot, the electrode face overlap the part that forms at the upper surface or the lower surface of quartz crystal and be the main vibrating area, the electrode face be the non-main vibrating area of the part that does not form overlapping at the upper surface or the lower surface of quartz crystal, the main vibrating area set up at the quartz crystal middle part, the non-main vibrating area include rectangular section, changeover portion and shortbar section, both corners department that quartz crystal broadside was located all be equipped with the electrode foot, be connected with rectangular section on one of them electrode foot, rectangular section along quartz crystal length direction parallel arrangement, the length of this rectangular section is greater than the length of main vibrating area, the free end of rectangular section be equipped with the changeover portion of vertical arrangement, the changeover portion one end be provided with the shortbar section that links to each other of main vibrating area, this shortbar section and rectangular parallel arrangement.
As a supplement to the technical scheme of the utility model, the electrode feet are rectangular in shape.
As a supplement to the technical scheme of the utility model, the shape of the main vibration area is rectangular.
As a supplement to the technical scheme of the utility model, the non-main vibration area of the upper surface of the quartz crystal and the non-main vibration area of the lower surface of the quartz crystal are symmetrically arranged.
As a supplement to the technical scheme of the utility model, the widths of the long strip section, the transition section and the short strip section are in the range of 10-70 mu m.
As a supplement to the technical proposal of the utility model, the distance between the long strip section and the short strip section is more than 50 μm.
The beneficial effects are that: the utility model relates to a quartz crystal vibrator capable of reducing heat conduction capacity, which reduces the heat conduction capacity of the quartz crystal vibrator by designing a non-main vibration area into a folded line shape, and compared with the original thick and short non-vibration area, the heat conduction capacity of the slender folded line type non-main vibration area can be greatly reduced. In the environment with severe temperature change, the frequency hopping amplitude of the quartz crystal vibrator is greatly reduced, so that the frequency stability of the product is improved. The utility model is especially suitable for the design of the high-frequency basic wave small-sized quartz vibrator.
Drawings
FIG. 1 is a top view of a quartz crystal vibrator according to the present utility model;
FIG. 2 is an exploded view of the electrode surface of the quartz crystal vibrator according to the present utility model;
FIG. 3 is a cross-sectional view of a quartz crystal vibrator according to the present utility model;
FIG. 4 is a top view of an application case of the present utility model;
fig. 5 is a cross-sectional view of an application case of the present utility model.
The diagram is: 1. quartz crystal, 2, metal film, 3, main vibrating area, 4, electrode foot, 5, encapsulation upper cover, 6, encapsulation base, 7, base inner electrode, 8, conductive silver colloid, 9, base outer electrode, 10, quartz crystal vibrator, 11, rectangular section, 12, transition section, 13, short section, 21, dielectric layer, 22, metal outer layer.
Detailed Description
The utility model will be further illustrated with reference to specific examples. It is to be understood that these examples are illustrative of the present utility model and are not intended to limit the scope of the present utility model. Further, it is understood that various changes and modifications may be made by those skilled in the art after reading the teachings of the present utility model, and such equivalents are intended to fall within the scope of the claims appended hereto.
The embodiment of the utility model relates to a quartz crystal vibrator capable of reducing heat conduction capacity, as shown in fig. 1-5, as shown in fig. 1 and 2, the quartz crystal vibrator 10 comprises a quartz crystal 1 and a metal film 2, the upper surface and the lower surface of the quartz crystal 1 are both provided with the metal film 2, the metal film 2 comprises an electrode surface and an electrode foot 4, the overlapped part formed by the electrode surface on the upper surface or the lower surface of the quartz crystal 1 is a main vibration area 3, the part, which is not overlapped, of the electrode surface on the upper surface or the lower surface of the quartz crystal 1 is a non-main vibration area, the main vibration area 3 is arranged in the middle of the quartz crystal 1, the non-main vibration area comprises a strip 11, a transition section 12 and a short strip 13, the two corners where the wide side of the quartz crystal 1 is positioned are respectively provided with the electrode foot 4, one electrode foot 4 is connected with the strip 11, the strip 11 is arranged in parallel to the length direction of the quartz crystal 1, the length of the strip 11 is longer than the length of the main vibration area 3, the non-main vibration area is arranged at one end of the strip 11, which is connected with the short strip 13, and the transition section 12 is arranged in parallel to the main vibration area 13.
The non-main vibration area is designed into a fold line type, and is composed of the long strip section 11, the transition section 12 and the short strip section 13, so that a heat energy transmission path is increased, and the long strip section 11, the transition section 12 and the short strip section 13 are all slender, so that the designed non-main vibration area can effectively reduce the heat conduction capacity of the quartz crystal vibrator 10, reduce the frequency jump amplitude of the quartz crystal vibrator 10 caused by temperature change, and improve the frequency stability of products. The heat transfer capability of the elongated folded non-primary vibrating region is greatly reduced compared to the original thick and short non-vibrating region. In an environment with severe temperature variation, the frequency hopping amplitude of the quartz crystal vibrator 10 is greatly reduced, so that the frequency stability of the product is improved.
The electrode pin 4 is rectangular in shape; the main vibration area 3 is rectangular in shape.
The frequency of the quartz crystal vibrator 10 is 80-100MHz basic wave.
As shown in fig. 3, the metal film 2 has two metal outer layers 22 and a dielectric layer 21, the metal outer layers 22 are Au films or Ag films, the dielectric layer 21 is disposed between the metal outer layers 22 and the quartz crystal 1, and the dielectric layer 21 is a Cr film.
The non-main vibration area on the upper surface of the quartz crystal 1 and the non-main vibration area on the lower surface of the quartz crystal 1 are symmetrically arranged.
The line widths of the long strip section 11, the transition section 12 and the short strip section 13 are between 10 and 70 mu m, and the narrower the width is, the stronger the heat conduction weakening capability is; the length of the fold line is properly fine-tuned according to the allowance of the non-main vibration area, and in order to avoid the influence on the heat conduction effect due to the communication of the coating and corona expansion of the long strip section 11 and the short strip section 13, the interval between the long strip section 11 and the short strip section 13 (namely the length of the transition section 12) is recommended to be set to be more than 50 mu m; depending on the wafer size, it is generally recommended that the main vibration region boundary be spaced above 150 μm from the wafer periphery boundary.
The quartz crystal vibrator 10 of the present utility model is mainly applied to quartz crystal frequency components such as quartz crystal resonators, quartz crystal resonators having thermistors, quartz crystal oscillators, quartz crystal temperature compensated oscillators, and the like.
As shown in fig. 4 and 5, the upper end of the package base 6 is sealed by the package upper cover 5, the inner cavity of the package base 6 is provided with a base inner electrode 7, the bottom of the package base 6 is provided with a base outer electrode 9, the quartz crystal vibrator 10 is adhered to the base inner electrode 7 of the package base 6 through the conductive silver adhesive 8, the conductive silver adhesive 7 is baked and solidified to support and fix the quartz crystal vibrator 10, and the circuit connecting the base inner electrode 7 and the base outer electrode 9 is arranged in the package base 6 to form electric conduction.
In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present utility model; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present utility model.
The foregoing has outlined a detailed description of a quartz crystal vibrator for reducing heat transfer capability, wherein specific embodiments are provided to illustrate the principles and embodiments of the present application, and wherein the above examples are provided to assist in understanding the method and core concepts of the present application; meanwhile, as those skilled in the art will have modifications in the specific embodiments and application scope in accordance with the ideas of the present application, the present description should not be construed as limiting the present application in view of the above.
Claims (6)
1. The utility model provides a reduce quartz crystal vibrator of heat conduction ability, quartz crystal vibrator (10) include quartz crystal (1) and metal film (2), quartz crystal (1) upper surface and lower surface all be provided with metal film (2), metal film (2) include electrode face and electrode foot (4), the electrode face overlap portion that forms at upper surface or lower surface of quartz crystal (1) be main vibrating area (3), the electrode face do not form the part of overlapping at upper surface or lower surface of quartz crystal (1) and be non-main vibrating area, its characterized in that: the quartz crystal vibration device is characterized in that the main vibration area (3) is arranged in the middle of the quartz crystal (1), the non-main vibration area comprises a long section (11), a transition section (12) and a short section (13), electrode feet (4) are arranged at two corners where the broadsides of the quartz crystal (1) are located, one electrode foot (4) is connected with the long section (11), the long section (11) is arranged in parallel along the length direction of the quartz crystal (1), the length of the long section (11) is larger than that of the main vibration area (3), the free end of the long section (11) is provided with the transition section (12) which is vertically arranged, one end of the transition section (12) is provided with the short section (13) which is connected with the main vibration area (3), and the short section (13) is arranged in parallel with the long section (11).
2. A quartz crystal vibrator for reducing heat transfer capability as defined in claim 1, wherein: the electrode pin (4) is rectangular in shape.
3. A quartz crystal vibrator for reducing heat transfer capability as defined in claim 1, wherein: the shape of the main vibration area (3) is rectangular.
4. A quartz crystal vibrator for reducing heat transfer capability as defined in claim 1, wherein: the non-main vibration area on the upper surface of the quartz crystal (1) and the non-main vibration area on the lower surface of the quartz crystal (1) are symmetrically arranged.
5. A quartz crystal vibrator for reducing heat transfer capability as defined in claim 1, wherein: the width of the long strip section (11), the transition section (12) and the short strip section (13) ranges from 10 mu m to 70 mu m.
6. A quartz crystal vibrator for reducing heat transfer capability as defined in claim 1, wherein: the distance between the long strip section (11) and the short strip section (13) is more than 50 mu m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322195667.9U CN220586253U (en) | 2023-08-16 | 2023-08-16 | Quartz crystal vibrator capable of reducing heat conduction capacity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322195667.9U CN220586253U (en) | 2023-08-16 | 2023-08-16 | Quartz crystal vibrator capable of reducing heat conduction capacity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220586253U true CN220586253U (en) | 2024-03-12 |
Family
ID=90118701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322195667.9U Active CN220586253U (en) | 2023-08-16 | 2023-08-16 | Quartz crystal vibrator capable of reducing heat conduction capacity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220586253U (en) |
-
2023
- 2023-08-16 CN CN202322195667.9U patent/CN220586253U/en active Active
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