CN204465477U - A kind of low-frequency small-sized crystal resonator - Google Patents
A kind of low-frequency small-sized crystal resonator Download PDFInfo
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- CN204465477U CN204465477U CN201520152279.5U CN201520152279U CN204465477U CN 204465477 U CN204465477 U CN 204465477U CN 201520152279 U CN201520152279 U CN 201520152279U CN 204465477 U CN204465477 U CN 204465477U
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Abstract
The utility model relates to crystal resonator, specifically a kind of low-frequency small-sized quartz-crystal resonator, comprise pedestal, upper cover and quartz wafer, quartz wafer upper and lower surface is coated with two electrodes, it is characterized in that: described pedestal is provided with four conductive glue regions, four conductive glue regions are respectively arranged with primer, and the electrode edge of two electrodes of described quartz wafer connects described pedestal by four primers.The utility model adopts in pedestal four primer connecting electrodes and fixing quartz wafer, improve the resistance to shock of product, reduce product contact impedance and stress impedance, improve the Q value of quartz-crystal resonator simultaneously, also reduce conducting resinl consumption, provide cost savings, achieve the miniaturization of this type of crystal resonator, lightening.
Description
Technical field
The utility model relates to a kind of crystal resonator, particularly relates to a kind of low-frequency small-sized crystal resonator.
Background technology
Along with the miniaturization of electronic terminal product, the development of portability, an urgent demand quartz crystal components and parts to low-frequency small-sized crystal resonator development that is miniaturized and high stability direction, have miniaturization, low noise, Low ESR, high q-factor, high stability feature low-frequency small-sized quartz-crystal resonator more and more become the focus of people's concern.
AT cut type quartz crystal components and parts are due to its good frequency-temperature characteristic and its high stability frequency stability, become the first-selection of the frequency device of Communications Market, but due to its resonance frequency and wafer thickness inversely, frequency is lower, thickness is larger, and Chip-R is also inversely proportional to wafer frequency, and wafer frequency is lower, resistance is larger, and especially the electrical characteristic of the low frequency quartz crystal resonator of 3.0MHz ~ 9.0MHz is obvious especially.In prior art, in quartz crystal components and parts industry, traditional primer and face cementing conjunction connecting electrode the technology of monolateral fixing quartz wafer can not meet the part of properties of miniaturized quartz crystal, as Low ESR, high q-factor, high stability etc., adopt primer to combine with the glue point of face glue to be in addition connected, add contact impedance and the stress impedance of electrode, add face glue point and contact the risk causing short circuit with upper cover, 2 glue points fix quartz wafer, when extraneous judder, its resistance to shock weakens.Below the requirement of quartz-crystal resonator to more miniaturization is all limited.
Summary of the invention
The purpose of this utility model is not enough for prior art, provide a kind of can effectively reduce product contact impedance and stress impedance can ensure again the low-frequency small-sized quartz-crystal resonator of the resistance to shock of product.
The utility model realizes by the following technical solutions:
A kind of low-frequency small-sized quartz-crystal resonator, comprise pedestal, upper cover and quartz wafer, quartz wafer upper and lower surface is coated with two electrodes, it is characterized in that: described pedestal is provided with four conductive glue regions, four conductive glue regions are respectively arranged with primer, and the electrode edge of two electrodes of described quartz wafer connects described pedestal by four primers.
The utility model can recessing in pedestal, and quartz wafer upper and lower surface biconvex is also with chamfering, and quartz wafer is placed in base recess.
The electrode edge of above-mentioned quartz wafer two electrodes fixes the internal electrode of bonding pedestal by four primers, internal electrode connection pedestal outer electrode.
Two electrodes of the utility model quartz wafer are plated film silver electrode.
Four primer connecting electrodes in the utility model employing pedestal and fixing quartz wafer, product is when being subject to outside judder, effectively reduce product thickness, avoid the possibility that quartz wafer touches upper cover, four primers are used to be communicated with electrode, improve the resistance to shock of product, only some primer is used not put face glue, electrode and conducting resinl contact area are reduced, thus reduce product contact impedance and stress impedance, improve the Q value of quartz-crystal resonator simultaneously, also reduce conducting resinl consumption simultaneously, provide cost savings, achieve the miniaturization of this type of crystal resonator, lightening.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is base construction schematic diagram.
Fig. 3 is superstructure schematic diagram.
Fig. 4 is quartz wafer structural representation.
Embodiment
Referring to Fig. 1-4, embodiment of the present utility model is described further.
As shown in Figure 1, a kind of low-frequency small-sized quartz-crystal resonator, comprises pedestal 1, upper cover 2 and quartz wafer 3, recessing in described pedestal 1, quartz wafer 3 is inserted in base recess, and described upper cover 2 and pedestal 1 are by welder vacuum seal, and air-tightness and the electrical characteristic of guarantee product are qualified.Described quartz wafer 3 is surperficial biconvex and with chamfering, the overall dimension of quartz wafer and convex surface deburring shape require design according to equivalent parameters.Described quartz wafer 3 upper and lower surface is coated with two silver electrodes, namely quartz wafer 3 is provided with the first electrode 4 and the second electrode 5, described pedestal is provided with the first conductive glue region 6, second conductive glue region 7, 3rd conductive glue region 8 and the 4th conductive glue region 9, described first conductive glue region 6 is provided with the first primer 10, described second conductive glue region 7 is provided with the second primer 11, 3rd conductive glue region 8 is provided with the 3rd primer 12, 4th conductive glue region 9 is provided with the 4th primer 13, described quartz wafer first electrode 4 and the second electrode 5 are respectively by the first primer 10, second primer 11, 3rd primer 12 is connected described pedestal 1 with the 4th primer 13, specifically the electrode edge of the first electrode 4 and the second electrode 5 is fixed the internal electrode of bonding pedestal 1 by primer, internal electrode connection pedestal 1 outer electrode.
Claims (5)
1. a low-frequency small-sized quartz-crystal resonator, comprise pedestal, upper cover and quartz wafer, quartz wafer upper and lower surface is coated with two electrodes, it is characterized in that: described pedestal is provided with four conductive glue regions, four conductive glue regions are respectively arranged with primer, and the electrode edge of two electrodes of described quartz wafer connects described pedestal by four primers.
2. a kind of low-frequency small-sized quartz-crystal resonator according to claim 1, is characterized in that: recessing in described pedestal, and quartz wafer upper and lower surface biconvex is also with chamfering, and quartz wafer is placed in base recess.
3. a kind of low-frequency small-sized quartz-crystal resonator according to claim 1 and 2, is characterized in that: the electrode edge of quartz wafer two electrodes fixes the internal electrode of bonding pedestal by four primers, internal electrode connection pedestal outer electrode.
4. a kind of low-frequency small-sized quartz-crystal resonator according to claim 1 and 2, is characterized in that: two electrodes of described quartz wafer are plated film silver electrode.
5. a kind of low-frequency small-sized quartz-crystal resonator according to claim 1, is characterized in that: described upper cover and pedestal are by welder vacuum seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520152279.5U CN204465477U (en) | 2015-03-17 | 2015-03-17 | A kind of low-frequency small-sized crystal resonator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520152279.5U CN204465477U (en) | 2015-03-17 | 2015-03-17 | A kind of low-frequency small-sized crystal resonator |
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| CN204465477U true CN204465477U (en) | 2015-07-08 |
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| CN201520152279.5U Active CN204465477U (en) | 2015-03-17 | 2015-03-17 | A kind of low-frequency small-sized crystal resonator |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105811916A (en) * | 2016-05-06 | 2016-07-27 | 唐山国芯晶源电子有限公司 | Vibration-proof quartz crystal oscillator and processing method thereof |
| WO2017012348A1 (en) * | 2015-07-22 | 2017-01-26 | 成都泰美克晶体技术有限公司 | Novel piezoelectric quartz wafer with dual-convex structure and processing craft therefor |
| CN106849900A (en) * | 2016-12-15 | 2017-06-13 | 北京无线电计量测试研究所 | A kind of pedestal for installing quartz wafer |
| CN113395053A (en) * | 2021-03-02 | 2021-09-14 | 天津大学 | Quartz thin film resonator and method of manufacturing the same |
| TWI746033B (en) * | 2019-07-09 | 2021-11-11 | 大陸商成都泰美克晶體技術有限公司 | A quartz crystal resonator having raised structure at edges thereof |
-
2015
- 2015-03-17 CN CN201520152279.5U patent/CN204465477U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017012348A1 (en) * | 2015-07-22 | 2017-01-26 | 成都泰美克晶体技术有限公司 | Novel piezoelectric quartz wafer with dual-convex structure and processing craft therefor |
| CN105811916A (en) * | 2016-05-06 | 2016-07-27 | 唐山国芯晶源电子有限公司 | Vibration-proof quartz crystal oscillator and processing method thereof |
| CN105811916B (en) * | 2016-05-06 | 2018-12-21 | 唐山国芯晶源电子有限公司 | Antivibration quartz oscillator and its processing method |
| CN106849900A (en) * | 2016-12-15 | 2017-06-13 | 北京无线电计量测试研究所 | A kind of pedestal for installing quartz wafer |
| TWI746033B (en) * | 2019-07-09 | 2021-11-11 | 大陸商成都泰美克晶體技術有限公司 | A quartz crystal resonator having raised structure at edges thereof |
| CN113395053A (en) * | 2021-03-02 | 2021-09-14 | 天津大学 | Quartz thin film resonator and method of manufacturing the same |
| CN113395053B (en) * | 2021-03-02 | 2022-12-09 | 广州乐仪投资有限公司 | Quartz thin film resonator and method of manufacturing the same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170504 Address after: 321016 Zhejiang, Jinhua, Hong Hong West Road, No. 555 Patentee after: East crystal electronic Jinhua Co., Ltd. Address before: 321017 No. 555, rainbow West Road, Jinhua, Zhejiang Patentee before: Dongjing Electronic Co., Ltd., Zhejiang |