CN204131474U - A kind of piezoelectric quartz crystal resonator - Google Patents
A kind of piezoelectric quartz crystal resonator Download PDFInfo
- Publication number
- CN204131474U CN204131474U CN201420614459.6U CN201420614459U CN204131474U CN 204131474 U CN204131474 U CN 204131474U CN 201420614459 U CN201420614459 U CN 201420614459U CN 204131474 U CN204131474 U CN 204131474U
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- CN
- China
- Prior art keywords
- crystal resonator
- quartz
- thermistor
- pad
- circuit board
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 239000013078 crystal Substances 0.000 title claims abstract description 103
- 239000010453 quartz Substances 0.000 title claims abstract description 31
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 229920001169 thermoplastic Polymers 0.000 claims abstract description 11
- 239000004416 thermosoftening plastic Substances 0.000 claims abstract description 11
- 238000010586 diagram Methods 0.000 description 15
- 238000004519 manufacturing process Methods 0.000 description 15
- 238000000034 method Methods 0.000 description 15
- 238000003466 welding Methods 0.000 description 11
- 238000000605 extraction Methods 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229910000679 solder Inorganic materials 0.000 description 3
- 238000005476 soldering Methods 0.000 description 3
- PCTMTFRHKVHKIS-BMFZQQSSSA-N (1s,3r,4e,6e,8e,10e,12e,14e,16e,18s,19r,20r,21s,25r,27r,30r,31r,33s,35r,37s,38r)-3-[(2r,3s,4s,5s,6r)-4-amino-3,5-dihydroxy-6-methyloxan-2-yl]oxy-19,25,27,30,31,33,35,37-octahydroxy-18,20,21-trimethyl-23-oxo-22,39-dioxabicyclo[33.3.1]nonatriaconta-4,6,8,10 Chemical compound C1C=C2C[C@@H](OS(O)(=O)=O)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@H]([C@H](C)CCCC(C)C)[C@@]1(C)CC2.O[C@H]1[C@@H](N)[C@H](O)[C@@H](C)O[C@H]1O[C@H]1/C=C/C=C/C=C/C=C/C=C/C=C/C=C/[C@H](C)[C@@H](O)[C@@H](C)[C@H](C)OC(=O)C[C@H](O)C[C@H](O)CC[C@@H](O)[C@H](O)C[C@H](O)C[C@](O)(C[C@H](O)[C@H]2C(O)=O)O[C@H]2C1 PCTMTFRHKVHKIS-BMFZQQSSSA-N 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 239000006071 cream Substances 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 238000001465 metallisation Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Landscapes
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Abstract
The utility model provides a kind of piezoelectric quartz crystal resonator, this piezoelectric quartz crystal resonator, comprise circuit board, quartz-crystal resonator and thermistor, described thermistor is for detecting the temperature of described quartz-crystal resonator, described thermistor and described quartz-crystal resonator are laid on described circuit board, and are connected by the circuit laid on circuit boards each other; The embedding that described thermistor and described quartz-crystal resonator adopt thermoplastic separate, and have contact between the two thermoplastic for embedding.Described piezoelectric quartz crystal resonator makes described quartz-crystal resonator and described thermistor lay the embedding using thermoplastic separate afterwards on circuit boards, quartz-crystal resonator is made to have independently cavity, thermistor can be avoided the pollution of quartz-crystal resonator, meet the demand of higher frequency stability simultaneously.
Description
Technical field
The utility model relates to resonator, particularly relates to a kind of piezoelectric quartz crystal resonator.
Background technology
Piezoelectric quartz crystal resonator, although frequency-temperature characteristic is better, in order to meet the frequency stability of requirements at the higher level, also need to gather piezoelectric quartz crystal or piezoelectric quartz crystal ambient temperature, and corresponding compensation or correction is done to frequency-temperature characteristic, thus meet actual operation requirements.
At present containing the piezoelectric quartz crystal resonator of thermistor, be that thermistor and piezoelectric quartz crystal resonance piece are enclosed in same cavity, or thermistor and piezoelectric quartz crystal resonance piece are encapsulated in the upper and lower surface of substrate respectively.Method thermistor and piezoelectric quartz crystal being enclosed in a cavity is easily formed piezoelectric quartz crystal resonance piece to be polluted, and affects the stability of resonator parameter.Thermistor and piezoelectric quartz crystal are encapsulated in the method for the upper and lower surface of substrate, although separated cavity, pedestal cost can be made to increase, simultaneously because assembling process needs special equipment, production cost can be made to increase.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of piezoelectric quartz crystal resonator, is intended to solve thermistor and quartz-crystal resonator in prior art and is encapsulated in the problem in a cavity, quartz-crystal resonator being formed to pollution.
The utility model realizes like this, a kind of piezoelectric quartz crystal resonator, comprise circuit board, quartz-crystal resonator and thermistor, described thermistor is for detecting the temperature of described quartz-crystal resonator, described thermistor and described quartz-crystal resonator are laid on described circuit board, and are connected by the circuit laid on circuit boards each other; The embedding that described thermistor and described quartz-crystal resonator adopt thermoplastic separate, and have contact between the two thermoplastic for embedding.
Further, described thermistor and described quartz-crystal resonator are laid on the same side of described circuit board side by side, and are reserved with gap between described thermistor and described quartz-crystal resonator.
Further, described thermistor is laid in the back side of described quartz-crystal resonator, and the pad of described thermistor is connected with the pad of described quartz-crystal resonator.
Further, the centre position being positioned at quartz-crystal resonator placement in described circuit board is provided with through hole, and described thermistor is arranged in described through hole.
Utility model the utility model compared with prior art, beneficial effect is: described piezoelectric quartz crystal resonator uses resin injection molding after described quartz-crystal resonator and described thermistor are laid on circuit boards, quartz-crystal resonator is made to have independently cavity, thermistor can be avoided the pollution of quartz-crystal resonator, meet the demand of higher frequency stability simultaneously.
Accompanying drawing explanation
Fig. 1 is the design cell circuit board schematic diagram of the first manufacture method of this piezoelectric quartz crystal resonator;
The matrix schematic diagram that Fig. 2 is made up of several design cells in Fig. 1;
Fig. 3 is the schematic diagram after the board pads print solder paste in Fig. 2;
Fig. 4 is the schematic diagram welding electric quartz-crystal resonator and thermistor in figure 3;
Fig. 5 be by Fig. 4 injection moulding after schematic diagram;
Fig. 6 is schematic diagram Fig. 5 being divided into single quartz-crystal resonator;
Fig. 7 is the decomposing schematic representation of Fig. 6;
Fig. 8 is the design cell circuit board schematic diagram of the second manufacture method of this piezoelectric quartz crystal resonator;
The matrix schematic diagram that Fig. 9 is made up of several design cells in Fig. 8;
Figure 10 is the schematic diagram after the board pads print solder paste in Fig. 9;
Figure 11 is the schematic diagram welding electric quartz-crystal resonator in Figure 10;
Figure 12 is the schematic diagram welding thermistor in Figure 11;
Figure 13 is the schematic diagram in Figure 12 after filling through hole glue;
Figure 14 is the schematic diagram after being split by Figure 13;
Figure 15 is the decomposing schematic representation of Figure 14.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Shown in composition graphs 7 and Figure 15, a kind of piezoelectric quartz crystal resonator 100, comprise circuit board 103, quartz-crystal resonator 101 and thermistor 102, thermistor 102 is for detecting the temperature of quartz-crystal resonator 101, thermistor 102 and quartz-crystal resonator 101 are laid on circuit board 103, and connected by the circuit be laid on circuit board 103 each other, namely the pad 1011 of quartz-crystal resonator 101 is connected with the pad 1021 of thermistor 102 by being laid in the circuit in circuit board 103.The embedding that thermistor 102 and quartz-crystal resonator 101 adopt thermoplastic 104 separate, and have contact between the two thermoplastic for embedding, namely quartz-crystal resonator 101 has independently cavity.
Composition graphs 1 is to the first embodiment that Figure 7 shows that piezoelectric quartz crystal resonator 100, thermistor 102 and quartz-crystal resonator 101 are laid on the same side of circuit board 103 side by side, and are reserved with gap between thermistor 102 and quartz-crystal resonator 101.
Composition graphs 8 is to the second embodiment that Figure 15 shows that piezoelectric quartz crystal resonator 100, and thermistor 102 is laid in the back side of quartz-crystal resonator 101, and the pad 1021 of thermistor 102 is connected with the pad 1011 of quartz-crystal resonator 101.The middle position being positioned at quartz-crystal resonator 101 placement in circuit board 103 is provided with through hole 106, and thermistor 102 is fixedly installed in through hole 106.
A manufacture method for piezoelectric quartz crystal resonator, Fig. 1 to Fig. 7 is the schematic diagram of each step in the first manufacture method, and Fig. 8 to Figure 15 is the schematic diagram of each step in the second manufacture method.These two kinds of manufacture methods, mainly exist different in steps A with step C.Manufacture method comprises the following steps:
Steps A, on circuit board 103, arrange several design cells, wherein each design cell comprises a quartz-crystal resonator 101 and a thermistor 102, and reserved subdivided gap between adjacent design cell, as in figure 1 or figure 8.Preferably, several design cells can be arranged in matrix, and reserve suitable subdivided gap between each design cell, as shown in Figure 2 and Figure 9.
Step B, arrange the extraction pad of quartz-crystal resonator 101 at the bottom of circuit board 103, the top layer of circuit board 103 arranges the pad 1011 for welding quartz-crystal resonator 101; Simultaneously the pad 1021 corresponding to thermistor 102 is set at the homonymy of quartz-crystal resonator pad 1011 or heteropleural.
Step C, quartz-crystal resonator 101 and thermistor 102 to be welded on the pad of opposite position.
Step D, the quartz-crystal resonator 101 using thermoplastic 104 butt welding to connect and thermistor 102 carry out separate embedding, and have contact between the two thermoplastic for embedding.
Step e, the circuit board of injection formed to be split in units of described design cell, make each piezoelectric quartz crystal resonator 100 split include a thermistor 102 and a quartz-crystal resonator 101.
The first manufacture method is that the pad 1011 of quartz-crystal resonator is arranged on the adjacent position of homonymy with the pad 1021 of thermistor 102.Be specially, the bottom of circuit board 103 arranges four pads, and these four pads are the extraction pad of quartz-crystal resonator 101, and such as, four pads are respectively pad A, pad B, pad C and pad D.Pad A is the first electrode of quartz-crystal resonator 101, and pad B is earth terminal, connects the second exit of thermistor 102 simultaneously, and pad C is the second electrode of quartz-crystal resonator 101, and pad D is the first exit of thermistor 102.Circuit board 103 top layer is placed and is encapsulated four corresponding pads with quartz-crystal resonator 101, for welding quartz-crystal resonator 101.Place outward at ABCD tetra-pads of circuit board 103 simultaneously and encapsulate two corresponding pads with thermistor 102, for welding thermistor 102.The corresponding pad of top layer is connected with bottom pad by conductor, metallization via hole, as shown in Figure 1.
When using the first manufacture method, step C specifically comprises the following steps: step C01, the print solder paste 105 that (comprises the pad 1011 of quartz-crystal resonator 101 and the pad 1021 of thermistor 102) on the pad of circuit board 103, as shown in Figure 3, and quartz-crystal resonator 101 and thermistor 102 are attached to corresponding position.Step C02, the circuit board in step C01 is carried out Reflow Soldering, and the scaling powder on cleaning circuit plate, as shown in Figure 4.
The second manufacture method is that the pad 1011 of quartz-crystal resonator is arranged on heteropleural with the pad 1021 of thermistor 102.Thermistor 102 is arranged at the back side of quartz-crystal resonator 101 and is positioned at circuit board 103 by the utility model, as shown in Figure 8.Be specially, the bottom of circuit board 103 arranges the extraction pad that four pads are quartz-crystal resonator 101, and such as, described four pads are respectively pad A, pad B, pad C and pad D.Pad A is the first electrode of quartz-crystal resonator 101, and pad B is earth terminal, connects the second exit of thermistor 102 simultaneously, and pad C is the second electrode of quartz-crystal resonator 101, and pad D is the first exit of thermistor 102.The top layer of circuit board 103 is placed quartz-crystal resonator 101 and is encapsulated four corresponding pads, for welding quartz-crystal resonator 101.In ABCD tetra-pads of circuit board 103, open a through hole 106, the two ends design side pad 1021 of through hole 106, for installing and welding thermistor 102 simultaneously.The corresponding pad of top layer is connected with bottom pad by conductor, metallization via hole, the thickness of circuit board 103 slightly larger than the thickness of thermistor 102, as shown in Figure 8.
When using the second manufacture method, step C specifically comprises the following steps: the pad 1011 of quartz-crystal resonators 101 all in circuit board 103 puts tin cream 105, quartz-crystal resonator 101 is attached to corresponding position, and carries out Reflow Soldering and make its firm welding, as shown in figure 11; Put tin cream from circuit board 103 opposite side at the pad 1021 of all thermistors 102, thermistor 102 is attached in through hole 106, carry out Reflow Soldering and make its firm welding, and the scaling powder on cleaning circuit plate, as shown in figure 12; By through hole 106 glue, glue is made to fill quartz-crystal resonator 101, space between thermistor 102 and circuit board 103.
Described piezoelectric quartz crystal resonator can be used for needing to frequency the occasion that height, stability are high, as smart mobile phone, intelligent terminal, global positioning system (GPS) etc., also may be used for temperature compensated crystal oscillator or other require in high electronic equipment frequency stability.
Described piezoelectric quartz crystal resonator ensure that quartz-crystal resonator has independently cavity, makes again thermistor can collect the temperature of quartz-crystal resonator, and can meet the demand of higher frequency stability.Adopt manufacture method described in the utility model to reduce cost of manufacture, convenient production in enormous quantities simultaneously.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection range of the present utility model.
Claims (4)
1. a piezoelectric quartz crystal resonator, comprise circuit board, quartz-crystal resonator and thermistor, described thermistor is for detecting the temperature of described quartz-crystal resonator, it is characterized in that, described thermistor and described quartz-crystal resonator are laid on described circuit board, and are connected by the circuit laid on circuit boards each other; The embedding that described thermistor and described quartz-crystal resonator adopt thermoplastic separate, and have contact between the two thermoplastic for embedding.
2. piezoelectric quartz crystal resonator according to claim 1, it is characterized in that, described thermistor and described quartz-crystal resonator are laid on the same side of described circuit board side by side, and are reserved with gap between described thermistor and described quartz-crystal resonator.
3. piezoelectric quartz crystal resonator according to claim 1, is characterized in that, described thermistor is laid in the back side of described quartz-crystal resonator, and the pad of described thermistor is connected with the pad of described quartz-crystal resonator.
4. piezoelectric quartz crystal resonator according to claim 3, is characterized in that, the centre position being positioned at quartz-crystal resonator placement in described circuit board is provided with through hole, and described thermistor is arranged in described through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420614459.6U CN204131474U (en) | 2014-10-22 | 2014-10-22 | A kind of piezoelectric quartz crystal resonator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420614459.6U CN204131474U (en) | 2014-10-22 | 2014-10-22 | A kind of piezoelectric quartz crystal resonator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204131474U true CN204131474U (en) | 2015-01-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420614459.6U Expired - Lifetime CN204131474U (en) | 2014-10-22 | 2014-10-22 | A kind of piezoelectric quartz crystal resonator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204131474U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104283524A (en) * | 2014-10-22 | 2015-01-14 | 应达利电子(深圳)有限公司 | Piezoelectric quartz-crystal resonator and manufacturing method thereof |
| WO2017143556A1 (en) * | 2016-02-25 | 2017-08-31 | 华为技术有限公司 | Dispensing method and circuit board |
-
2014
- 2014-10-22 CN CN201420614459.6U patent/CN204131474U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104283524A (en) * | 2014-10-22 | 2015-01-14 | 应达利电子(深圳)有限公司 | Piezoelectric quartz-crystal resonator and manufacturing method thereof |
| CN104283524B (en) * | 2014-10-22 | 2017-07-14 | 应达利电子股份有限公司 | A kind of piezoelectric quartz crystal resonator and preparation method thereof |
| WO2017143556A1 (en) * | 2016-02-25 | 2017-08-31 | 华为技术有限公司 | Dispensing method and circuit board |
| CN108353506A (en) * | 2016-02-25 | 2018-07-31 | 华为技术有限公司 | Dispensing method and circuit board |
| US10834826B2 (en) | 2016-02-25 | 2020-11-10 | Huawei Technologies Co., Ltd. | Glue dispensing method and circuit board |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 518000, building 3-4, building C, 4 / F, Tai Po Industrial Park, Fenghuang second industrial zone, Fenghuang Industrial Zone, Baoan District, Shenzhen, Guangdong, Fuyong, China Patentee after: YINGDALI ELECTRONICS CO., LTD. Address before: 518103 D, Tai Po Industrial Park, Fenghuang second industrial zone, Fuyong Town, Shenzhen, Guangdong, Baoan District, China Patentee before: Interquip Electronics (Shenzhen) Co., Ltd. |