CN201536354U - Super-high base frequency quartz crystal resonator - Google Patents
Super-high base frequency quartz crystal resonator Download PDFInfo
- Publication number
- CN201536354U CN201536354U CN2009200876570U CN200920087657U CN201536354U CN 201536354 U CN201536354 U CN 201536354U CN 2009200876570 U CN2009200876570 U CN 2009200876570U CN 200920087657 U CN200920087657 U CN 200920087657U CN 201536354 U CN201536354 U CN 201536354U
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- quartz crystal
- crystal resonator
- quartz
- super
- film plating
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Abstract
A super-high base frequency quartz crystal resonator comprises a quartz crystal (1), a bracket (2) and a baseplate (3), wherein the bracket (2) is welded on the quartz crystal (1) through conducting resin (5), film plating layers (4) on the two corresponding surfaces in the middle of the quartz crystal are square, and a leading tape (6) is positioned between each film plating layer (4) and the bracket (2). The utility model overcomes the defects that the unsymmetrical two poles of each film plating layer are easily caused by the round film plating structure of the conventional quartz crystal resonator. By adopting square aluminum electrodes, the super-elevation base frequency quartz crystal resonator provided by the utility model has better symmetry than that adopting round aluminum electrodes, thereby ensuring the consistency of the products parameters, achieving convenient processing and strong practicability, and meeting the requirements of the mass production.
Description
Technical field
The utility model relates to a kind of superelevation fundamental frequency quartz-crystal resonator.
Background technology
Quartz-crystal resonator is the oscillator of high accuracy and high stability, is widely used in fields such as colour TV, computer, Aero-Space.Its basic comprising is: the coating rete is as electrode on two corresponding surfaces in the centre position of a quartz wafer, on each electrode, respectively weld a support to substrate by leader tape, receive on the pin by lead-in wire again, add package casing and constitute (as shown in Figure 1, shell does not draw among the figure), (the coatings area is bigger for traditional circular coating structure, be 2mm), superelevation fundamental frequency quartz crystal requires the plated film area less, and adopt traditional circular coating structure can't guarantee the symmetry at the two poles of the earth, thereby cause the instability of the service behaviour of quartz-crystal resonator.
Traditional coating structure considers that mainly frequency is lower, frequency range is generally 1MHz-40MHz scope (mill run can be considered 60MHz), (frequency is high more at φ 1.0mm-φ 8.0mm for plated film vibration effective area diameter, the plated film area must be more little), front plated film shape is 180 ° with reverse side plated film shape, the vibration area must overlap (could satisfy the requirement of product electrical quantity well), when vibration area effective diameter is following less than φ 0.5mm, effective coincidence coating clamp precision of vibration area can't guarantee, traditional coating structure directly influences the product electrical quantity, so can't satisfy high fundamental frequency product design requirement.
Summary of the invention
The purpose of this utility model is to overcome the circular coating structure of above-mentioned existing quartz-crystal resonator and causes the inequipolar weak point of coatings easily, and a kind of superelevation fundamental frequency quartz-crystal resonator is provided, and it can guarantee that product parameters adheres to specification.
The purpose of this utility model reaches by following measure: superelevation fundamental frequency quartz-crystal resonator, it comprises that quartz crystal, support, substrate, support are welded on the quartz crystal by conducting resinl, it is characterized in that being positioned at that coatings has leader tape between coatings and support for square on two corresponding surfaces in centre position of quartz crystal.
In technique scheme, the square length of side of described coatings is 0.2mm.
In technique scheme, described front plated film shape is 90 ° with reverse side plated film shape and intersects at central point.
The utility model superelevation fundamental frequency quartz-crystal resonator has following advantage: 1.. adopt square by the aluminium electrode, symmetry than circular design is good, thereby has guaranteed the consistency of product parameters, 2.. adopt square plated film design, easy to process, it is practical to satisfy production in enormous quantities.
Description of drawings
Fig. 1 is the structural representation of circular plated film quartz-crystal resonator.
Fig. 2 is the structural representation of the square plated film quartz-crystal resonator of the utility model.
Fig. 3 is frequency scanning figure of the present utility model.
Embodiment
Describe performance of the present utility model in detail below in conjunction with accompanying drawing, but they do not constitute to qualification of the present utility model, only do for example.Simultaneously by illustrating that advantage of the present utility model will become clear more and understanding easily.
Consult accompanying drawing as can be known: the utility model superelevation fundamental frequency quartz-crystal resonator, it comprises that quartz crystal 1, support 2, substrate 3, support 2 are welded on the quartz crystal 1 by conducting resinl 5, be positioned at that coatings 4 is square on two corresponding surfaces in centre position of quartz crystal, leader tape 6 is arranged between coatings 4 and support 2, the square length of side of coatings 4 is 0.2mm.Front plated film shape and reverse side plated film shape are 90 ° and intersect (as shown in Figure 2) at central point.
The utility model superelevation fundamental frequency quartz-crystal resonator is through frequency scanning, except that the main peak that shakes, and no parastic wasp.
The utility model superelevation fundamental frequency quartz-crystal resonator, in design process, taken into full account the parasitism inhibition level of product, the resonant resistance of product, consider through comprehensive Design, plated film vibration area effective area diameter is selected φ 0.2mm for use, adopting front plated film shape to be 90 ° with reverse side plated film shape intersects at central point, making product vibration area is square intersection, effectively the vibration area is guaranteed (the area size can be calculated conversion), can eliminate the coating clamp balanced error, consider the actual production problem that drops into from design, guarantee product electrical quantity horizontal stable.
Claims (3)
1. superelevation fundamental frequency quartz-crystal resonator, it comprises that quartz crystal (1), support (2), substrate (3), support (2) are welded on the quartz crystal (1) by conducting resinl (5), it is characterized in that being positioned at that coatings (4) has leader tape (6) to be positioned between coatings (4) and the support (2) for square on two corresponding surfaces in centre position of quartz crystal.
2. superelevation fundamental frequency quartz-crystal resonator according to claim 1, the square length of side that it is characterized in that described coatings (4) is 0.2mm.
3. superelevation fundamental frequency quartz-crystal resonator according to claim 1 and 2 is characterized in that described front plated film shape is 90 ° with reverse side plated film shape and intersects at central point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200876570U CN201536354U (en) | 2009-07-28 | 2009-07-28 | Super-high base frequency quartz crystal resonator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200876570U CN201536354U (en) | 2009-07-28 | 2009-07-28 | Super-high base frequency quartz crystal resonator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201536354U true CN201536354U (en) | 2010-07-28 |
Family
ID=42536128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200876570U Expired - Fee Related CN201536354U (en) | 2009-07-28 | 2009-07-28 | Super-high base frequency quartz crystal resonator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201536354U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103138710A (en) * | 2011-11-23 | 2013-06-05 | 北京晨晶电子有限公司 | Connecting method of wafer and base and obtained crystal resonator |
-
2009
- 2009-07-28 CN CN2009200876570U patent/CN201536354U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103138710A (en) * | 2011-11-23 | 2013-06-05 | 北京晨晶电子有限公司 | Connecting method of wafer and base and obtained crystal resonator |
| CN103138710B (en) * | 2011-11-23 | 2016-01-20 | 北京晨晶电子有限公司 | The method of attachment of wafer and pedestal and gained crystal resonator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100728 Termination date: 20130728 |