CN203216942U - Testing clamp for surface acoustic wave device - Google Patents
Testing clamp for surface acoustic wave device Download PDFInfo
- Publication number
- CN203216942U CN203216942U CN 201220640748 CN201220640748U CN203216942U CN 203216942 U CN203216942 U CN 203216942U CN 201220640748 CN201220640748 CN 201220640748 CN 201220640748 U CN201220640748 U CN 201220640748U CN 203216942 U CN203216942 U CN 203216942U
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- acoustic wave
- surface acoustic
- pcb
- saw
- test
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Abstract
The utility model provides a testing clamp for a surface acoustic wave device, which comprises the following components: a conductive film, two SMA joints, an aluminum base, an element positioning board and a PCB. The PCB is arranged on the aluminum base. The two SMA joints are respectively arranged at two ends of the PCB. The element positioning board is arranged on the PCB. The conductive film is arranged on the element positioning board. According to the testing clamp, an external electrode of the surface acoustic wave device is connected with the PCB through the conductive film. Because of flexibility of the conductive film, correctness, reliability and repeatability of the connection are ensured. The testing clamp can be used for scientific research and batch production. Furthermore in high-frequency product test, the test result is closer to inherent performance of the device.
Description
Technical field
The utility model relates to a kind of test fixture of SAW (Surface Acoustic Wave) device, belongs to semiconductor planar manufacturing technology field.
Background technology
The chip encapsulation of SAW (Surface Acoustic Wave) device is emerging in the last few years technology, spring contact formula clamp fixture is used in no pin test traditionally, for producing in enormous quantities, the sound table device of miniaturization can not satisfy its reliability requirement, high-frequency sound table device has strict demand to the distribution parameter that comprises test fixture in addition, has only to reduce these distribution parameters as far as possible and just can make sound table device fully show its inherent characteristic.In addition, the test request of sound table device carried out in shielding cavity in the past, then was to be exposed to fully in the external electromagnetic environment in actual the use, and the authenticity of device and practical manifestation produce contradiction.In the prior art; user regular meeting reduces this gap by the method for outside coupling as far as possible; but only limit to the big relatively situation of adjustable extent; in the high frequency product test process near the 50Ohm system; owing to need extremely small adjustment, cause the actual value that device can't the reactor product test because of the electrical property distortion when test.
Summary of the invention
The utility model is for solving existing SAW (Surface Acoustic Wave) device when carrying out the high frequency product test, owing to need extremely small adjustment, cause device when test because of the electrical property distortion can't the reactor product test the problem of actual value, and then provide a kind of test fixture of SAW (Surface Acoustic Wave) device.For this reason, the utility model provides following technical scheme:
The test fixture of SAW (Surface Acoustic Wave) device, comprise conducting film, two sub-miniature A connectors, aluminium matter pedestal, element location-plate and pcb boards, described pcb board is arranged on the described aluminium matter pedestal, described two sub-miniature A connectors are separately positioned on the two ends of described pcb board, described element location-plate is arranged on the described pcb board, and described conducting film is arranged on the described element location-plate.
The technical scheme that the utility model provides is connected with pcb board by the external electrode of conducting film with SAW (Surface Acoustic Wave) device, because the flexibility of conducting film has guaranteed accuracy, reliability and the repeatability of this connection, not only being used for scientific research and testing also can be used for producing in batches, and when carrying out the high frequency product test, test result is more near the proper property of device.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the utility model embodiment, the accompanying drawing of required use is done to introduce simply in will describing embodiment below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of the test fixture of the SAW (Surface Acoustic Wave) device that provides of embodiment of the present utility model;
Fig. 2 is the plan structure synoptic diagram of the test fixture of the SAW (Surface Acoustic Wave) device that provides of embodiment of the present utility model;
Fig. 3 is the employing traditional test anchor clamps that provide of embodiment of the present utility model and the curve contrast synoptic diagram of the test result of the test fixture of the SAW (Surface Acoustic Wave) device that adopts this embodiment to provide.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
This embodiment provides a kind of test fixture of SAW (Surface Acoustic Wave) device, as depicted in figs. 1 and 2, comprise conducting film 1, two sub-miniature A connectors 2, aluminium matter pedestal 3, element location-plate 4 and pcb boards 5, pcb board 5 is arranged on the aluminium matter pedestal 3, two sub-miniature A connectors 2 are separately positioned on the two ends of pcb board 5, element location-plate 4 is arranged on the pcb board 5, and conducting film 1 is arranged on the element location-plate 4.Wherein, conducting film 1 can adopt flexible material, and the sheet material of pcb board 5 can adopt ceramic dielectric.
Concrete, the key issue that the test fixture of the SAW (Surface Acoustic Wave) device that this embodiment provides on the make will solve is the impedance in 50 ohm in circuit and space.Adopt aluminium block as aluminium matter pedestal 3; Pcb board 5 is designed to 0.9 millimeter of live width, 0.5 millimeter of thickness of slab, and sheet material is ceramic dielectric; Conducting film 1 is the film of the rubber material of thickness 0.25mm, and inner embedding diameter is the spun gold of 0.05mm; SMA (Small A Type, microwave high-frequency connector) joint 2 is that copper outside is gold-plated, and model is the outsourcing piece of SMD5502.The distributed component that may use is 0402 inductance and electric capacity.
From effect comparing result shown in Figure 3 as can be known: label A represents to adopt the result of traditional test anchor clamps test sound table device, it is relatively poor that the far-end of device suppresses level, curve is straight, and the explanation through connect signal is big, and the noise that stopband suppresses is capped, and the actual performance of device is hidden; Label B represents to adopt the test result of the test fixture of the SAW (Surface Acoustic Wave) device that this embodiment provides, curve totally suppress level than the traditional test anchor clamps low 25dB at least, background noise manifests substantially, illustrates that the far-end of device suppresses and can reach more than the 50dB at least.
The technical scheme that adopts this embodiment to provide, be connected with pcb board by the external electrode of conducting film with SAW (Surface Acoustic Wave) device, because the flexibility of conducting film has guaranteed accuracy, reliability and the repeatability of this connection, not only being used for scientific research and testing also can be used for producing in batches, and when carrying out the high frequency product test, test result is more near the proper property of device.
The above; it only is the preferable embodiment of the utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model embodiment discloses; the variation that can expect easily or replacement all should be encompassed within the protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claim.
Claims (3)
1. the test fixture of SAW (Surface Acoustic Wave) device, it is characterized in that, comprise conducting film, two sub-miniature A connectors, aluminium matter pedestal, element location-plate and pcb boards, described pcb board is arranged on the described aluminium matter pedestal, described two sub-miniature A connectors are separately positioned on the two ends of described pcb board, described element location-plate is arranged on the described pcb board, and described conducting film is arranged on the described element location-plate.
2. the test fixture of SAW (Surface Acoustic Wave) device according to claim 1 is characterized in that, described conducting film adopts flexible material.
3. the test fixture of SAW (Surface Acoustic Wave) device according to claim 1 is characterized in that, the sheet material of described pcb board adopts ceramic dielectric.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220640748 CN203216942U (en) | 2012-11-28 | 2012-11-28 | Testing clamp for surface acoustic wave device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220640748 CN203216942U (en) | 2012-11-28 | 2012-11-28 | Testing clamp for surface acoustic wave device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203216942U true CN203216942U (en) | 2013-09-25 |
Family
ID=49206467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220640748 Expired - Lifetime CN203216942U (en) | 2012-11-28 | 2012-11-28 | Testing clamp for surface acoustic wave device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203216942U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106093484A (en) * | 2016-07-28 | 2016-11-09 | 中国电子科技集团公司第二十六研究所 | Surface mount SAW filter test fixture |
| CN112345845A (en) * | 2020-09-25 | 2021-02-09 | 华东光电集成器件研究所 | Microminiature encapsulation circuit aging clamp |
-
2012
- 2012-11-28 CN CN 201220640748 patent/CN203216942U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106093484A (en) * | 2016-07-28 | 2016-11-09 | 中国电子科技集团公司第二十六研究所 | Surface mount SAW filter test fixture |
| CN106093484B (en) * | 2016-07-28 | 2018-12-21 | 中国电子科技集团公司第二十六研究所 | Surface mount SAW filter test fixture |
| CN112345845A (en) * | 2020-09-25 | 2021-02-09 | 华东光电集成器件研究所 | Microminiature encapsulation circuit aging clamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130925 |
|
| CX01 | Expiry of patent term |