CN203385793U - Device for testing sheet resistance of carbon oil of circuit board - Google Patents
Device for testing sheet resistance of carbon oil of circuit board Download PDFInfo
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- CN203385793U CN203385793U CN201320537375.2U CN201320537375U CN203385793U CN 203385793 U CN203385793 U CN 203385793U CN 201320537375 U CN201320537375 U CN 201320537375U CN 203385793 U CN203385793 U CN 203385793U
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- carbon oil
- wire
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Abstract
The utility model discloses a device for testing the sheet resistance of circuit board carbon oil. The device comprises a carbon oil region, a first wire, a second wire and a resistance testing device. The carbon oil region is a cuboid carbon oil accumulation region, and the length of the cuboid region of the carbon oil region equals the width of the cuboid region of the carbon oil region. The first wire is connected with one end of the carbon oil region, and the second wire is connected with the other end of the carbon oil region. One end of the resistance testing device is connected with the first wire, and the other end of the resistance testing device is connected with the second wire. By the adoption of the testing device, the sheet resistance of the carbon oil can be tested and whether the production quality of the circuit board carbon oil meets requirements of clients or not can be confirmed. The thickness of the carbon oil can be determined according to the calculation method of R=Q/T in the carbon oil manufacturing process to avoid the phenomenon that finished carbon oil does not pass testing and is remanufactured.
Description
Technical field
The utility model relates to the wiring board field, relates in particular to a kind of device of testing in the circuit board the carbon oil sheet resistance.
Background technology
At present, the quality problem of wiring board carbon oil production technology is a problem in industry always, reach a high-quality disposable qualification rate not a duck soup, if there is time in a certain respect to do, can not get position, what will produce batch type badly causes turning over work and even scraps.
Carbon oil is mainly that synthetic resin, rigidizer and carbon dust form, wherein synthetic resin is prayed an adhesive effect, rigidizer plays the fixed line effect, carbon dust plays electric action, carbon oil in the application of wiring board with it cheap price, stable performance can reach the effect of chemical turmeric simultaneously and be favored.The sheet resistance that the client is generally carbon oil to the requirement of carbon oil is less than 50 ohm-sq, and the sheet resistance size of carbon oil is main relevant with the thickness of resistivity and carbon oil, and therefore, the sheet resistance size of monitoring carbon oil is particularly important.
Summary of the invention
The technical problem underlying that the application will solve is, provide a kind of can measurement circuit plate carbon oil sheet resistance, can monitor the device of carbon oil thickness simultaneously.
For solving the problems of the technologies described above, the technical scheme that the application proposes is: a kind of proving installation of wiring board carbon oil sheet resistance comprises a carbon oil district 1, the carbon oil aggregation zone that this carbon oil district 1 is a rectangular parallelepiped, the length in its rectangular parallelepiped zone and wide equating; The first wire 4 and the second wire 5, this first wire 4 connects an end in carbon oil district 1, and this second wire 4 connects the other end in carbon oil district 1; One resistance testing device 6, these resistance testing device 6 one ends are connected with the first wire 4, and the other end is connected with the second wire 5.
Further, a kind of proving installation of wiring board carbon oil sheet resistance also comprises that the first test interface 2 and the second test interface 3, the first test interfaces 2 are positioned at an end in carbon oil district 1, and is connected with the first wire 4, the second test interface 3 is positioned at the other end in carbon oil district 1, and is connected with the second wire 5.
Well-known, the computing formula of carbon oil sheet resistance is: R=Q/T, and the resistivity that wherein Q is carbon oil, T is carbon oil thickness.
Preferably, resistance testing device 6 is a resistance measuring instrument.
The application is with respect to prior art, and it has following advantage and beneficial effect:
(1) sheet resistance that this proving installation can the Quick Measurement carbon oil, confirm whether the production quality of wiring board carbon oil reaches client's requirement;
(2) can utilize the computing method of R=Q/T, confirm the thickness of carbon oil when carbon oil is made, avoid finished product test not do over again by going again.
The accompanying drawing explanation
Fig. 1 is the structural representation of the proving installation of a kind of wiring board carbon oil of the utility model sheet resistance.
Embodiment
Below by embodiment, by reference to the accompanying drawings the utility model is described in further detail.
Terminological interpretation: (resistance of carbon oil generally means with R=Q*L/T*A sheet resistance, wherein Q represents the resistivity of carbon oil, L represents the length of carbon oil, A represents carbon oil, T represents the thickness of carbon oil, as the length of carbon oil R=Q/T during with wide equating, resistance now is sheet resistance, has represented the resistance of long and the wide carbon oil equated).
As shown in Figure 1, the proving installation of a kind of wiring board carbon oil of the utility model sheet resistance, comprise a carbon oil district 1, the carbon oil aggregation zone that this carbon oil district 1 is a rectangular parallelepiped, the length in its rectangular parallelepiped zone and wide equating; The first wire 4 and the second wire 5, this first wire 4 connects an end in carbon oil district 1, and this second wire 4 connects the other end in carbon oil district 1; One resistance testing device 6, these resistance testing device 6 one ends are connected with the first wire 4, the other end is connected with the second wire 5, also comprise the first test interface 2 and the second test interface 3, the first test interface 2 is positioned at an end in carbon oil district 1, and be connected with the first wire 4, the second test interface 3 is positioned at the other end in carbon oil district 1, and is connected with the second wire 5.In a preferred embodiment, this resistance testing device 6 is a resistance meter, certainly, and also can multimeter in other embodiment, micro-resistance instrument or other measuring resistance instrument.
In test process, we cover carbon oil in carbon oil district 1 fully, and form and be electrically connected to the first wire 4 by the first test interface 2, by the second test interface 3, with the second wire 5, form and are electrically connected to; The length of carbon oil and the wide 1cm that is set to, utilize the electric conductivity of carbon oil, can by it and resistance meter is switched on and the resistance value that obtains this sheet resistance on resistance meter.Due to long and wide, all equate, computing formula R=Q/T according to the carbon oil sheet resistance, we reasonably are out of shape, T=Q/R, the sheet resistance value that test is obtained and resistivity are updated in this formula, can obtain its thickness T, so this test module also can be used for testing the thickness of carbon oil, and confirm the thickness of carbon oil when carbon oil is printed, avoid finished product test not do over again by going again.
The above embodiment has only expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (4)
1. the proving installation of a wiring board carbon oil sheet resistance, is characterized in that comprising,
One carbon oil district (1), the carbon oil aggregation zone that described carbon oil district (1) is a rectangular parallelepiped, the length in its rectangular parallelepiped zone and wide equating;
The first wire (4) and the second wire (5), described the first wire (4) connects an end in described carbon oil district, and described the second wire (5) connects the other end in described carbon oil district (1);
One resistance testing device (6), described resistance testing device (6) one ends are connected with described the first wire (4), and the other end is connected with described the second wire (5).
2. the proving installation of a kind of wiring board carbon oil sheet resistance as claimed in claim 1, characterized by further comprising, the first test interface (2) and the second test interface (3), described the first test interface (2) is positioned at an end in described carbon oil district (1), and be connected with described the first wire (5), described the second test interface (2) is positioned at the other end in described carbon oil district (1), and is connected with described the second wire (5).
3. the proving installation of a kind of wiring board carbon oil sheet resistance as claimed in claim 1, is characterized in that, the computing formula of the sheet resistance of described carbon oil is: R=Q/T, and the resistivity that wherein Q is carbon oil, T is carbon oil thickness.
4. the proving installation of a kind of wiring board carbon oil sheet resistance as claimed in claim 1, is characterized in that,
Described resistance testing device (6) is a resistance measuring instrument.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320537375.2U CN203385793U (en) | 2013-08-30 | 2013-08-30 | Device for testing sheet resistance of carbon oil of circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320537375.2U CN203385793U (en) | 2013-08-30 | 2013-08-30 | Device for testing sheet resistance of carbon oil of circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203385793U true CN203385793U (en) | 2014-01-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320537375.2U Expired - Fee Related CN203385793U (en) | 2013-08-30 | 2013-08-30 | Device for testing sheet resistance of carbon oil of circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203385793U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110687351A (en) * | 2019-10-11 | 2020-01-14 | 深圳市创荣发电子有限公司 | Conductive adhesive carbon particle detection jig and detection method |
-
2013
- 2013-08-30 CN CN201320537375.2U patent/CN203385793U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110687351A (en) * | 2019-10-11 | 2020-01-14 | 深圳市创荣发电子有限公司 | Conductive adhesive carbon particle detection jig and detection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140108 Termination date: 20210830 |
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| CF01 | Termination of patent right due to non-payment of annual fee |