CN201787873U - Standard template for film checking - Google Patents
Standard template for film checking Download PDFInfo
- Publication number
- CN201787873U CN201787873U CN2010205049702U CN201020504970U CN201787873U CN 201787873 U CN201787873 U CN 201787873U CN 2010205049702 U CN2010205049702 U CN 2010205049702U CN 201020504970 U CN201020504970 U CN 201020504970U CN 201787873 U CN201787873 U CN 201787873U
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- CN
- China
- Prior art keywords
- contraposition
- film
- registration holes
- counterpoint
- annulus
- 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 - Fee Related
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Abstract
The utility model discloses a standard template for film checking, wherein a base plate is provided with at least four counterpoint holes, the number of the counterpoint holes is even, and the counterpoint holes are arranged in two rows; and four corners of a film corresponding to the base plate are respectively provided with a counterpoint disk which consists of a counterpoint round plate and a counterpoint ring which are concentric, and the diameter of the inner ring of the counterpoint ring is larger than that of the counterpoint round plate. The standard template for film checking has high detection efficiency, and is applicable to the detection on films with different sizes.
Description
Technical field
The utility model belongs to the printed wiring board technical field, relates to a kind of standard form that the film is checked that is used for.
Background technology
Printed wiring board is produced the employed film (being the egative film of using in the PCB manufacturing process) and is easy to generate harmomegathus owing to environment and each side reason, therefore before being used for production, all must the length of the film be detected, the contrast of the actual value of surveying and engineering design value, data+/-2mil with interior be qualified.Mil is an English unit, and pcb board is made the conventional unit in field, 1mil=1/1000inch, and promptly 1mil equals 1/1000 inch.Traditional detection method is to use film chi or Quadratic Finite Element to detect, but the material of film chi itself is the same with the film, and also easily harmomegathus distortion has considerable influence to measuring accuracy.And the Quadratic Finite Element measuring process is comparatively loaded down with trivial details, and efficient is not high.
The utility model content
The purpose of this utility model is to provide a kind of standard form that the film is checked that is used for, and this is used for the standard form detection efficiency height that the film is checked, and can be applicable to the detection of the different size film.
The utility model is to solve the problems of the technologies described above the technical scheme that is adopted to be:
A kind of standard form that is used for film inspection, on substrate, be provided with at least 4 registration holes, the quantity of registration holes is even number, being divided into 2 rows arranges, respectively be provided with a contraposition dish on 4 angles of the film corresponding with substrate, the contraposition dish is made up of a concentric contraposition disk and contraposition annulus, and the interior ring diameter of contraposition annulus is greater than the diameter of contraposition disk.
The big 4mil of diameter of the interior ring diameter comparison circle of position dish of described contraposition annulus.
A plurality of registration holes in each row's registration holes are equidistantly arranged.
Distance between the center of circle of the adjacent registration holes in each row's registration holes is 20mm.
Beneficial effect
It is the high TG substrate (TG refers to glassy state conversionization temperature, and the TG value is high more, and sheet material stability is high more) of 2.0mm that the utility model adopts thickness, and its dimensional stability height is difficult for the harmomegathus distortion, so its degree of accuracy height.Only need during test the registration holes on film contraposition dish and the substrate is carried out contraposition, the variation that the interior ring that does not exceed the contraposition annulus as if limit, registration holes hole then illustrates film length+/-2mil in, for qualified, otherwise be defective.Therefore test process is simply effective, has greatly improved production efficiency.Row's registration holes has been designed on long limit on the substrate simultaneously, can measure the film of different size, also provides cost savings.
Description of drawings
Fig. 1 is base plate of the present utility model and the structural representation of the film when detecting;
Fig. 2 is the structural representation of the utility model contraposition dish;
Fig. 3 is a board structure synoptic diagram of the present utility model.
Reference numeral:
The 1-substrate; The 2-registration holes; The 3-film; 4-contraposition dish; 5-contraposition disk;
6-contraposition annulus; 7-expands registration holes
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Embodiment 1:
Shown in Fig. 1-2, a kind of standard form that is used for film inspection, the registration holes 2 that to be provided with 4 diameters on substrate 1 be 125mil, respectively be provided with a contraposition dish 4 on 4 angles of the film 3 corresponding with substrate 1, totally 4 contraposition dishes, contraposition dish 4 is made up of a concentric contraposition disk 5 (diameter is 125mil) and contraposition annulus 6, the big 4mil of diameter of the interior ring diameter comparison circle of position dish 5 of described contraposition annulus 6, the outer ring diameter of contraposition annulus 6 is not done special requirement, than big 6mil of interior ring diameter and above getting final product.Distance between the center of circle of 2 adjacent registration holes 2 (by the long side direction of substrate) is 20mm.
Embodiment 2:
As shown in Figure 3, substrate is provided with 2 row's registration holes, totally 18, comprise that the distance between the center of circle of 4 registration holes 2 and 14 expansion registration holes 7 (by the long side direction of substrate) is 20mm, this substrate greater than 4 registration holes is in order to satisfy the needs of different size film detection.
According to above scheme, can check easily and fast whether the length of the film meets the requirements, and same module can be measured the film of different size.
Above content be in conjunction with concrete preferred implementation to further describing that the utility model is done, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.
Claims (4)
1. one kind is used for the standard form that the film is checked, it is characterized in that, on substrate, be provided with at least 4 registration holes, the quantity of registration holes is even number, being divided into 2 rows arranges, respectively be provided with a contraposition dish on 4 angles of the film corresponding with substrate, the contraposition dish is made up of a concentric contraposition disk and contraposition annulus, and the interior ring diameter of contraposition annulus is greater than the diameter of contraposition disk.
2. according to the said standard form that is used for film inspection of claim 1, it is characterized in that the big 4mil of diameter of the interior ring diameter comparison circle of position dish of described contraposition annulus.
3. the standard form that is used for film inspection according to claim 1 and 2 is characterized in that, a plurality of registration holes in each row's registration holes are equidistantly arranged.
4. the standard form that is used for film inspection according to claim 3 is characterized in that, the distance between the center of circle of the adjacent registration holes in each row's registration holes is 20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205049702U CN201787873U (en) | 2010-08-25 | 2010-08-25 | Standard template for film checking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205049702U CN201787873U (en) | 2010-08-25 | 2010-08-25 | Standard template for film checking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201787873U true CN201787873U (en) | 2011-04-06 |
Family
ID=43819832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205049702U Expired - Fee Related CN201787873U (en) | 2010-08-25 | 2010-08-25 | Standard template for film checking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201787873U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109348637A (en) * | 2018-10-24 | 2019-02-15 | 江门崇达电路技术有限公司 | A kind of film aligning method for preventing negative film plate circuit etching not clean |
| CN110879083A (en) * | 2019-12-17 | 2020-03-13 | 无锡市五十五度科技有限公司 | Cold plate inspection method |
-
2010
- 2010-08-25 CN CN2010205049702U patent/CN201787873U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109348637A (en) * | 2018-10-24 | 2019-02-15 | 江门崇达电路技术有限公司 | A kind of film aligning method for preventing negative film plate circuit etching not clean |
| CN110879083A (en) * | 2019-12-17 | 2020-03-13 | 无锡市五十五度科技有限公司 | Cold plate inspection method |
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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: 20110406 Termination date: 20120825 |