CN202841685U - Protection film used for flexible printed circuit board - Google Patents
Protection film used for flexible printed circuit board Download PDFInfo
- Publication number
- CN202841685U CN202841685U CN 201220424940 CN201220424940U CN202841685U CN 202841685 U CN202841685 U CN 202841685U CN 201220424940 CN201220424940 CN 201220424940 CN 201220424940 U CN201220424940 U CN 201220424940U CN 202841685 U CN202841685 U CN 202841685U
- Authority
- CN
- China
- Prior art keywords
- circuit board
- printed circuit
- protection film
- flexible printed
- film used
- 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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- Non-Metallic Protective Coatings For Printed Circuits (AREA)
Abstract
The utility model discloses a protection film used for a flexible printed circuit board comprising a release paper layer, a surface of which is provided with a bonding layer. The release paper layer is connected with an insulation film layer by the bonding layer. The protection film used for the flexible printed circuit board is advantageous in that firstly, the heat resistant performance and the corrosion resistant performance of the protection film of the printed circuit board are strong; secondly, the bonding force is strong.
Description
Technical field
The utility model relates to a kind of flexible PCB diaphragm.
Background technology
At present, traditional flexible PCB is poor with the diaphragm heat-resisting quantity, corrosion resistance is also poor simultaneously, and adhesion strength is not strong.
The utility model content
Technical problem to be solved in the utility model is for the deficiencies in the prior art, to provide a kind of high temperature resistant, corrosion resistant flexible PCB diaphragm.
For solving the problems of the technologies described above; the technical solution of the utility model is: a kind of flexible PCB diaphragm; it is characterized in that: comprise off-style paper layer, described off-style paper layer surface is provided with adhesion coating, and described off-style paper layer is connected with insulating film layer by this adhesion coating.
Described insulating film layer is polyimide film.
The utility model adopts said structure, and have the following advantages: 1, this diaphragm is high temperature resistant, corrosion resistance is strong; 2, adhesion strength is strong.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail;
Fig. 1 is structural representation of the present utility model;
In Fig. 1,1, off-style paper layer; 2, adhesion coating; 3, insulating film layer.
Embodiment
A kind of flexible PCB diaphragm comprises off-style paper layer 1 as shown in Figure 1, and off-style paper layer 1 surface is provided with adhesion coating 2, and off-style paper layer 1 is connected with insulating film layer 3 by this adhesion coating 2, and adhesion coating adopts thermosetting epoxy resin.
The above has carried out exemplary description to the utility model by reference to the accompanying drawings; obviously the utility model specific implementation is not subjected to the restriction of aforesaid way; as long as the various improvement of having adopted method design of the present utility model and technical scheme to carry out; or directly apply to other occasion without improvement, all within protection range of the present utility model.
Claims (2)
1. flexible PCB diaphragm, it is characterized in that: comprise off-style paper layer (1), described off-style paper layer (1) surface is provided with adhesion coating (2), and described off-style paper layer (1) is connected with insulating film layer (3) by this adhesion coating (2).
2. a kind of flexible PCB diaphragm according to claim 1, it is characterized in that: described insulating film layer (3) is polyimide film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220424940 CN202841685U (en) | 2012-08-24 | 2012-08-24 | Protection film used for flexible printed circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220424940 CN202841685U (en) | 2012-08-24 | 2012-08-24 | Protection film used for flexible printed circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202841685U true CN202841685U (en) | 2013-03-27 |
Family
ID=47953270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220424940 Expired - Fee Related CN202841685U (en) | 2012-08-24 | 2012-08-24 | Protection film used for flexible printed circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202841685U (en) |
-
2012
- 2012-08-24 CN CN 201220424940 patent/CN202841685U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20180824 |