CN211079003U - Covering film - Google Patents
Covering film Download PDFInfo
- Publication number
- CN211079003U CN211079003U CN201921792652.8U CN201921792652U CN211079003U CN 211079003 U CN211079003 U CN 211079003U CN 201921792652 U CN201921792652 U CN 201921792652U CN 211079003 U CN211079003 U CN 211079003U
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- rete
- glue film
- thickness
- membrane
- film
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Abstract
The utility model relates to a cover membrane for FPC, it includes fixed connection's in proper order white oil glue film, the PI rete, the AD glue film with from the type rete, the AD glue film splice the PI rete with from the type rete, the thickness of PI rete is 12.5um or 25um or 50um, the thickness from the type rete is 25um or 38um or 120um or 130um, the white oil glue film is 15um or 20um or 25um or 35um with the thickness of AD glue film. Through covering the membrane setting including fixed connection's white oil glue film, PI rete, AD glue film in proper order and leaving the type rete, simplify the structure of two-sided flexible copper-clad plate, reduce the weight that covers the membrane, reduce the thickness that covers the membrane, reduce the volume that covers the membrane.
Description
Technical Field
The utility model belongs to the technical field of the flexible copper-clad plate, specifically a cover membrane for FPC.
Background
Currently, a coverlay film is often used in the production of a Flexible Printed Circuit (FPC). The cover film has extremely excellent comprehensive performance, has outstanding portability, good flexibility and the characteristic of preparing a Flexible Printed Circuit (FPC) in a large area by a printed circuit process, and is widely applied to various electronic products. However, the existing covering film has a complex structure and high production cost.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims at providing a simplify cover membrane of structure.
For realizing foretell main objective, the utility model provides a cover membrane for FPC includes fixed connection's white oil glue layer in proper order, the PI rete, the AD glue layer with leave the type rete, the AD glue layer splice the PI rete with leave the type rete, the thickness of PI rete is 12.5um or 25um or 50um, the thickness from the type rete is 25um or 38um or 120um or 130um, the white oil glue layer is 15um or 20um or 25um or 35um with the thickness of AD glue layer.
According to the scheme, the covering film is provided with the white oil adhesive layer, the PI film layer, the AD adhesive layer and the release film layer which are sequentially and fixedly connected, so that the structure of the double-sided flexible copper-clad plate is simplified, the weight of the covering film is reduced, the thickness of the covering film is reduced, and the volume of the covering film is reduced.
Drawings
The invention is further described with the aid of the accompanying drawings, in which, however, the embodiments do not constitute any limitation to the invention, and for those skilled in the art, other drawings may be obtained without inventive effort from the following drawings.
Fig. 1 is a schematic structural view of an embodiment of a cover film of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
Referring to fig. 1, the coverlay 100 for FPC that this embodiment provided includes in proper order fixed connection's white oil glue layer, the PI rete, the AD glue layer with leave the type rete, the glued joint PI rete of AD glue layer with leave the type rete, the thickness of PI rete is 12.5um or 25um or 50um, the thickness of leaving the type rete is 25um or 38um or 120um or 130um, the white oil glue layer is 15um or 20um or 25um or 35um with the thickness of AD glue layer.
The AD glue film is epoxy resin, or, the AD glue film is acrylic resin. The release film layer can be a release film made of at least one of polypropylene, biaxially oriented polypropylene and polyethylene terephthalate, or a release film with double-sided release capability or release paper.
Through covering the membrane setting including fixed connection's white oil glue film, PI rete, AD glue film in proper order and leaving the type rete, simplify the structure of two-sided flexible copper-clad plate, reduce the weight that covers the membrane, reduce the thickness that covers the membrane, reduce the volume that covers the membrane.
Finally, it should be emphasized that the present invention is not limited to the above-described embodiments, but only to the preferred embodiments of the invention, and is not limited to the embodiments, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included within the scope of the present invention.
Claims (3)
1. A cover film for FPC is characterized in that:
cover membrane layer, PI rete, AD glue film and release the rete including fixed connection's white oil glue film, PI rete in proper order, the AD glue film is glued the PI rete with release the rete, the thickness of PI rete is 12.5um or 25um or 50um, the thickness from the rete is 25um or 38um or 120um or 130um, the white oil glue film with the thickness of AD glue film is 15um or 20um or 25um or 35 um.
2. The coverfilm of claim 1, wherein:
the AD glue layer is epoxy resin.
3. The coverfilm of claim 1, wherein:
the AD glue film is made of acrylic resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921792652.8U CN211079003U (en) | 2019-10-23 | 2019-10-23 | Covering film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921792652.8U CN211079003U (en) | 2019-10-23 | 2019-10-23 | Covering film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211079003U true CN211079003U (en) | 2020-07-24 |
Family
ID=71639434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921792652.8U Active CN211079003U (en) | 2019-10-23 | 2019-10-23 | Covering film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211079003U (en) |
-
2019
- 2019-10-23 CN CN201921792652.8U patent/CN211079003U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |