CN206350297U - A kind of electromagnetic shielding film easy to use - Google Patents

Abstract

The utility model discloses a kind of electromagnetic shielding film easy to use, including：Screen layer, screen layer is formed at the metal level of the upper surface of carrier film including carrier film, through vacuum sputtering and is coated on the conductive adhesive layer of the upper surface of metal level；The upper surface of conductive adhesive layer is fitted with diaphragm；Carrier film is Kapton.Carrier film need not be torn off during using the electromagnetic shielding film, using more convenient.

Description

A convenient electromagnetic shielding film

technical field

The utility model relates to the field of electromagnetic shielding films, in particular to an electromagnetic shielding film which is easy to use.

Background technique

At present, the structure of electromagnetic shielding film for flexible printed circuit board (FPC board: hereinafter referred to as FPC board) is shown in Figure 1, including carrier film 3, ink insulating layer 4, metal plating layer 5, conductive adhesive layer arranged in sequence 6 and protective film 7. However, during use, the protective film 7 is torn off and the carrier film 3 needs to be torn off after the conductive adhesive layer 6 is attached to the FPC board. It is difficult to tear off the carrier film 3 and is inconvenient to use.

Utility model content

The purpose of the utility model is to provide an electromagnetic shielding film that is easy to use, without tearing off the carrier film, and is relatively convenient to use.

For this purpose, the utility model adopts the following technical solutions:

An easy-to-use electromagnetic shielding film, comprising: a shielding layer, the shielding layer comprising a carrier film, a metal layer formed on the upper surface of the carrier film by vacuum sputtering, and a metal layer coated on the upper surface of the metal layer The conductive adhesive layer; the upper surface of the conductive adhesive layer is pasted with a protective film; the carrier film is a polyimide film.

Further, the polyimide film has a thickness of 9 μm˜12 μm.

Further, the metal layer is one or a mixture of silver, copper, aluminum and nickel; the thickness of the metal layer is 0.1 μm-0.3 μm.

Further, the thickness of the conductive adhesive layer is 7 μm˜12 μm.

The beneficial effects of the utility model are: a convenient electromagnetic shielding film proposed by the utility model includes a shielding layer, and the shielding layer includes a carrier film, a metal layer formed on the upper surface of the carrier film by vacuum sputtering, and coating A conductive adhesive layer on the upper surface of the metal layer; a protective film is pasted on the upper surface of the conductive adhesive layer; wherein, the carrier film is a polyimide film. When in use, after bonding with the FPC board, there is no need to tear off the carrier film, which is more convenient to use.

Description of drawings

Fig. 1 is the structural representation of existing electromagnetic shielding film;

Fig. 2 is a structural schematic diagram of the electromagnetic shielding film of the present invention.

In the figure: 1-shielding layer; 11, 3-carrier film; 12-metal layer; 13, 6-conductive adhesive layer; 2, 7-protective film; 4-ink insulating layer; 5-metal coating.

detailed description

The technical scheme of the utility model will be further described below in conjunction with the accompanying drawings and through specific embodiments.

As shown in Figure 2, a kind of easy-to-use electromagnetic shielding film comprises: shielding layer 1, and shielding layer 1 comprises carrier film 11, the metal layer 12 that is formed on the upper surface of carrier film 11 through vacuum sputtering, and is coated on The conductive adhesive layer 13 on the upper surface of the metal layer 12; the upper surface of the conductive adhesive layer 13 is pasted with the protective film 2; the carrier film 11 is a polyimide film.

In the above electromagnetic shielding film, the polyimide film has a thickness of 9 μm to 12 μm.

In the above electromagnetic shielding film, the metal layer 12 is one or a mixture of silver, copper, aluminum and nickel; the thickness of the metal layer 12 is 0.1 μm˜0.3 μm.

In the above electromagnetic shielding film, the thickness of the conductive adhesive layer 13 is 7 μm˜12 μm.

The utility model proposes an easy-to-use electromagnetic shielding film. When in use, the protective film 2 is torn off first, and then the conductive adhesive layer 13 of the electromagnetic shielding film can be bonded to the FPC board without tearing off the carrier film 11. It is more convenient to use.

The technical principles of the present utility model have been described above in conjunction with specific embodiments. These descriptions are only for explaining the principle of the utility model, and cannot be construed as limiting the protection scope of the utility model in any way. Based on the explanations herein, those skilled in the art can think of other specific implementations of the present utility model without creative work, and these forms will all fall within the protection scope of the present utility model.

Claims (4)

1. An easy-to-use electromagnetic shielding film, is characterized in that, comprises: shielding layer (1), and described shielding layer (1) comprises carrier film (11), is formed on described carrier film (11) through vacuum sputtering The metal layer (12) on the upper surface of the metal layer (12), and the conductive adhesive layer (13) coated on the upper surface of the metal layer (12); the upper surface of the conductive adhesive layer (13) is pasted with a protective film (2 ); The carrier film (11) is a polyimide film. 2 . The convenient electromagnetic shielding film according to claim 1 , wherein the polyimide film has a thickness of 9 μm˜12 μm. 3 . 3. A kind of easy-to-use electromagnetic shielding film according to claim 1, is characterized in that, described metal layer (12) is the mixing of one or more in silver, copper, aluminum, nickel; The thickness of the layer (12) is 0.1 μm to 0.3 μm. 4. A convenient electromagnetic shielding film according to claim 1, characterized in that the thickness of the conductive adhesive layer (13) is 7 μm˜12 μm.