A kind of electromagnetic wave shielding film material and preparation method thereof

A shielding film and electromagnetic wave technology, applied in the fields of magnetic/electric field shielding, electrical components, conductive adhesives, etc., can solve problems such as difficulty in maintaining the shielding function and easy breakage of the film, and achieve excellent electromagnetic wave shielding performance and excellent bonding performance Effect
CN108718518BActive Publication Date: 2020-02-07SHENZHEN LICHANGSHI ADHESIVE PROD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
SHENZHEN LICHANGSHI ADHESIVE PROD
Publication Date
2020-02-07

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Abstract

The invention provides an electromagnetic wave shielding film material, which is characterized in that a layer of frosted black resin of 5-6 microns is coated on one surface of copper foil, and an anisotropic conductive adhesive layer of 10-12 microns is coated on the other surface; a PET protective layer is added on the outer layer of the frosted black resin; and a layer of PET release film is added on the outer layer of the anisotropic conductive adhesive layer. The invention provides an electromagnetic wave shielding film material and a preparation method thereof; the light shielding property and the excellent electromagnetic wave shielding performance are achieved; and the ultra-thin structure of the material and the excellent bonding performance with various substrates are realized.
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Description

technical field

[0001] The invention relates to an electromagnetic wave shielding film material and a preparation method thereof. Background technique

[0002] In recent years, electromagnetic wave interference (EMI) has been increasing along with the increase in the use of various electrical equipment or electronic equipment. In addition to being the cause of malfunction or interference of electronic and electrical equipment, EMI has also been blamed for causing damage to the health of operators of these equipment. Therefore, the intensity of electromagnetic waves emitted by electronic and electrical equipment is required to be controlled within the range specified by standards or regulations.

[0003] In the work against EMI, it is necessary to shield electromagnetic waves. For this purpose, it is self-evident that the property that electromagnetic waves do not pass through metal can be utilized. For example, a method in which a frame is made of metal or a high-conducti...

Claims

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