Electromagnetic shielding material, application and manufacturing process for electromagnetic shielding material

Abstract

The invention discloses an electromagnetic shielding material, application and a manufacturing process for the electromagnetic shielding material. The electromagnetic shielding material comprises at least one magnetic-conducting metal layer, wherein the first surfaces of the magnetic-conducting metal layers are electrochemically treated to form plated layers, and are obtained by transverse magnetic field thermal treatment. Furthermore, magnetic-conducting coatings can be coated on the second surfaces of the magnetic-conducting metal layers. The magnetic-conducting coatings are coated on the magnetic-conducting metal layers to form a composite structure capable of effectively improving magnetic conductivity within a frequency range of 30MHz to 10GHz, so that a shielding effect is improved. In addition, the magnetic-conducting metal layers can be subjected to the transverse magnetic field thermal treatment, and the magnetic conductivity of the obtained electromagnetic shielding material within 2GHz or a frequency range of 10KHz to 30MHz can be effectively improved.

Description

technical field [0001] The invention relates to the field of electromagnetic shielding materials, in particular to an electromagnetic shielding material used in electronic equipment such as a Flash memory card, an application and a manufacturing process thereof. Background technique [0002] With the increase of the storage speed of the Flash memory card, the Flash memory card has entered the era of hundreds of MHz to GHz, and it can be used in various electronic devices as the main carrying device for temporary storage and buffer storage. However, high-frequency signals radiate outward due to high-speed transmission, which often interferes with other adjacent sensitive components and generates electromagnetic interference, which will greatly affect the normal operation of electronic equipment. Therefore, it is particularly important to shield electronic devices such as Flash memory cards. [0003] For example, there are currently some technologies to solve the radiation pr...

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Problems solved by technology

[0005] In view of the deficiencies in the prior art above, the object of the present invention is to provide an electromagnetic shielding material, its application and its manufacturing process, aiming to solve the problem of the decrease of magnetic permeability and poor shielding effect of the electromagnetic shielding material of existing electronic equipment under high frequency conditions. good question

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