Conductive heat-conducting foam adhesive tape and production method thereof

Abstract

The invention provides a conductive heat-conducting foam adhesive tape and a production method thereof. The conductive heat-conducting foam adhesive tape comprises a frame structure, wherein the framestructure possesses a plurality of uniformly distributed square through holes, a conductive adhesive layer containing conductive heat-conducting particles as well as foam are sequentially arranged from bottom to top in each square through hole, release paper bonded with the conductive adhesive layer is arranged on the bottom surface of each square through hole, a conductive heat-conducting ink layer is attached on the foam, and the top surface of the conductive heat-conducting ink layer is flushed with the top surface of the corresponding square through hole. The conductive heat-conducting foam adhesive tape has the advantages that periphery protection can be carried out on the conductive adhesive layers and the foam by virtue of the frame structure, the conductive heat-conducting foam adhesive tape can be cut into a plurality of conductive heat-conducting foam adhesive tape small pieces along the edges of the square through holes while cutting, and the cutting is mainly specific to the frame structure in the process, so that the problem that stripping or heat conduction efficacy between structural layers is reduced due to the cutting is avoided.

Description

technical field [0001] The invention relates to the field of conductive and heat-conducting foam tapes, in particular to a conductive and heat-conducting foam tape and a manufacturing method thereof. Background technique [0002] With the rapid increase of chip processing speed, electromagnetic compatibility problems such as electromagnetic radiation are becoming more and more serious. Materials such as conductive rubber and conductive foam are widely used in electronic systems to achieve electromagnetic shielding, such as in TVs, LCD monitors, LCD TVs, A layer of conductive foam is pasted on some electronic components inside mobile phones, notebooks, MP3, communication cabinets and medical instruments, so as to have the effect of conduction, anti-static and cushioning and shock resistance. This kind of conductive foam needs to have good softness , low impedance and good thermal conductivity. [0003] The traditional conductive foam tape is to cover the entire surface of th...

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Problems solved by technology

[0003] The traditional conductive foam tape is to cover the entire surface of the foam with a conductive and heat-conducting layer (for example, a metal coating such as nickel or a graphite layer is plated on the surface of the foam by vacuum plating). Chinese patent 201520681192.7 discloses a conductive foam Cotton, the conductive foam adopts a structure in which the surface of the foam body is covered with a layer of conductive graphite layer. Although it can play the role of conduction, anti-static and cushioning and shock resistance, it has at least the following defects: 1) The finished tape is directly The graphite layer is coated on the surface of the foam. Due to the high compressibility of the foam, the graphite layer may crack or even peel off when the foam is greatly compressed during slitting; 2) Even if the slitting is successfully completed, the electrical conductivity of the slit tape And the heat conduction effect is also reduced; 3) The accuracy of cutting needs to be guaranteed by measuring tools and cutting mechanisms

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