High-strength rigid-flexible flexible circuit board and manufacturing technology thereof

Abstract

The invention relates to the technical field of flexible circuit boards, in particular to a high-strength rigid-flexible flexible circuit board and a manufacturing technology thereof. The flexible circuit board comprises a reinforcing layer, a bonding layer, a main substrate layer, a printed circuit layer, an anti-interference layer and a silica gel protective layer in sequence from top to bottom;the reinforcing layer adheres to the surface of the main substrate layer through the bonding layer, the printed circuit layer is coated with the anti-interference layer, and the anti-interference layer is coated with the silica gel protective layer; the reinforcing layer comprises a main exhaust plate and a reinforcing strip, the reinforcing strip adheres to the main substrate layer through the bonding layer to divide the main exhaust plate into two sections, and a plurality of exhaust holes are uniformly formed in the surface of the main exhaust plate; the main exhaust plate and the exhaustholes are formed under the condition that the reinforcing layer plays a role in reinforcing the use strength so that an exhaust effect can be achieved during hot-pressing bonding, it is guaranteed that no displacement is generated during hot pressing, and in addition, the heat dissipation effect can be achieved in the using process; the use strength is high, and the heat dissipation effect is good.

Description

technical field [0001] The invention relates to the technical field of flexible circuit boards, in particular to a high-strength soft-rigid flexible circuit board and its manufacturing process. Background technique [0002] With the development of electronic equipment, especially the development trend of electronic equipment such as mobile phones and digital cameras towards lightness, thinness, shortness and smallness, the only way to reduce the volume of finished products is to reduce parts or combine parts into modules. Realization, the characteristics of the soft-rigid circuit board just meet these requirements. It can effectively use the installation space, realize three-dimensional assembly, reduce installation costs, and can replace plug-ins, and can ensure reliability in shock, humidity and other environments. It has the characteristics of flexible boards, so due to its significant advantages, it has more and more application prospects, especially in aerospace and mi...

AI Technical Summary

Problems solved by technology

[0004] At present, due to the cumbersome and complicated manufacturing process of the soft-rigid circuit board, it is difficult to improve the production quality, and it is difficult to eradicate various defects, such as: insufficient use strength, poor heat dissipation effect, and poor high temperature resistance effect need to be solved.

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