Method for manufacturing gray copper-clad plate

Abstract

The invention discloses a mode for manufacturing a gray copper-clad plate. The mode includes the steps of preparing lining rubber liquid, preparing surface rubber liquid, carrying out overlapping and carrying out pressing. According to the performance of the gray copper-clad plate manufactured according to the formula, color decaying is low, and the service life can be prolonged by one time; heat resistance reaches 65S-90S, wherein detection is carried out in a tin immersing mode at the temperature of 288 DEG C according to an IPC-TM-650-2.4.8 standard; heat resistance is excellent; the peel strength of HOZ copper foil is improved to 1.0 N / mm to 1.5 N / mm, the peel strength of 1OZ copper foil commonly ranges from 1.5 N / mm to 2.5 N / mm, and detection is carried out according to an IPC-TM-650-2.4.8 standard; flame resistance reaches V-0 (a UL94 standard), and plate cost is optimized; the content of fillers such as aluminum hydroxide and silicon dioxide in the prepared surface rubber liquid is quite high, and the cost of the fillers is low; the integrated cost of the novel formula is twice that of common FR-4, but the selling price of the plate is 2.5 times that of the common FR-4, and product benefits are greatly increased.

Description

technical field [0001] The invention relates to a manufacturing method of a gray copper clad laminate. Background technique [0002] With the continuous vigorous development of the copper clad laminate industry, a large number of high-level multi-layer boards have emerged, and the living space of some low-end products is getting smaller and smaller. Some low-end products put reducing production costs and improving product life. The first line, through research, found that adding a black additive to the filler sheet used in the market can prolong the life of the sheet and prevent conduction and color fading. Contents of the invention [0003] The purpose of the present invention is to solve the problems in the prior art that the amount of black additive added is too small, the amount of native filler in the board is too large, the color difference of the board is not suitable for control, the appearance of the material is not beautiful, it is not suitable for large-scale ex...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems in the prior art that the amount of black additive added is too small, the amount of native filler in the board is too large, the color difference of the board is not suitable for control, the appearance of the material is not beautiful, it is not suitable for large-scale exposed low-end products, and the market share is greatly reduced.