Copper surface roughening treatment solution and treatment method thereof

Abstract

The invention discloses a copper surface roughening treatment solution, which comprises the following components: 98wt% of H2SO4 50 to 150g / L, volume concentration 30% of H2O2 40 to 60ml / L, a silane coupling agent 0.5 to 5g / L, dissolvable zinc salt 8 to 12g / L, a stabilizer 50 to 150g / L, a corrosion inhibitor composition 0.5 to 7.5g / L, and deionized water residual. Through treatment of the copper surface roughening treatment solution, a layer of dense and uniform honeycomb structure is formed on the copper surface, the structure can increase the specific surface area combined with semi-curing resin, and during a laminating process, a crosslinking reaction for resin curing is involved, a chemical bond is formed, and the binding force with the semi-curing resin is further enhanced.

Description

technical field [0001] The invention relates to the technical field of surface treatment, in particular to a copper surface roughening treatment liquid and a treatment method thereof. Background technique [0002] my country has become the world's largest producer and consumer of printed circuit boards. The printed circuit industry has gradually grown from a small one, and the entire industrial chain has become more complete. Products have also moved from low-end to mid-end and high-end. develop. The production of mid-end and high-end printed circuit boards not only requires printed circuit board manufacturers to invest a lot of R&D and engineering personnel, but also requires the cooperation of upstream equipment and raw material manufacturers. In the early stage of development of the printed circuit industry, Hong Kong and Taiwan manufacturers gradually introduced advanced technologies from Europe, the United States, Japan and other countries into the country. Equipment de...

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Problems solved by technology

In the early stage of development of the printed circuit industry, Hong Kong and Taiwan manufacturers gradually introduced advanced technologies from Europe, the United States, Japan and other countries into the country. Equipment design, equipment production and PCB raw material technology are all in the hands of some foreign high-tech companies. Domestic manufacturers Using these imported equipment, raw materials and technologies, the production cost is high and the profitability is insufficient

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