The market demand for browned liquid is growing, and green environmental protection has become the mainstream trend of industry development.

Browning liquid, also known as browning treatment liquid, refers to a treatment liquid that improves the adhesion between the copper surface of the inner layer of the multi-layer printed circuit of the printed circuit board and the polymeric material. Browning liquid has the advantages of high copper loading, strong acid resistance, low production cost, and simple preparation, and is in high demand in the semiconductor field.

The browning process is an important step in preparing printed circuit boards. Compared with the traditional blackening process, the browning process can effectively avoid delamination and explosion of the board. It is easy to control, can ensure the cleanliness of the board surface, has low production costs and improves the quality of the finished product. Good to wait for the advantage. The main processes of the browning process include pre-soaking liquid, browning treatment, lamination, lamination, etc. The browning process can produce an organic metal layer structure on the copper surface of the printed circuit board, which protects the printed circuit board. In recent years, driven by market demand, my country’s browning process has gradually developed and matured. Browning liquid is an important material used in the browning process, and the industry has further accelerated its development.

Browning liquid is usually composed of hydrogen peroxide stabilizer, silane compounds, corrosion inhibitors, oxygen carriers, pyrrole and other compounds. Hydrogen peroxide stabilizers include ethylenediaminetetraacetic acid, thioglycolic acid, benzenesulfonic acid, sodium silicate, etc. The corresponding stabilizer can be selected according to different concentrations; silane compounds are mainly silane coupling agents, which are easy to hydrolyze. ; Corrosion inhibitors are the core component of browning liquid and play a decisive role in the adhesion of materials. They are represented by compounds such as molybdates, organic silane mixtures, and zinc sulfate.

According to the “2023-2028 Browning Liquid Industry Market In-depth Research and Investment Prospect Forecast Analysis Report released by the Industrial Research Center, Printed circuit boards (PCBs) are the largest demand side for browning liquid. Printed circuit boards are widely used in consumer electronics, computers, communication equipment, medical equipment, automobiles, aerospace, industrial control and other fields. In recent years, benefiting from national policy support and the continuous innovation of production technology by local companies, the development of my country’s printed circuit board industry has accelerated. In 2022, my country’s printed circuit board output value will reach US$39.84 billion, a year-on-year increase of 6.1%. Driven by downstream demand, browned liquid has gained broad market space.

​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​Out out of the brown liquid during the production process, it is easy to discharge a large amount of wastewater, causing pollution to the environment. Guangdong Guanghua Technology Co., Ltd., as the leading enterprise of browning liquid in my country, successfully launched 1269HC browning liquid in February 2023. This product greatly reduces wastewater emissions during the production process and has achieved mass production.

Industry analysts said that browning liquid, as an important electronic chemical used in the manufacturing process of printed circuit boards, has excellent performance. Market demand is strong. In recent years, the prosperity of my country’s printed circuit board industry has continued to increase, bringing a broad market space for browning liquid. With the deepening of the concept of green environmental protection, my country’s browning liquid production process has been continuously optimized, and the development of the industry has further accelerated. It is expected that environmentally friendly browning liquid will become a mainstream product in the market in the future.