Copper printed circuit board cleaning agent and preparation method thereof

Abstract

The invention relates to a copper printed circuit board cleaning agent prepared from the raw materials of, by weight: 1-2 parts of copper sulfate, 2-3 parts of sodium carbonate, parts of 1-2 sodium gluconate, 2-4 parts of citric acid, 30-35 parts of acetone, 1-2 parts of sodium dodecyl benzenesulfonate, 3-4 parts of coconut oleic acid monoethanolamide, 3-4 parts of dioctyl sodium sulfosuccinate, 4-5 parts of an auxiliary agent, and 100-120 parts of deionized water. The cleaning agent adopts various surfactants such as anionic surfactants and nonionic surfactants, and is an emulsion formed with water. The cleaning agent has excellent dissolving capacity upon rosin and organic compounds, and has good cleaning effect. Copper sulfate is adopted, and a protective effect is provided for a circuit board. With the cleaning agent, the circuit board is prevented from being corroded. The water-emulsion cleaning agent has the advantages of low cost, environment friendliness, no pollution, and direct discharge. With the auxiliary agent, a protective film can be formed on the surface of the circuit board, such that air is isolated, and the circuit board is prevented from being corroded by water and other molecules in the atmosphere. With the cleaning agent, oxidation and short-circuit can be prevented, and the next step of manufacturing process can be conveniently carried out.

Description

technical field [0001] The invention relates to the field of cleaning agents, in particular to a cleaning agent for copper printed circuit boards and a preparation method thereof. Background technique [0002] With the rapid development of integrated circuits, the volume of circuit boards is getting smaller and smaller, and electronic components are getting smaller and denser. If the dirt and dust inside are not cleaned during the production process, it may cause problems such as short circuit and corrosion, which will affect the normal operation of the circuit board. At present, most circuit board cleaners are made of organic substances, which have good cleaning effect and are not easy to cause problems such as short circuit and corrosion. However, organic compounds are not only expensive, but also pollute the environment, destroy the ozone layer, and are harmful to human health. There are also a few water-based cleaning agents, but the cleaning effect is limited and there...

AI Technical Summary

Problems solved by technology

If the dirt and dust inside are not cleaned during the production process, it may cause problems such as short circuit and corrosion, which will affect the normal operation of the circuit board

At present, most circuit board cleaners are made of organic substances, which have good cleaning effect and are not easy to cause problems such as short circuit and corrosion. However, organic compounds are not only costly, but also pollute the environment, destroy the ozone layer, and are harmful to human health.

There are also a few water-based cleaning agents, but the cleaning effect is limited, and there are safety risks. Further improvement of the formula and process is required to achieve the goals of thorough cleaning, no pollution, little corrosion, health, circuit safety, and cost reduction