The specific process of lead frame etching machine technology

Lead frame etching machine What is the specific process of craftsmanship? Below is a brief introduction for everyone, let's learn about it together!

1. Cleaning treatment: It is to clean all kinds of stains on the surface of the rough part to be corroded, in order to ensure uniform adhesion between the anti-corrosion layer and the metal surface, and uniform etching speed. Common cleaning methods include organic solvent cleaning, alkaline chemical cleaning, acidic chemical cleaning, etc.

2. Anti corrosion treatment: The purpose is to protect surfaces that do not require anti-corrosion treatment, so that metal surfaces that require anti-corrosion treatment are exposed and corroded by corrosive agents suitable for the metal material. This process requires that the anti-corrosion material should be firmly attached to the metal surface, and the anti-corrosion layer should not fall off during the entire corrosion process. Anti corrosion treatment mainly includes: screen printing anti-corrosion technology, pattern electroplating anti-corrosion technology, laser lithography anti-corrosion technology, photochemical anti-corrosion technology, etching anti-corrosion layer technology, and transfer printing anti-corrosion technology.

3. Corrosion processing: It is the process of corroding metal parts according to the requirements of the drawing, producing good anti-corrosion graphics, placing them in a corrosion tank, and performing corrosion processing. During this process, the main controls include: concentration of corrosive agent, corrosion temperature, etching time, etc. According to the drawing requirements, it can be divided into overall corrosion, selective corrosion, multi-step corrosion, taper corrosion, and chemical cutting and cutting.

4. Remove the anti-corrosion layer: After the corrosion of the parts is qualified, use solvents, alkaline solutions, or other cleaning agents to remove the anti-corrosion layer on the surface of the parts.

The above is the specific process of the etching machine process introduced by the lead frame etching machine manufacturer. We hope that after reading it, you can have a further understanding of it.