Selection of etching method

How to choose the etching method? According to the contact form between the workpiece and the solution, there are mainly two methods for metal etching, namely spray type and immersion type. There are two principles for choosing the etching method, together with the lead frame Etching machine Let's get to know the manufacturer!

1. Production volume: Spray etching has high efficiency, fast speed, and high precision, suitable for certain batch production, but requires large equipment investment and is not suitable for etching opposite and large workpieces. Immersion etching equipment requires small investment, is easy to etch, and has a wide range of applicable workpieces, but is not suitable for large-scale production. At the same time, immersion etching has slower speed and relatively lower efficiency than spray etching, and the production process is not easy to achieve automated control.

2. Workpiece shape and size: Large workpieces are difficult to spray etch due to equipment limitations, while immersion type workpieces are not affected by workpiece size. The shape of the workpiece is complex, and there may be some parts that cannot be sprayed during spraying, which affects the normal progress of etching. However, the immersion type involves immersing the entire workpiece in the etching solution. As long as the dynamics between the etching solution and the workpiece are maintained, it can ensure that all parts of the opposite sex workpiece can be filled with etching solution, and continuous replacement of new and old solutions can be carried out, so that etching can proceed normally.

For workpieces with small or nearly flat surfaces, if conditions permit, spray etching is more efficient and accurate than immersion etching. Therefore, for flat workpieces with large batch sizes, moderate workpiece sizes, and simple shapes, it is recommended to choose spray type; If the shape of the workpiece is relatively large and it is difficult to use an etching machine, and the shape of the workpiece is complex and the batch size is not large, it is recommended to use immersion type.

The above is the complete content of the etching method selection shared by the lead frame etching machine manufacturer. We hope it can be helpful to you.