The etching process allows fine structures to be created by removing material in thin sheets or metal foils without the application of external force. The spray etching process is an effective alternative to punching and laser technology. Today, it is used in circuit board manufacturing and has also become prevalent in the production of flat moldings. A particular advantage of spray etching is the fast implementation of templates to real workpieces. Instead of costly and time-consuming cutting tools, spray etching makes use of relatively affordable photomasks that can be produced quickly. They are manufactured using modern photo-technical processes. Computer-aided film production using CAD/DTP creates pilot series or series with low to medium quantities in a very short space of time. The advantages of spray etching are wide-ranging.
The following are particularly significant:
- Short timespan between design and part production
- Manufacturability of complex structures
- Low initial and tools costs
- No feathering on the edges of the workpieces