Alkaline Etching

The alkaline etching is the first choice when etching outerlayers. To remove the exposed copper a strong alkaline ammonia-based solution is used.


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The etching modules have oscillating nozzles, which are arranged either parallel or at right angles to the conveying direction. This SCHMID achieves a uniform etch rate across the entire panel surface. A permanent monitoring of the process parameters guarantees ideal etch results.

  • Automatic adjustment of pH
  • High etching quality at high etching factor by using the Fineline spray System
  • Uniform etching pattern through intermittend etching with single nozzle control