Medium micro-etch

1. After micro-etching, a uniform copper surface can be obtained, appearing bright white.
2. It causes no environmental pollution, and wastewater treatment is simple.
3. The solubility of copper salt in the hydrogen peroxide/sulfuric acid stabilizer is significantly higher than that in persulfates, reaching up to 35 g/L.
4. It exhibits a good and stable micro-etching rate without damaging fine circuits.
5. On-site operation is simple, and the bath solution is easy to analyze and control.
6. The board surface does not oxidize after micro-etching and can be stored for a long time.

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