In alkaline etching using recirculation technology, chemicals and gases are fed back to the process in a regeneration procedure and the etched copper is recycled.
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- Reduced operation costs due to closed loop system with minimized consumption
- Stabilized etching rate of approx. 40µm/min (+/- 5µm/min guaranteed depending on the configuration of the machine)
- Consistent etching speed due to precise parameter control which leads to reduced defect rates
- No need for transportation of hazardous waste etching solution
- On-site recovery of the copper with a purity grade of over 99.5%
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