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Sigma Engineering AB has over 35 years of experience within the field of closed loop recycling of etching fluids for manufacturing of Printed Circuit Boards. With over 100 systems installed on several continents, we are a global partner to our customers. We combine renown professionals from the equipment, chemistry and yield management fields, with interconnect process equipment and ecological recycling technologies. Combined with modern material technologies, we produce high quality equipment with high throughput, high reliability, low downtimes, easy to clean, corrosion proof and with low cost of ownership. By enabling Copper extraction from the etching process, our system reduces the carbon footprint as well as water consumption, while improving quality and profitability.