Waste Management

Waste management strategy

Our sustainable waste management bases on classification and separation of waste and the use of safe disposal methods according to legal requirements.

Our waste is partly coming from production and construction activities. Despite all efforts to use resources efficiently and minimize waste generation, Infineon still produces waste that cannot be avoided. Therefore, our subsequent objective is to ensure that the remaining waste is disposed properly and efficiently by professional waste disposal companies.

Nowadays, there are several methods, technically and economically feasible, of treating waste before its final disposal. In this regard, Infineon prefers the recovery methods prior to direct disposal at landfills. Among the different recovery methods, recycling is the ecologically most effective.

For this reason, waste is collected separately wherever possible at the point where it is produced. Some materials such as solvents are recycled, either internally or externally, whenever economically and ecologically feasible, and can therefore be re-used in the production process.

Our good practices over the years

Infineon uses redestillation to successfully externally recycle the solvents propyleneglycolmonomethyletheracetate (PGMEA), cyclopentanone, N-methyl-pyrrolidone (NMP) as well as dimethyl formamide (DMF).

At the Villach (Austria) site, for the last  years reusable plastic packing which is sent back and forth between sites has been used in wafer transport, primarily for the site’s deliveries to Warstein (Germany) and Cegléd (Hungary). We saved with this approach in the fiscal year 2019 up to 70,000 cartons and up to 140,000 pieces of foam plastic. This reusable packing was developed by Infineon employees on a cross-site basis in collaboration with suppliers.

Our site in Regensburg (Germany) began delivering used cardboard boxes to an external service provider for reuse in March 2016.

The recovery of precious metals (palladium and gold) from the galvanic sludge of the Regensburg site was awarded a third place medal by the Idea Management Center of the German Institute for Idea and Innovation Management (Deutsches Institut für Ideen- und Innovationsmanagement) in Frankfurt in the “Best Sustain­ability Idea of 2016” competition.

Waste management data

In the 2019 fiscal year the total amount of waste generated was 45,083 tons, with 23,389 tons classified as non-hazardous and 21,694 tons classified as hazardous.

69.43 percent of the non-hazardous waste and 63.24 percent of the hazardous waste were sent to recycling. The percentages of the various waste management methods are illustrated in the charts below.

Waste KPI

Infineon uses “waste generated in grams per square centimeter manufactured wafer” as a KPI to show its efficiency of waste management. This KPI is defined by the World Semiconductor Council (WSC). Compared to the WSC global average, in 2018 calendar year our worldwide frontend sites generated approximately 65 percent less waste per square centimeter manufactured wafer.