Chemical Substance Use
The semiconductor manufacturing process uses substances and materials that pose health, safety, and environmental risks.
We are working to reduce environmental risks associated with semiconductor manufacturing. For this reason, we are focusing on reducing, substituting, and properly disposing of waste, while complying with laws and regulations and customer requirements.
Chemical Substance Management
We conduct various assessments using our chemical substance database based on our green procurement activities and the acquisition of information about related laws and regulations. In addition to accurately understanding the total volume of chemical substances used, we are managing the amount of use and emissions from a hazard standpoint and are striving to reduce both. In this way, we are conducting research and development related to green products and eco-factories. With regard to substances subject to the Japanese Pollutant Release and Transfer Register Law (PRTR; a law concerning the monitoring of emissions of specified chemical substances into the environment and their management) and VOCs, we conduct accurate balance control up to the volume handled in small quantities. The balance results are not only reported to the government but are analyzed and fed back to activities aimed at substituting chemical substances and reducing emissions.
Handling of Organic Fluorine Compounds
We use materials containing organic fluorochemicals as surfactants in the semiconductor manufacturing process. In recent years, there have been concerns about the environmental resilience, bioaccumulation, and long-distance mobility of organic fluorochemicals. As regulations have been tightened internationally through the Stockholm Convention on Persistent Organic Pollutants (POPs Convention), we are gradually switching to materials with lower environmental impact in collaboration with our technical divisions.
Compliance with Environmental Laws and Regulations
Our semiconductors can be found in many products and are used in many countries around the world. For this reason, we obtain information on laws and regulations in major countries in order to comply with environmental laws and regulations related to products, reflect this information in our products, and deploy information on the content of chemical substances to our customers in a timely manner.
Major Environmental Laws and Regulations Outside Japan and Our Responses
The European RoHS Directive and End-of-Life Vehicles (ELV) Directive (an European directive limiting content of lead, mercury, cadmium and hexavalent chromium) specify threshold values for banned substances. For this reason, we receive analytical data and reports on the non-inclusion of banned substances from our suppliers for components that make up our semiconductor products, and we confirm that they are below the thresholds by analyzing our products internally as well.
Status of our compliance with laws and regulations
Initiatives in China
China’s Administrative Measures for Restrictions on the Use of Hazardous Substances in Electric and Electronic Products, also known as the Amended China RoHS II, requires labeling of designated toxic substances on final products if they contain such substances, and requires the expiration date for environmental conservation (the expiration date for safe use). Semiconductor products are not final products of electrical and electronics products, and therefore are not marked directly. However, we provide information to our customers through sales distributors on the content information and environmental protection deadlines for each type of substance.
Initiatives in Europe
Because our semiconductor products are articles that do not intentionally release chemicals (finished products), we are not required to register under the European REACH Regulation (Note). However, we obtain information on the content of substances of very high concern (SVHC; potentially harmful to health and safety) from our supply chain and provide it to customers.
Going forward, we will continue to work to identify information related to overseas laws and regulations and respond appropriately.
Note: REACH Rules: Regulation that requires registration, evaluation, authorization, and restriction when producing/importing chemicals in/into the EU
Contributing to SDGs
Renesas’ efforts in Chemical Substance Use contributes to these Sustainable Development Goals targets:
12.4 By 2020, achieve the environmentally sound management of chemicals and all wastes throughout their life cycle, in accordance with agreed international frameworks, and significantly reduce their release to air, water and soil in order to minimize their adverse impacts on human health and the environment