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THE CRUCIAL ROLE OF SEMICONDUCTORS IN THE TRANSITION TOWARDS A GREENER WORLD

Introduction

The global semiconductor market is projected to double by 2030, reaching over 1 trillion euros from 550 billion euros, due to the rise in data, AI, and connectivity. However, rapid growth leads to environmental issues such as high raw material use, chemical emissions, and energy consumption. Sustainable strategies mandate that semiconductor players integrate environmental factors into design phases to meet stakeholder expectations.

Key Challenges and Environmental Impacts

• Energy Consumption: Electricity is the primary energy source in semiconductor manufacturing, accounting for nearly 80% of GHG emissions from scopes 1 and 2. By 2030, electricity consumption is expected to increase up to 3.5 times, contributing 2.5% of global electricity demand post-2020.
• Water Usage: Water, often in ultrapure form, is the second critical raw material. Its demand could rise 2.3 times by 2030 due to intensive purification processes.
• Process Gases and Materials: The use of process gases leads to significant environmental pollution. Metals like cobalt and lithium need sustainable sourcing to avoid conflict minerals and reduce carbon footprints.

Solutions and Initiatives

• Energy Optimization: Strategies include improving tool efficiency (e.g., advanced etching and lithography), implementing renewable energy sourcing via PPAs or private suppliers, using AI and IoT for predictive maintenance to reduce machine downtime by half and improve efficiency by 5-20%, and adopting renewable energy sources like solar and fuel cells.
• Water and Gas Management: Develop water recycling programs combined with environmentally friendly chemicals. Capture and recycle process gases to reduce emissions, along with better traceability of materials like silicon and germanium.
• Collaborative Approaches: Enhance transparency and partnerships across supply chains for lifecycle analysis. Promote circular economy practices for electronic waste reduction, including reusing or recycling silicon-based components to minimize end-of-life environmental impact.
• Industry Examples: Companies are setting ambitious targets:
  • Qualcomm aims for net-zero operations by 2040.
  • STMicroelectronics targets 100% renewable energy by 2027 and sustainable mineral sourcing.
  • NXP plans to achieve 100% sustainable mineral sourcing, excluding conflict zones.
  • Collaborative projects like Intel and Nvidia's energy-efficient AI servers reduce energy and time-to-market, while Soitec and STMicroelectronics' silicon carbide technology enables higher-performance, energy-efficient semiconductors.

Conclusion

The semiconductor industry's transition to greener operations requires integrating sustainability into manufacturing processes and business models. By focusing on energy efficiency, responsible resource use, and cross-industry collaboration, companies can balance growth with environmental goals. This shift supports broader ecological sustainability and paves the way for a more sustainable global economy.