Rising demand from AI, electric vehicles and connected devices is putting the semiconductor
industry under pressure to operate sustainably. Modern fabs and data centres consume vast
amounts of energy and water, making energy efficiency, advanced cooling and innovative
materials such as silicon carbide and gallium nitride essential. Alongside smarter operations,
responsible supply chains and reshoring efforts are helping chipmakers reduce environmental
impact while maintaining competitiveness.
Why sustainability in semiconductor manufacturing matters now
The semiconductor industry is facing growing scrutiny as demand from artificial intelligence, the
internet of things, and electric vehicles continues to rise. New fabs and increasingly dense chip
designs consume vast amounts of power and water, raising concerns about their environmental
footprint. Governments, investors, and customers alike are expecting sustainable practices,
making energy efficiency, advanced cooling, novel materials, and resilient supply chains more
important than ever. HCL Tech and Jama Software both identify sustainability as a defining
challenge for the industry.
While efficiency improvements form the foundation of greener manufacturing, the focus does
not stop there. Attention is now shifting to materials and technologies that allow chips to
perform better while reducing energy losses, ensuring that the next generation of
semiconductors can meet rising demands sustainably.
Energy efficiency in chip manufacturing
Modern fabs and the data centres support demand enormous amounts of energy. Without
intervention, emissions would continue to rise. Smarter operations, however, are helping
change this. AI-driven predictive maintenance and process optimisation are already cutting
waste and reducing energy intensity per wafer.
Given the fierce competition in the industry, it is hardly surprising that chip manufacturers and
foundries have invested in achieving energy-efficient solutions, sometimes in collaboration with
"green" non-governmental organisations.
Power demands of next generation fabs and data centres
Next-generation semiconductor fabs and data centres use enormous amounts of energy due to
advanced tools and tightly controlled cleanrooms. Companies like TSMC are turning to
renewable energy while Google and Microsoft adopt innovative cooling and
efficiency measures. These efforts reduce environmental impact and ensure fabs and data
centres can meet the growing demands of AI and advanced technologies.
How AI driven smart manufacturing reduces wastage
AI-driven smart manufacturing predicts equipment failures, reduces downtime and rework, and
optimises production and energy use. It also supports the use of efficient materials and
processes, cutting waste and lowering environmental impact.
Novel materials SiC and GaN
Silicon carbide (SiC) and gallium nitride (GaN) are redefining power electronics. Both offer
higher efficiency and lower conversion losses than silicon, helping to reduce energy use across
industries. These wide-bandgap semiconductors are central to the transition towards cleaner
technologies.
Source: Secondary Information and Report Prime Research Team; 2024
Applications in EVs and renewable energy systems
SiC is widely used in electric vehicle inverters and fast chargers where thermal robustness is
essential. GaN is gaining traction in high frequency, medium voltage devices that demand
compact, efficient designs. These materials are improving efficiency in both automotive and
renewable energy ecosystems.
Yet, as chips deliver more power in smaller footprints, they generate greater heat. This brings us
to the next frontier: advanced cooling solutions.
Cooling solutions for high performance chips
Heat is a growing barrier to performance and sustainability. Traditional air cooling cannot
handle the thermal output of high-performance processors, leading manufacturers to explore
liquid and immersion cooling.
Liquid cooling and microfluidics
By extracting heat closer to the source, liquid immersion and microchannel cooling allow higher
performance with lower fan energy. These solutions are already visible in hyperscale AI data
centres, as noted by Reuters.
As cooling systems evolve, sustainability considerations extend beyond fab walls into global
supply chains.
Sustainable supply chains
Sustainability is no longer limited to on-site operations. Chipmakers are diversifying sourcing,
investing in low-carbon logistics and collaborating on recycling programmes. Policies such as
the US CHIPS Act subsidies with environmental accountability.
The first half of 2024 has seen remarkable progress in sustainable semiconductor
manufacturing. As environmental regulations tighten and investors demand cleaner practices,
chip manufacturers are embracing innovative solutions to reduce their environmental impact.
This shift demonstrates that sustainability is no longer optional but essential for competitive
advantage in modern chip production.
Policy and reshoring for resilience and lower carbon
Reshoring initiatives require careful environmental assessments and community engagement to
ensure sustainable and locally supported practices. The U.S. Department of Energy's Pathways
Analysis Summary highlights the importance of considering both environmental and social
impacts when modernising industrial facilities, including semiconductor fabs.
While reshoring can reduce carbon footprints by bringing production closer to end markets, it
also presents challenges such as the safe handling of chemicals and the need for cleaner energy inputs. Addressing these issues helps industries enhance resilience, lower emissions, and promote long-term sustainable development.
Handling hazardous materials and power sources
Fabrication in the semiconductor industry employs chemicals and process gases with extremely
high global warming potential, making rigorous oversight indispensable. The US Environmental
Protection Agency Subpart I for Electronics Manufacturing requires semiconductor facilities to
calculate and report annual emissions of fluorinated greenhouse gases, including unreacted
gases that pass-through tool chambers, under procedures defined in 40 CFR 98.93.
In addition, the National Emission Standards for Hazardous Air Pollutants for semiconductor
manufacturing sets limits on hazardous air pollutants released across the entire semiconductor
process chain, covering crystal growth, wafer fabrication, testing and assembly. These measures illustrate how national standards shape operational practices while compelling manufacturers to adopt stricter environmental safeguards.
Sustainable power options and ongoing R&D
Many fabs are investing in renewables, on-site storage, and low-carbon baseload energy.
TSMC’s 2023 Sustainability Report highlights commitments to water reuse and circular economy targets, offering a model for others to follow.
Together, these operational and supply-chain improvements signal an industry embedding
sustainability into its long-term DNA.
The road to greener chips
The path to sustainable semiconductor manufacturing is clear but demanding. By improving
efficiency, adopting SiC and GaN, deploying advanced cooling and strengthening supply chains,
manufacturers can cut costs, limit environmental impacts, and secure competitive
advantage. Leaders who move early will earn trust from both regulators and customers.
Ready to make your fab truly sustainable? Begin by assessing your energy and water use, then
design a roadmap that combines efficiency, cutting-edge materials, and advanced
cooling. Act today and position your organisation as a recognised leader in greener
semiconductor manufacturing.