Smart fabs, cleaner water – how Industry 4.0/5.0 technologies are rewriting the sustainability playbook

Sustainability is accelerating with the help of smart manufacturing – a new SEMI roadmap leads the way.

Semiconductor fabs are being asked to do two things at once: scale up capacity to meet surging chip demand and do so without overstepping regulatory limits on water consumption, hazardous waste, or carbon emissions. For fab sustainability and operations managers, that tension is felt daily. A newly released SEMI roadmap addresses carbon emissions, water use, and hazardous waste under a common, systematic smart manufacturing framework.

A bottom-up approach built for operations teams

In contrast to previous sustainability methodologies applied across the industry, this is the first industry roadmap taking a comprehensive bottom-up approach, starting at the process tool level, to identifying industry best practices around meeting sustainability goals, leveraging smart technology. A bottom-up, structured, data-driven approach addressing the heart of the issues concerning water, emissions and waste reductions is far more beneficial than one that is top-down, which often lacks scalability as fabs expand and/or process flows are elongated.

The roadmap covers the cleanroom, subfab, and facilities levels in detail for brownfield fabs, and crucially does not rely on fabs compromising process flows exclusively to achieve improvements in sustainability metrics – instead, can generate enhancements across the board independent of process flow to optimize Scope 1 process-based and Scope 2 energy-based carbon emissions, water and hazardous waste metrics individually with clear ROI benefits.

Water and hazardous waste: second whitepaper emphasizes circularity in facilities

The roadmap spans two whitepapers. The first addressed Scope 1 and 2 emissions; the second, released in Spring 2026, focuses specifically on smart water and hazardous waste management in device-making fabs. This latest whitepaper, following the same concept as the first, showcases use case technology solutions that can progress up the ladder of connecting, sensing and predicting phases for cumulative improvements in water and waste reductions that can be applied by facilities management teams to achieve strategic goals faster.

The curated ranking criteria for use case solutions based on relative reduction impact for emissions, water and waste to baseline levels and technology readiness level (TRL) assessments are set to change the game for fabs when it comes to prioritizing investment based on what is currently deployable, and what’s on the horizon.

The business case: beyond compliance

The whitepapers also make an explicit ROI argument that goes beyond regulatory compliance. Identified benefits include cost savings on process materials, utilities, and labor, alongside higher yield and shorter cycle times following implementation. For facilities managers grappling with capital allocation agendas, having use cases quantified in terms of projected normalized fab sustainability baseline metrics, helps support the business case and prioritizes the allocation of capital for associated smart water and waste infrastructure, including machine learning and AI resources highlighted in the roadmap.

What’s coming next?

In addition to the roadmap whitepaper summary, the SEMI Smart Sustainability Model (SSM) is on the horizon – a tool that will allow fabs to estimate sustainability gains for all four sections of the roadmap based on their operational profile such as the relative proportion of water consumption across different levels of the fab. The SSM will provide a baseline of an average 300mm fab drawn based on task force estimates for those without granular tracking. The bottom-up approach within the SSM offers scalability in an era of intense chip demand and exploding fab wafer capacity.

A numerical, prioritized approach to semiconductor sustainability technology implementation, the SSM will be a critical tool for fab leaders to guide strategy and decision-making for achieving Facility 2.5 – progressing from industry benchmarking to real-time actionable insights by leveraging Industry 4.0/5.0 innovation such as AI.

Both whitepapers are available for download via SEMI's website. The first whitepaper covers the Scope 1 and 2 emissions roadmap, whereas the second addresses water consumption and hazardous waste best practices. Read the blog post by Brian Coppa (ULVAC), Amit Srivastava (Micron), Mark da Silva (SEMI), and Anshu Bahadur (SEMI) for more details here.