Why is power quality so critical in semiconductor fabs?

In today’s semiconductor industry, power quality is one of the key business priority. As fabs become more advanced and energy-intensive, even minor power can impact yield, revenue, and sustainability.

To build truly resilient semiconductor fabs, power quality must be managed as a strategic asset. Here’s why:

1. How much can a power quality event cost a semiconductor fab?

Production interruptions can cost millions per hour. Fabs run 24/7 with highly synchronized processes, so even brief outages can halt operations, damage wafers, and require long recovery times. In advanced facilities, downtime can exceed $1–$2 million per hour.

Real-world events show the risk: a brief power disruption at TSMC’s Arizona fab shut down operations and ruined thousands of wafers, while a 2026 blackout in Dresden hit major fabs, proving even short outages can disrupt production at scale.

2. Why does yield depend on power stability?

Semiconductor manufacturing operates at nanometer precision, where even milliseconds of instability can disrupt processes like lithography and etching. A 10–20 ms voltage sag can halt equipment, cause wafer scrap, and lead to defects or lost batches. Even minor power disturbances can render wafers unusable and require tool recalibration, extending recovery times. On a scale, the impact of small yield losses can translate into millions in annual costs, along with increased energy waste.

3. Why does scaling semiconductor production increase risk?

The semiconductor industry is rapidly expanding to meet demand from AI, automotive, and digital infrastructure, but scaling production also increases exposure to energy-related risks. Fabs rely on stable power and can experience dozens of voltage sag events each year, many severe enough to disrupt operations. Their massive energy consumption, often comparable to that of small cities, heightens dependence on grid reliability. As a result, even a single power quality outage can create ripple effects across global supply chains, causing production gaps, shortages, and delays across multiple dependent industries.

4. Why power quality matters for sustainable semiconductor manufacturing?

Sustainability is now a top priority for semiconductor manufacturers, and power quality plays a direct role in achieving energy and carbon goals.

• Poor power quality leads to higher energy consumption, inefficiencies, and utility penalties.
• Power disturbances increase scrap, rework, and wasted energy, raising overall emissions.
• Semiconductor manufacturing’s energy footprint is significant, requiring active management to improve efficiency and reduce environmental impact.

At a global level, electricity demand is rising rapidly due to digitalization, AI, and industrial growth, making efficient energy use even more critical for sustainability.

Building resilient Semiconductor Fabs

Power quality is a key business driver. To build resilient fabs, organizations should:

• Monitor power quality in real time
• Deploy right mitigation solutions (UPS, voltage regulation, filtering)
• Strengthen infrastructure across utilities and suppliers
• Align power strategy with financial and sustainability goals

“Power quality underpins precision, uptime, and efficiency, protecting yield, reducing downtime, and enabling sustainable growth”- Henri Berthe, VP, Semicon segment, Schneider Electric.

EcoStruxure™ Power supports the full fab lifecycle, from design and simulation to real-time monitoring and predictive analytics. With built-in cybersecurity and advanced energy insights, fabs can improve yield, cut energy losses, and reduce emissions.

The result: higher uptime, faster time to market, and a clear path to move towards sustainable manufacturing.

👉 Download the white paper: “Building resilient semiconductor fabs through smart power” developed by Schneider Electric experts: Roopa Jalakantan, Matthieu Dessaux, Jean Christophe Guedes and John Cheng.