Servomex Group Limited
Setting New Standards in Semiconductor Gas Analysis

In the semiconductor manufacturing industry, the purity of process gases is absolutely critical. During wafer production, impurities in gases can lead to defects in the semiconductor layers, compromising the functionality, yield, and reliability of microchips.

That’s where Servomex Group Limited, a global leader in gas analysis, has carved out a pivotal role.

Established in 1952, Servomex has a rich history of innovation in gas analysis. Today, it provides solutions that meet the stringent purity standards required by semiconductor fabs worldwide. As part of Spectris plc, a company focused on productivity-enhancing instrumentation, Servomex brings cutting-edge technology and expertise to clients ranging from semiconductor manufacturers to major industrial gas suppliers.

Joseph Ha, director of product marketing and management purity & specialty business unit, Servomex Group Limited, says, “As semiconductor technology advances, the demand for ultra-pure processes intensifies, requiring gas analysis capable of detecting impurities at parts-per-billion (ppb) or even parts-per-trillion (ppt) levels. To ensure compliance with stringent environmental regulations and industry standards, fabs must deploy precise gas analysis equipment that meets these benchmarks and enables effective emissions monitoring at critical points.”

Servomex's flagship products, such as the SERVOPRO NanoTrace DF-500 and DF-700 ULTRA analyzers, offer unparalleled precision and the lowest detection limits in the industry for oxygen and moisture analysis. The advanced NanoChrome ULTRA provides multi-gas measurements, completing its suite of high-accuracy analyzers essential for quality control in wafer manufacturing.

The company’s commitment to innovation is evident in its substantial investments in its U.S. Technical Center, where it has expanded capacity for the DF-700 series. These enhancements have shortened lead times to around 18 weeks, a significant improvement that helps clients meet tight production timelines. Furthermore, the company is doubling its capacity for coulometric cells used in the DF-500 analyzer, ensuring the consistent availability of critical components for its installed base. Through this investment in production and capacity, Servomex reinforces its position as a reliable, single-supplier solution for ultra-high-purity gas analysis.

Beyond technological advancements, Servomex sets itself apart with its comprehensive service model, offering both turnkey continuous quality control systems and standalone analyzer solutions that integrate seamlessly into existing manufacturing processes. Servomex’s analyzers are designed to be mounted in racks if required, allowing for straightforward integration into semiconductor fabs' quality-control systems. Equipped with various digital communication options, including Ethernet and RS232/ RS485, the devices can be monitored and controlled remotely. This flexibility in design allows semiconductor fabs to adapt Servomex solutions to their specific needs and ensures that the analyzers remain compatible with evolving process standards.

Servomex’s analyzers are designed to meet stringent global regulations, such as IEC 61010-1 and the EU low voltage directives. By adhering to these standards, the company enables its clients to maintain regulatory compliance effortlessly, avoiding potential downtime or fines associated with non-compliance. Servomex's emphasis on compliance also highlights its commitment to sustainability, demonstrated by the company's recent EcoVadis Gold Rating for Sustainability in 2022 and 2023.

Servomex places significant importance on customer collaboration, regularly seeking feedback through technical review meetings, voice-of-customer sessions, and quality assessments. This proactive approach enables continuous product improvement and supports the development of solutions that anticipate, rather than react to, client needs. Servomex’s newly launched Gen-7 upgrades for the DF-700 moisture analyzer and DF-500 oxygen analyzers are direct outcomes of this customer-centric strategy. These next-generation models combine high detection accuracy with enhanced digital design, ease of use, and faster troubleshooting capabilities. Features like a larger display, user-friendly interface, and solid-state storage are added based on client input, making these analyzers more adaptable to the challenges of modern semiconductor manufacturing.

One highlight of Servomex’s product line is the SERVOPRO NanoTrace DF-560E ULTRA, which boasts an exceptional lower detection limit (LDL) of 45 ppt. This analyzer, equipped with high-stability coulometric sensing technology, is engineered to respond rapidly to applications prone to environmental shifts. Capable of monitoring oxygen in various background gases, the DF-560E ULTRA supports semiconductor fabs in achieving the purity levels essential for high-quality wafer production. Additionally, the DF-760E ULTRA combines oxygen and moisture measurements in one compact unit, providing a cost-effective solution for dual gas monitoring.

Led by a team of experts, Servomex has developed a reputation for technical excellence and industry expertise. The Purity and Specialty (P&S) division, managed by industry veterans such as Matt Chambers, focuses exclusively on the semiconductor market, ensuring that each solution is tailored to the unique demands of wafer production. This team, which includes seasoned professionals like Senior Product Specialist Phil Rogers, with over three decades of experience, brings unparalleled knowledge and technical skills to bear on every client project. The company is a critical partner to semiconductor manufacturers worldwide, helping them achieve the purity and efficiency required to succeed in an increasingly competitive market.