Silicon technology

Infineon offers the broadest silicon power portfolio in the market, distinguished by its unmatched quality and leading in all figures of merit (FOM). This portfolio provides the best price-performance, and is easy and robust to use, with a high variety of customized optimizations for every application across all voltage classes.

Leadership in silicon power MOSFETs

Leadership in silicon power MOSFETs

Infineon is the global MOSFET market leader, offering the broadest portfolio of right-fit MOSFET products for every application. Infineon silicon power MOSFETs are designed to enable best-in-class performance, reliability and ease-of-use in power switching, control and conversion. This means more efficiency, power density and cost effectiveness for products and system solutions.

Infineon silicon power MOSFETs are highly optimized for major applications like switched mode power supplies, DC-DC converters, inverters for residential solar applications, and motor drives. Infineon offers the broadest Si MOSFET portfolio with a high variety of customized optimizations for specific application needs, with MOSFETs that are easy and robust to use. Infineon silicon power MOSFETs are setting the industry benchmark in performance excellence. Based upon the newest MOSFET technology, they offer outstanding capabilities in switching, thermal performance, and resistance, tailored to our customers’ needs. Infineon silicon power MOSFETs meet the highest quality and protection standards, enabling assured product reliability, dependable system uptime, and proven supply stability.

The Si MOSFET market is one of the largest component markets in the power semiconductor industry. Infineon is the unprecedented leader in the high-performance segment of power MOSFETs and serves a broad variety of applications with MOSFETs as standard components and customized optimizations. Infineon excels in best price-performance ratio as well as in ease of doing business and short time to market due to optimized technologies and processes as well as with industry’s largest economies of scale in 12-inch fabs.

The Infineon power MOSFET technology roadmap is driving innovation in the industry, e.g. enabling new topologies for power conversion as multilevel AC-DC converters with 150 V MOSFETs or the integration of functionality like eFuses with protection ICs. We are further innovating with customized MOSFETs in one package or advancing cooling concepts based on the better thermal capabilities of our products such as source down packages. State of the art innovation like the world’s first 20 Micrometer silicon wafer technology is a testimonial of Infineon's technology strength. Trending applications, such as powering AI data centers in the most reliable and efficient way, rely on optimized silicon technology in multiple conversion steps across the complete power flow. Infineon silicon technology is enabling this with its reliability and availability of a broad package portfolio to support multiple cooling concepts. Infineon’s silicon experts hold strong experience to implement the highest customer demands at the speed of light, globally. Innovation from Infineon is strongly connected to performance, reliability, and ease-of-use in power switching, control, and conversion to accelerate value for customers.

Infineon silicon MOSFETs enable power solutions which increase system efficiency and power density. These devices are specifically optimized to meet individual system requirements, driving the customers’ market success while reducing the overall system cost. Based on application requirements, Infineon provides the leading-edge power switch offering in the industry covering Si (CoolMOS™, OptiMOS™, StrongIRFET™), SiC, and GaN in the widest range of power packages combined with dedicated system ICs (e.g. EiceDRIVER™ gate-driver family) and propriety power conversion topologies.

With proven technology and supply stability, Infineon enables reliable performance on a global scale. Infineon has a strong focus on high quality standards and long-term availability. With the largest silicon power MOSFET production capacity worldwide, high supply stability for customers’ demand is ensured by dual fab concepts for most of the technologies serving all markets, from six frontend and ten backend facilities and a resilient supply chain network for regional requirements. 

Infineon is the global market and technology leader for silicon power MOSFETs and power systems. With the industry’s broadest product and package portfolio, Infineon is serving any application from low to high voltage and providing the full offering of power systems with Si, SiC, and GaN solutions, with the best price-performance in the market. Infineon MOSFETs are designed to enable best-in-class performance, reliability, and ease-of-use in power switching, control, and conversion. Infineon silicon technology is a benchmark in the industry.

Infineon ultra-thin silicon wafer technology
Infineon ultra-thin silicon wafer technology
Infineon ultra-thin silicon wafer technology

Ultra-thin silicon power wafer technology

With only 20 micrometers thickness Infineon reached a breakthrough in processing the thinnest silicon power wafers ever manufactured on a diameter of 300 millimeter in a high-scale semiconductor fab. The wafers are thinner than human hair and half the thickness of current state-of-the-art wafers allowing Infineon to deliver outstanding customer value by pushing the technical boundaries of semiconductor technology. 

Silicon ultra-thin wafers will help to significantly increase energy efficiency, power density and reliability in power conversion solutions in AI data center, consumer, motor control and computing applications.

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Applications

As the leader in power systems, Infineon is mastering all three relevant semiconductor materials, with a broad portfolio in silicon (Si) alongside silicon carbide (SiC) and gallium nitride (GaN). Infineon supports customers along their requirements, offering solutions for complementary or singular use across all voltage classes and applications, leveraging all benefits of Si, SiC and GaN to accelerate customer value.

Si SiC GaN applications visual
Si SiC GaN applications visual
Si SiC GaN applications visual

Products

OptiMOS™ and StrongIRFET™ power MOSFETs

OptiMOS™ power MOSFETs deliver best-in-class performance in combination with highest efficiency and power density. StrongIRFET™ power MOSFETs are designed for rugged industrial applications and are ideal for designs with a low switching frequency and those that require a high current carrying capability.

OptiMOS™ and StrongIRFET™

CoolMOS™ N-channel power MOSFETs

CoolMOS™ MOSFETs cater for a wide range of voltage classes with outstanding commutation ruggedness, resulting in increased efficiency and ease of use while significantly lowering switching and conduction losses.

CoolMOS™

MOSFET technology

Find out more about the MOSFET technology with this beginner's guide and dive deeper into the structure of MOSFETs, operation modes of N-channel MOSFETs, current-voltage curves, and more.

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Documents

Documents

Infineon unveils silicon power wafer of only 20 micrometers thickness

To overcome the technical hurdles in reducing wafer thickness to the order of 20 micrometers, Infineon engineers had to establish an innovative and unique wafer grinding approach, since the metal stack that holds the chip on the wafer is thicker than 20 micrometers. This significantly influences handling and processing the backside of the thin wafer.

Additionally, technical and production-related challenges like wafer bow and wafer separation have a major impact on the backend assembly processes ensuring the stability and first-class robustness of the wafers.

Technological breakthrough: Infineon introduces the world's thinnest silicon power wafer

Infineon is the first semiconductor manufacturer in the world that masters handling and processing of ultra-thin 20-micrometer power semiconductor wafers which are half the thickness of conventioal wafers of 40-60 micrometers.

Ultra-thin wafers reduce substrate resistance by half and cut down power losses by over 15%. The industry-first technology addresses various applications and reinforces Infineon's Powering AI roadmap.

Silicon power MOSFETs

Infineon offers the broadest poftolio of right-fit MOSFET products for every application, designed to enable best-in-class performance, reliability and ease-of-use in power switching, control, and conversion.