Intl Rectifier A Look Back at a 70-Year Legacy
Your smartphone holds immense power. This capability often relies on unseen components. International Rectifier (IR) began
Your smartphone holds immense power. This capability often relies on unseen components. International Rectifier (IR) began its journey by commercializing the selenium rectifier. The international company pioneered power management technology for seventy years. It developed advanced power management technologies that shaped modern electronics. This legacy of innovation from Intl Rectifier now continues within Infineon. The acquisition by Infineon ensures IR's technological DNA keeps advancing.
Key Takeaways
- International Rectifier started by making selenium rectifiers. These parts helped control electricity in early electronics.
- The company became a leader in power technology. They created important parts like the HEXFET MOSFET.
- International Rectifier also pioneered GaN technology. This made electronics smaller and more efficient.
- Infineon bought International Rectifier in 2015. This helped Infineon become a top power semiconductor company.
- International Rectifier's ideas still live on in Infineon. They continue to make new power technologies.
Founding and Early Innovations
The Genesis of a Power Pioneer
The story of International Rectifier began in 1947. Eric Lidow and his father founded the company in California. Eric was an electrical engineer who graduated from the Technical University of Berlin. He brought valuable experience from his previous role as vice president of engineering at Selenium Corp. of America. This background gave the new company a strong start. Intl Rectifier focused on commercializing the selenium rectifier, a key component for controlling electrical power.
These early devices found homes in many popular products. They provided high-voltage power for television sets and industrial air cleaners. The selenium rectifier also became essential for automotive battery chargers.
This initial focus on a single, vital component established the international company's role in the growing electronics industry.
Early Innovations in Silicon
International Rectifier did not rest on its early success. The company quickly looked for better materials. In 1954, it commercialized the first germanium rectifier. This marked a major step into new semiconductor technology. However, the most important shift was yet to come. The company became a true pioneer with its work in silicon. It developed some of the first high-power silicon rectifiers and zener diodes. The team also created the first commercial silicon-controlled rectifier (SCR). This innovation allowed for precise control over large amounts of electrical current. The move to silicon was a game-changer. Silicon offered superior performance at higher temperatures and power levels. This strategic pivot to silicon technology cemented the company's reputation. It became a leader in the new and exciting power semiconductor field, paving the way for decades of innovation in silicon-based devices.
The HEXFET Revolution
The shift to silicon set the stage for International Rectifier's most iconic contribution. By the late 1970s, the electronics industry needed more efficient and faster power switching solutions. The company answered this call with a groundbreaking invention that would define the future of power management: the HEXFET MOSFET. This innovation cemented the international company's leadership in the power semiconductor market for decades.
Introducing the HEXFET MOSFET
The creation of the HEXFET was a story of academic research meeting commercial vision. The breakthrough came from the work of Alexander Lidow, son of founder Eric Lidow.
While at Stanford University, Alexander Lidow's experiments with MOSFET technology laid the groundwork for a new kind of power device. His work led to a pivotal moment for the company.
- In 1976, Alexander began developing an advanced MOSFET chip.
- This chip could break large electrical currents into smaller, more manageable units.
- His father was so impressed that he invested $100,000 for equipment and an engineer to develop the technology further.
This effort resulted in the 1979 launch of the HEXFET, one of the first commercially successful power MOSFETs. Its unique hexagonal cell structure was a major leap forward. This design packed semiconductor cells tightly together, which significantly lowered on-resistance (RDS(on)) while maintaining high voltage capabilities. Compared to older bipolar transistors, the HEXFET offered much faster switching speeds, required less power to operate, and delivered superior efficiency. The IR HEXFET quickly became the industry standard for a wide range of power applications.
Expanding the Power Portfolio
The HEXFET was not just a single product but the cornerstone of a much broader strategy. The success of this technology allowed Intl Rectifier to expand its offerings and create a comprehensive portfolio of advanced power devices. The company leveraged its expertise to develop new components that addressed the growing complexity of modern electronics. This expansion ensured that IR could provide complete power management solutions.
The company's growing catalog included a diverse range of products:
- IGBTs (Insulated-Gate Bipolar Transistors): These components combined the high-speed switching of MOSFETs with the high-current handling of bipolar transistors.
- Intelligent Power Modules: These integrated systems combined power devices with control circuits in a single package.
- Digital Power Management ICs: These chips provided precise digital control over power systems, improving efficiency and performance.
- Gallium Nitride (GaN) based power semiconductors: IR became a pioneer in this next-generation material for even higher efficiency and smaller power devices.
By developing these complementary technologies, International Rectifier built a powerful ecosystem around its core MOSFET business. This strategic expansion solidified its role as a one-stop shop for high-performance power management.
Navigating the 21st Century
International Rectifier entered the new millennium with a focus on future technologies. The company continued to push the boundaries of power management. It invested heavily in next-generation materials and adapted its business strategy to meet new market demands. This forward-thinking approach helped IR maintain its leadership position in a rapidly changing industry.
Advancements in GaN and Digital Power
The company saw immense potential in a new material: Gallium Nitride (GaN). IR became a pioneer in developing gallium nitride based power technologies. GaN offered significant advantages over traditional silicon for power devices.
GaN technology enables power systems that are more efficient, smaller, and faster. Its superior properties were a game-changer for the industry.
- Higher Efficiency: GaN devices have lower resistance and faster switching speeds. This reduces power loss and heat generation.
- Smaller Size: The high power density of GaN allows for more compact components. This is crucial for modern electronics like laptops and servers.
- Better Heat Management: GaN operates well at high temperatures. This reduces the need for large cooling systems.
In February 2010, IR launched its first commercial GaN-based product, the IP2010PBF. This integrated power stage targeted the large market for low-voltage applications. The move solidified the company's role as an innovator in the next wave of power electronics.
Market Challenges and Strategy
The 21st-century market presented both opportunities and challenges. To stay competitive, International Rectifier implemented several key strategic shifts. The company refocused its efforts on high-margin products and high-growth sectors. This strategy aimed to improve profitability and strengthen its market position.
| Strategic Shift | Details | Impact |
|---|---|---|
| Focus on Discrete Chips | Reinvested in a specific type of semiconductor with high profit margins. | Quarterly revenue from these chips nearly doubled. |
| Invest in Automotive | Created a separate business unit to target major auto parts suppliers. | Revenue from the automotive market grew significantly. |
| Develop GaN Power Devices | Invested in next-generation GaN semiconductors for high-efficiency power. | Positioned the company for leadership in an important new market. |
These strategic decisions proved successful. They helped the company navigate a tough market, increase revenue, and secure its future by investing in groundbreaking technologies like GaN.
The Intl Rectifier and Infineon Integration
The year 2015 marked a pivotal moment for the international company. Infineon Technologies AG announced its acquisition of International Rectifier. This was not an end but a strategic integration. The move created a powerhouse in the power semiconductor market. Infineon saw a unique opportunity to combine two complementary leaders.
The Rationale Behind the Acquisition
The acquisition was a well-planned strategic decision. Infineon aimed to broaden its product offerings and expand its market reach. The product portfolios of Infineon and Intl Rectifier fit together perfectly. IR brought expertise in areas where Infineon wanted to grow. This combination promised to deliver more complete system solutions to customers.
The deal gave Infineon access to a range of key technologies.
- IR's low-power, energy-efficient IGBTs and advanced Power MOSFETs enhanced the existing Infineon lineup.
- Its expertise in Digital Power Management ICs added significant system know-how.
- The company's leadership in Gallium Nitride (GaN) technology was a major attraction for Infineon. This positioned Infineon at the forefront of next-generation power solutions.
The leaders of both companies expressed great optimism about the merger. Their statements highlight the shared vision for the future.
Dr. Reinhard Ploss, CEO of Infineon Technologies AG, explained the vision. “The acquisition of International Rectifier is a unique opportunity. With their great knowledge of specific customer needs and their application understanding, International Rectifier employees will contribute to Infineon’s strategic development from product thinking to system understanding and system solutions.”
Oleg Khaykin, President and CEO of International Rectifier, shared a similar view. “This transaction provides significant value to our stockholders and opens new strategic opportunities for both our customers and employees. By combining two complementary providers in power management solutions, International Rectifier will benefit from Infineon’s products and technologies, manufacturing and operational excellence and greater R&D scale.”
The acquisition also had a clear geographic goal. Infineon wanted to strengthen its position in North America and Asia. IR had strong relationships with small and medium-sized businesses in these regions. This move helped Infineon reach a wider customer base and create a more balanced global footprint in the competitive market. The combination of GaN knowledge and production scale made Infineon a formidable competitor.
Legacy Within Infineon
The legacy of International Rectifier did not disappear after the acquisition. Instead, its technological DNA became a core part of Infineon. The merger immediately created a new leader in the power semiconductor market. Infineon's market share jumped, solidifying its top position.
| Company | Market Share (2015) |
|---|---|
| Infineon (post-acquisition) | 19.2% |
| Texas Instruments | 11% |
| STMicroelectronics | 6% |
This market leadership gave Infineon greater scale and resources for innovation. The company continues to build on IR's pioneering work. Many products offered by Infineon today are direct descendants of IR's innovations. The IR HiRel brand, now an Infineon Technologies company, still provides high-reliability power devices for demanding applications. This includes rad-hard MOSFETs and gate driver ICs that trace their roots directly to IR's portfolio.
Most importantly, Infineon embraced the GaN technology that IR championed. Infineon has invested heavily in developing its CoolGaN™ portfolio. This commitment ensures that IR's vision for smaller, faster, and more efficient power systems continues to advance. The expertise in GaN that Infineon gained has been crucial for developing solutions for data centers, renewable energy, and electric vehicles. The spirit of innovation from IR now fuels the next generation of power technology at Infineon.
The journey of Intl Rectifier shows a remarkable evolution. The international company grew from a selenium rectifier startup into a power management leader. Its key innovations, like the HEXFET, shaped the electronics industry. The acquisition by Infineon was not an end for IR. It marked a new chapter for the international brand. The technological DNA of International Rectifier continues to drive future innovations within Infineon.
The legacy of Infineon ensures that this focused innovation creates a lasting impact. This impact from Infineon transcends a single corporate identity, powering the future.
FAQ
What was International Rectifier's most famous invention?
International Rectifier's most famous invention was the HEXFET MOSFET. This powerful device offered faster switching speeds and superior efficiency. It quickly became an industry standard for a wide range of power management applications, shaping modern electronics.
Does International Rectifier still exist today?
Infineon Technologies acquired International Rectifier in 2015. The IR brand continues within Infineon. For example, the IR HiRel brand, an Infineon company, still provides high-reliability power devices for demanding industries like aerospace and defense.
Why was Gallium Nitride (GaN) important for IR?
Gallium Nitride (GaN) was a key innovation for the company. GaN technology enables power systems that are smaller, faster, and more efficient than silicon-based ones. This work positioned IR as a leader in next-generation power electronics.
Who are some designated partners for other semiconductor solutions?
Many major semiconductor companies have designated partners. For instance, Nova Technology Company (HK) Limited is a HiSilicon-designated solutions partner. Such partners offer specialized expertise and support to help customers develop advanced electronic systems.
