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 Infineon's headquarters "Campeon" in Neubiberg | |
| Company type | Public |
|---|---|
| ISIN | DE0006231004  |
| Industry | Semiconductor |
| Founded | 1 April 1999; 26 years ago (1999-04-01) |
| Headquarters | , Germany |
Key people |
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| Products | |
| Revenue |  €14.662 billion (2025) |
| €1.515 billion (2025) | |
| €1.015 billion (2025) | |
| Total assets |  €30.47 billion (2025) |
| Total equity | €17.051 billion (2025) |
Number of employees | 57,077 (2025) |
| Divisions |
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| Website | infineon.com |
| Footnotes / references [3] | |
Infineon Technologies AG is a Germansemiconductor manufacturing and design company. It is the leading automotive semiconductor manufacturer globally. The company was spun-off fromSiemens AG in 1999.[4] Infineon employs roughly 57,000 employees, and in 2025, the company achieved sales of approximately €15 billion.[3]
Infineon markets semiconductors and systems forautomotive, industrial, and multimarket sectors, as well as chip card and security products. Infineon has many subsidiaries in the US and in the Asia-Pacific region, inSingapore, andTokyo.
Infineon has a number of facilities in Europe, one inDresden, Germany. Infineon's high power segment is inWarstein, Germany;Villach,Graz andLinz in Austria;Cegléd in Hungary; andItaly. It also operatesR&D centers in France, Singapore, Romania, Taiwan, U.K., Ukraine[5] and India, as well as fabrication units in Malaysia, Singapore, Indonesia, China, Hungary, and USA, including inEl Segundo andAustin, among others. There is a Shared Service Center inPorto, Portugal.[6] Infineon is listed in theDAX index of theFrankfurt Stock Exchange. In 2010, board member Klaus Wucherer was elected as successor to the then-current chairman Max Dietrich Kley.[7] In 2023, it was Germany's largest chip manufacturer.[8] As of 2011, Infineon comprised four business areas after several restructurings:[9]
Infineon provides semiconductor products for use inpowertrains (engine and transmission control), comfort electronics (e.g., steering,shock absorbers,air conditioning), as well as in safety systems (ABS,airbags,ESP [electronic stability control]). The product portfolio includesmicrocontrollers, powersemiconductors, andsensors.
The industrial division of the company (named IPC until 2023)[10] includes power semiconductors and modules which are used for generation, transmission and consumption of electrical energy. Its application areas include control of electric drives for industrial applications and household appliances, modules for renewable energy production, conversion and transmission.
The division, Power & Sensor Systems, sums up the business with semiconductor components for efficient power management or high-frequency applications. Those find application in lighting management systems and LED lighting, power supplies for servers, PCs, notebooks and consumer electronics, custom devices for peripheral devices, game consoles, applications in medical technology, high-frequency components having a protective function for communication and tuner systems and silicon MEMS microphones.
The CSS business provides microcontrollers for mobile phone SIM cards, payment cards, security chips and chips for passports, identity cards and other official documents. Infineon delivers a significant number of chips for the new German identity card.[11]
Infineon bought theTaiwanese chip designerADMtek in 2004.[12][13] In 2006, the former Memory Products division was carved out as Infineon's subsidiaryQimonda AG, of which Infineon last held a little over three-quarters. At its height Qimonda employed about 13,500 people; it was listed on theNew York Stock Exchange until it filed for bankruptcy with the district court in Munich in January 2009.[14]
When Infineon sold Wireline Communications in July 2009 toGolden Gate Capital for €250 million,[15] the resulting company was namedLantiq. With around 1,000 employees,[16] Lantiq was acquired byIntel for US$345 million in 2015.[17] Infineon's wireless business segment was sold to Intel in January 2011 for US$1.4 billion.[18] The new company was namedIntel Mobile Communications (IMC) and has approximately 3,500 employees.[19][20]Apple acquired IMC'ssmartphone modem business in 2019,[21] and released itsC1 baseband six years later, in 2025.
In August 2014 Infineon Technologies agreed to buy theInternational Rectifier Corporation (IR) for about US$3 billion,[22] one third by cash and two-thirds by credit line.[23] The acquisition was officially closed on 13 January 2015.[24] In July 2016, Infineon agreed to buyWolfspeed, a company inNorth Carolina, fromCree Inc. for US$850 million in cash,[25] although the deal was eventually stopped due to U.S. security concerns.[25][26] In October 2016, Infineon acquired the company Innoluce, which has expertise in MEMS andLidar systems for use inautonomous cars. Infineon Technologies AG sold its RF Power Business Unit in March 2018 to Cree Inc. for €345 million.[27] Infineon announced in June 2019 that it would acquireCypress Semiconductor for $9.4 billion.[28][29] The acquisition closed on 17 April 2020.[30][31]
In May 2023, Infineon acquired "tiny machine learning" company Imagimob, aStockholm, Sweden–based company with a platform for development and deployment of AI applications.[32] Infineon acquired GaN Systems, headquartered inOttawa, Canada, in October 2023.[33] Infineon in 2023 acted on an expansion plan by investing EUR 5 billion into its semiconductor fab inKulim, Malaysia.[34] As of 2023[update] Infineon plans to build two additional plants inDresden for €5 billion, asking the government to subsidize it with €1 billion, financed through the €4 billionEuropean Chips Act. It will employ 3000 people.[8] In April 2025, Infineon bought Marvell's automotive ethernet division for $2.5 billion.[35]
In 2004–2005, an investigation was carried out into aDRAM price fixing conspiracy during 1999–2002 that damaged competition and raised PC prices.
In October 2017, it was reported that a flaw, dubbed ROCA, in a code library developed by Infineon, which had been in widespread use in security products such assmartcards andTPMs (Trusted Platform Modules), enabled private keys to be inferred frompublic keys. As a result, all systems depending upon the privacy of such keys were vulnerable to compromise, such as identity theft or spoofing. Affected systems include 750,000Estonian identity cards, 300,000Slovak identity cards,[36] and computers that use MicrosoftBitLocker drive encryption in conjunction with an affected TPM.[37] Immediately after the disclosure, Microsoft released a patch via Windows Update that works around the flaw.[38]
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