International Rectifier

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International Rectifier Corporation an Infineon Technologies Company
Industry Semiconductor
Integrated Circuits
Founded 1947
Headquarters Flag of the United States.svg El Segundo, California
Key people
Eric Lidow, Founder
Robert LeFort, President
Revenue $1.1 billion (June 2014)[1]
Number of employees
4,200 (June 2014)[1]
Parent Infineon Technologies

International Rectifier was an American power management technology company manufacturing analog and mixed-signal ICs, advanced circuit devices, integrated power systems, and high-performance integrated components for computing. On 13 January 2015, the company became a part of Infineon Technologies.[1]

IR's products, as a part of Infineon Technologies' overall semiconductor portfolio, continue to be used in many applications including lighting, automobile, satellite, aircraft, and defense systems; as well as key components in power supply systems in electronics-based products that include especially microcomputers, servers, and networking and telecommunications equipment.


  • 1954: commercialization of germanium rectifiers
  • 1959: creation of the first silicon-based rectifier
  • 1974: first power and Darlington transistors which used glass passivation
  • 1979: first hexagonal MOSFET
  • 1983: first intelligent power ICs
  • 1983: lost a patent infringement lawsuit over the rights to doxycycline to Pfizer, Inc., resulting in a judgment of $55 million to Pfizer. To avoid bankruptcy, the International Rectifier gave Pfizer its animal health and feed additive businesses.[2][3]
  • 2000: developed FlipFET wafer packaging
  • 2002: developed DirectFET, a MOSFET packaging technology developed to address thermal limitations found in advanced computing, consumer and communications applications
  • 2003: developed iMOTION Integrated Design Platform for motor control applications
  • 2006: introduced SmartRectifier IC for AC/DC applications
  • 2007: launched SupIRBuck integrated voltage regulators
  • 2008: introduced revolutionary GaN-based power device platform
  • 2011: introduced PowIRstage devices and CHiL digital controllers
  • 2012: launched micro integrated power modules for motor control applications and COOLiRIGBTs for automotive.
  • 2014: bought by Infineon Technologies for $3 billion.[4]
  • 2015: officially becomes a part of Infineon Technologies


International Rectifier also has wafer fabrication and assembly facilities around the world. The locations include:

  • El Segundo, California
  • Temecula, California
  • Leominster, Massachusetts
  • Mesa, Arizona
  • San Jose, California
  • Newport, Wales
  • Tijuana, Mexico


  1. ^ a b c "Infineon Technologies AG successfully acquires International Rectifier". 
  2. ^ "RECTIFER RE-EMPHASIZES ELECTRONICS." New York Times, Late Edition (East Coast) ed.Aug 02 1983. ProQuest. Web. 14 Nov. 2015.
  3. ^ Amernick, Burton Patent Law for the Nonlawyer. Springer Science and Business Media, 2012. page 2.
  4. ^ Infineon to Buy International Rectifier, a Chip Maker, for $3 Billion

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