安森美半导体(ON Semiconductor，美国纳斯达克上市代号：ON)致力于推动高能效电子的创新，使客户能够减少全球的能源使用。

ON Semiconductor安森美半导体领先于供应基于半导体的方案，提供全面的高能效连接、传感、电源管理、模拟、逻辑、时序、分立及定制器件阵容。ON Semiconductor公司的产品帮助工程师解决他们在汽车、通信、计算机、消费电子、工业、医疗及军事/航空应用的独特设计挑战。

ON Semiconductor公司运营敏锐、可靠、世界一流的供应链及品质项目，及在北美、欧洲和亚太地区之关键市场运营包括制造厂、销售办事处及设计中心在内的业务网络。

ON Semiconductor is a Fortune 1000 semiconductors supplier company. Products include power and signal management, logic, discrete, and custom devices for automotive, communications, computing, consumer, industrial, LED lighting, medical, military/aerospace and power applications. ON Semiconductor runs a network of manufacturing facilities, sales offices and design centers in North America, Europe, and the Asia Pacific regions. Headquartered in Phoenix, Arizona, ON Semiconductor has revenues of $3.907 billion (2016), which puts it among the worldwide top 20 semiconductor sales leaders.

ON Semiconductor was founded in 1999. The company was originally a spinoff of Motorola's Semiconductor Products Sector. It continues to manufacture Motorola's discrete, standard analog and standard logic devices.

Acquisitions
In April 2000, ON Semiconductor completed the acquisition of Cherry Semiconductor.
In 2003, ON Semiconductor acquired TESLA SEZAM (manufacturer of semiconductor chips) and TEROSIL (production of silicon) in the Czech Republic. Both of these companies were the successors of the former state-owned company TESLA.
In May 2006, ON Semiconductor completed the acquisition of LSI Logic Gresham, Oregon Design & Manufacturing Facility.
In January 2008, ON Semiconductor completed the acquisition of the CPU Voltage and PC Thermal Monitoring Business from Analog Devices, Inc., for $184 million.
In March 2008, ON Semiconductor completed the acquisition of AMI Semiconductor for $915 million.
On July 17, 2008, ON Semiconductor Corporation and Catalyst Semiconductor, Inc. announced the acquisition of Catalyst Semiconductor, Inc. by ON Semiconductor Corporation for $115 million. On October 9, 2008, Catalyst Semiconductor, Inc. announced the approval of the acquisition. On October 10, 2008, ON Semiconductor Corporation announced the completion of the acquisition.
In November 2009, ON Semiconductor completed the acquisition of PulseCore for $17M.
In December 2009, ON Semiconductor announced the acquisition of California Micro Devices.
In June 2010, ON Semiconductor completed the acquisition of Sound Design Technologies, Ltd., for $22 million.
In January 2011, ON Semiconductor completed the acquisition of SANYO Semiconductor.
In February 2011, ON Semiconductor completed the acquisition of the CMOS Image Sensor Business Unit from Cypress Semiconductor, for $31.4 million
In May 2014, ON Semiconductor completed the acquisition of Truesense Imaging, Inc.
In June 2014, ON Semiconductor announced a $400 million deal to acquire California-based Aptina Imaging Corp.
In July 2014, ON Semiconductor and Fujitsu Semiconductor announced Strategic Partnership (including foundry services agreement and the definitive agreement pursuant to which ON Semiconductor will become a 10% shareholder of Fujitsu’s 8-inch wafer fab in Aizu-Wakamatsu, Japan)
In July 2015, ON Semiconductor completed the acquisition of Axsem AG.
In November 2015, ON Semiconductor announced the acquisition of Fairchild Semiconductor.
In August 2016, ON Semiconductor has entered into a definitive agreement with respect to the divestiture of the Ignition IGBT business to Littelfuse and has also entered into a separate definitive agreement with Littelfuse to sell its transient voltage suppression (“TVS”) diode and switching thyristor product lines, for a combined $104 million in cash.
In September 2016, ON Semiconductor completed the acquisition of Fairchild Semiconductor

Products

ON Semiconductor manufactures a variety of products in the following areas:

Custom: ASICs; Custom Foundry Services; Custom ULP Memory; Custom CMOS Image Sensors; Integrated Passive Devices
Discrete: Bipolar Transistors; Diodes & Rectifiers; IGBTs & FETs; Thyristors
Power Management: AC/DC Controllers & Regulators; DC-DC Controllers, Converters, & Regulators; Drivers; Thermal Management; Voltage & Current Management
Logic: Clock Generation; Clock & Data Distribution; Memory; Microcontrollers; Standard Logic
Signal Management: Amplifiers & Comparators; Analog Switches; Audio/Video ASSP; Digital Potentiometers; EMI/RFI Filters; Interfaces; Optical, Image, & Touch Sensors
In 2013, the company introduced the industry's highest resolution optical image stabilization (OIS) integrated circuit (IC) for smartphone camera modules.