Intelligent Technology. Better Future.

We are building a better future through intelligent technology. For over 60 years, onsemi and its ancestors have been leading the world’s greatest technology advancements.

Creating a Better Tomorrow. Today.

Our intelligent power technologies enable energy efficient solutions across all applications by providing improved power factor, enhanced active-mode efficiency and reduced standbymode power consumptions. Our intelligent power technologies allow our customers to exceed range targets with lower weight and reduce system cost through efficiency.

Sustainability Report

Corporate Fact Sheet

Company Facts

Investor Relations

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Giving Now Program

Giving Priorities

Our Leadership

Get to know the individuals who shape the company's culture, drive growth, and champion a collaborative and inclusive work environment.

Our Leadership

Our Mission

We push innovation to create intelligent power and sensing technologies that solve the most challenging customer problems. Our employees are inspired each day to increase stakeholder value through high-quality and high-value products and services.


Scottsdale, Arizona


employees worldwide


different parts

Markets and Products

As a leading semiconductor manufacturer with over 80,000 different parts, including advanced MOSFETs, Image Sensors, Silicon Carbide technology (EliteSiC) and a global supply chain, onsemi serves tens of thousands of customers across several markets, enabling them to power the future with intelligent power and sensing technologies.

Our Products



5G & Cloud


& Defense

Manufacturing, Design and Solutions

With a robust infrastructure, the company boasts an extensive network comprising of 19 manufacturing sites, 43 design centers, and 8 solution engineering centers.

All Locations


We have 19 manufacturing centers in 9 countries

Design Centers

We have 43 design centers in 19 countries

Solution Engineering

We have 8 solution engineering centers in 5 countries

Our History

Through both acquisition and robust internal development, onsemi has achieved leadership positions in several markets and technologies that fuel its growth, including automotive, industrial, and cloud power. In 2021, to better reflect its broad technology portfolio, differentiated product lines, and market leadership, ON Semiconductor rebranded itself as onsemi.

July 4, 1999

Spin-Off from Motorola

April 28, 2000

Initial Public Offering (IPO)

September 19, 2016

Fairchild Semiconductor Acquisition

Though there is a new look and feel, the company’s roots are foundational. In 1999, Motorola spun off its standard products semiconductor business into an independent company called ON Semiconductor. Motorola had been a pioneer in transistors, especially for commercial applications. In fact, a Motorola transponder relayed the first words from the moon to Earth in July 1969. Motorola also pioneered the automotive electronics industry, from the first mobile radios in police cars in the 1940s to automotive electric controls and semiconductors in the 1970s.

Fairchild Semiconductor

However, Motorola wasn’t the only industry pioneer to provide the foundation for the modern-day onsemi. In 2016, onsemi acquired Fairchild Semiconductor to become a top semiconductor manufacturer. Fairchild was founded in 1957 to build transistors out of silicon rather than the more common germanium.

1962 - onsemi and our ancestors have been changing the world for the last 60 years
1957 - The "Traitorous Eight" Develop a Method of Mass Producing Silicon Transistors

It also pioneered the planar process, making transistors more easily, at a lower cost, and with higher performance and reliability. This planar process led Fairchild to develop the first commercially viable integrated circuit in 1960, which became the foundation for many of the innovations we enjoy today.

Monolithic Integrated Circuit Patented

Industry’s first integrated circuit available as a monolithic chip

US Patent Office Issues Robert Noyce a Patent

April 25, 1961, Noyce Awarded Patent For "Integrated Circuit"

Our Acquisitions

Fairchild and Motorola served as the foundation for the technology industry that we know today. Almost every technology company currently in existence can trace its roots back to one of these pioneers. However, not only does onsemi combine the heritage of industry giants Motorola and Fairchild, but also Cherry Semiconductor, AMI Semiconductor, SANYO Semiconductor, Aptina Imaging Corporation, SensL Technologies and many others.

  • 2000

    Cherry Semiconductor


    LSI Logic Design and Manufacturing Facility Gresham, Oregon


    ADI Voltage Regulation and Thermal Management Group

  • 2008

    AMI Semiconductor


    Catalyst Semiconductor


    Pulsecore Semiconductor


    California Micro Devices


    Sound Design Technologies

  • 2011

    SANYO Semiconductor


    Cypress Image Sensor Business Unit

  • 2014

    Aptina Imaging Corporation


    Truesense Imaging, INC.



  • 2016

    Fairchild Semiconductor


    IBM mmWAVE Advanced Sensor Design Center

  • 2018

    SensL Technologies



  • 2021

    GT Advanced Technologies

Our Commitment

onsemi’s commitment to ethical, environmentally sustainable, and responsible business practices is unmatched, but don’t just take our word for it. Here are only a few of the latest awards that we have received for our efforts:

Most Sustainable Company

World Finance awarded onsemi its Most Sustainable Company in 2020 and 2021 in the semiconductor industry.

Ethisphere Recognition

Ethisphere’s has recognized onsemi with World’s Most Ethical Companies® for six years in a row.

Platinum Level Recognition

In 2020, EcoVadis awarded onsemi with its highest level of recognition, platinum.

Dow Jones Indexes

In December of 2020, onsemi was named to Dow Jones Sustainability Index for the third year in a row.

Most Sustainable Companies

onsemi was recognized on Barron’s 100 “Most Sustainable Companies” for four years in a row.

Responsible Business Alliance

onsemi is a full member of the Responsible Business Alliance.

Contact Us

We’re here to help! onsemi offers a variety of ways to contact support for your convenience.

Corporate Contacts


  • 5701 North Pima Road
  • Scottsdale, AZ 85250 USA

Phone Number

+1 (602)-244-6600