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ON Semiconductor Corporation

Founders

Who Founded onsemi?

Motorola Semiconductor Products Sector · Founded 1999 · HQ today: Scottsdale, Arizona, United States

Who founded onsemi?

onsemi was founded by Motorola Semiconductor Products Sector in 1999. It is now led by Hassane El-Khoury.

Founders
Motorola Semiconductor Products Sector
Founded
1999
Headquarters
Scottsdale, Arizona, United States
Number of founders
1
Current CEO
Hassane El-Khoury (since 2020)
Where was onsemi founded?
onsemi was founded in Phoenix, Arizona, United States in 1999.
When was onsemi founded?
onsemi was founded in 1999.
Who started onsemi?
onsemi was founded by Motorola Semiconductor Products Sector.
How old is onsemi?
onsemi is 27 years old as of 2026.

Founding Story

onsemi began on August 4, 1999, when Motorola spun off its Semiconductor Components Group in a buyout led by Texas Pacific Group. It listed on Nasdaq in 2000 and grew through acquisitions including AMI Semiconductor (2008), SANYO Semiconductor (2011), Aptina Imaging (2014) and Fairchild Semiconductor (2016). Hassane El-Khoury became CEO in December 2020, the company rebranded as onsemi in 2021 and refocused on power and sensing for automotive and industrial markets.

Background

ON Semiconductor was not founded by an individual entrepreneur but spun off from Motorola Corporation's Semiconductor Products Sector (SPS) in 1999. Motorola SPS was established in 1955 and had invented the 6800 microprocessor in 1974, developed the PowerPC processor, and created the first integrated RF transceiver. The spin-off created a standalone company with a broad portfolio of discrete, analog, and mixed-signal semiconductor products and manufacturing facilities across the United States, Europe, and Asia. The decision to spin off SPS reflected Motorola's strategic focus on communications equipment and the recognition that the semiconductor division could unlock more value as an independent entity.

Role at ON Semiconductor Corporation

ON Semiconductor possesses a complex, bureaucratic founding story, representing a strategic corporate unbundling executed by one of the most historic, foundational leaders of the American electronics industry. The foundational DNA of the company traces entirely back to the well-known Motorola Corporation. During the 1950s and 60s Motorola was a dominant pioneer in early solid-state electronics, famously producing some of the world's very first commercially viable transistors for advanced radios and televisions. However, by the late 1990s Motorola was a bloated, complex conglomerate. It was heavily trying to dominate the rapid, lucrative mobile phone market (famously building the well-known StarTAC). The semiconductor division, which manufactured basic, commoditized analog chips, was seen as a distractive drag on the glamorous wireless business. In 1999, Motorola executed a strategic decision: they spun off the unglamorous Semiconductor Components Group into an independent company. Heavily orchestrated by private equity firm Texas Pacific Group (TPG), the new company was heavily branded as ON Semiconductor. While its initial corporate structure was debt-laden and burdened by inefficient legacy Motorola factories, it possessed foundational engineering expertise. By severing ties with the distracting consumer electronics business, ON Semiconductor was forced to forge its own gritty, specialized path, ultimately establishing the focused infrastructural architecture it heavily utilizes today.

ON Semiconductor Corporation: CEO & Leadership History

Full timeline →

Thad Trent

EVP, Chief Financial Officer and Treasurer

2021 – Present

As CFO, he executes the strict capital allocation strategy designed to shift the company away from low-margin commodity chips toward highly lucrative automotive power modules.

Hassane El-Khoury

President and Chief Executive Officer

2020 – Present

Former Cypress Semiconductor CEO who refocused onsemi on automotive and industrial power and sensing from December 2020.

Simon Keeton

Group President, Power Solutions Group

2007 – Present

As Executive VP of the Power Solutions Group, he oversees the absolute core profit engine of the company, specifically targeting the electric vehicle inverter market.

Keith D. Jackson

Chief Executive Officer

2002 – 2020

Serving as CEO from 2002 to 2020, he built the massive, highly diversified foundation of the company before handing it over to Hassane El-Khoury for the final premium pivot.

Keep researching onsemi

Who Founded onsemi? FAQ

Who founded onsemi?

No individual founder: onsemi was created in 1999 when Motorola spun off its Semiconductor Components Group in a buyout led by Texas Pacific Group.

Who was onsemi's first CEO?

Steve Hanson, a Motorola semiconductor executive, led the company from the 1999 spin-off until Keith Jackson took over in 2002.

Where was onsemi originally based?

The company started in Phoenix, Arizona, and is now headquartered in Scottsdale, Arizona.

Who was Steve Hanson and what was his role as onsemi's inaugural CEO?

Steve Hanson served as the founding Chief Executive Officer of ON Semiconductor from its 1999 spinoff until 2002. A 28-year Motorola veteran, Hanson led the company through its transition into an independent public entity and navigated the harsh 2001 dot-com semiconductor collapse.

What role did Texas Pacific Group (TPG Capital) play in creating onsemi?

Private equity firm Texas Pacific Group (TPG) provided the financial backing for the $1.6 billion leveraged buyout from Motorola in 1999, taking a majority equity stake and installing disciplined operational and cost-containment frameworks before taking the company public in April 2000.

What Motorola legacy technologies formed the bedrock of onsemi's product portfolio?

onsemi inherited Motorola's world-renowned portfolios of standard bipolar analog circuits, operational amplifiers, discrete transistors, diodes, Zener diodes, and low-dropout regulators (LDOs) developed over five decades in Phoenix, Arizona.

Where did onsemi establish its initial manufacturing facilities?

At its 1999 inception, onsemi operated six manufacturing plants globally, including primary wafer fabrication in Phoenix, Arizona, and assembly/test facilities in Seremban (Malaysia), Carmona (Philippines), Roznov (Czech Republic), and Guadalajara (Mexico).

How did onsemi's corporate identity evolve from Motorola's component arm?

Initially seen as a low-margin commodity supplier, onsemi systematically shifted capital over two decades into specialized intellectual property, automotive reliability engineering, and power management solutions, shedding its commodity identity.

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Content is for informational purposes only. Not financial advice. Data sourced from SEC filings, annual reports, and public records. See our full disclaimer and methodology.