Corporate Profile: onsemi (ON Semiconductor Corporation)
Overview
onsemi (legally ON Semiconductor Corporation) is a leading American semiconductor manufacturer headquartered in Scottsdale, Arizona. Originally founded in 1999 as a spin-off of Motorola?s Semiconductor Components Group, the company has evolved from a supplier of standard discrete components into a global leader in intelligent power and sensing technologies.
The company operates with a primary focus on the automotive and industrial end-markets, which currently represent the majority of its revenue. Following a major rebranding and strategic pivot in 2021, onsemi has positioned itself as a key enabler of global "megatrends," including vehicle electrification, advanced safety systems, sustainable energy grids, and industrial automation.
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Strategic Market Focus
1. Automotive Electrification and Safety
onsemi is a dominant supplier in the automotive sector, providing the critical silicon required for the transition from internal combustion engines to electric vehicles (EVs).
* Powertrain & Traction Inverters: Its Silicon Carbide (SiC) solutions are used to manage power in EV motors, significantly increasing range and charging speed.
* ADAS (Advanced Driver Assistance Systems): onsemi is the world leader in automotive image sensors, providing the "eyes" for backup cameras, surround-view systems, and autonomous driving modules.
* Vehicle Lighting: Providing intelligent LED drivers and controllers for adaptive front-lighting systems.
2. Sustainable Energy & Industrial Automation
The company provides the infrastructure for a greener planet and smarter factories.
* Energy Infrastructure: Solutions for solar inverters, energy storage systems (ESS), and EV charging stations.
* Factory Automation: Intelligent sensing and power modules for robotics, machine vision, and industrial motor control.
* 5G & Cloud Power: High-efficiency power management for the massive data centers required by AI and 5G telecommunications.
Primary Product Portfolios
onsemi organizes its vast array of products into three main business groups:
Power Solutions Group (PSG)
This group focuses on the efficient conversion and management of electricity. It is one of the world's largest suppliers of power components and modules.
* EliteSiC (Silicon Carbide): High-voltage MOSFETs and diodes that offer superior thermal performance and efficiency compared to traditional silicon.
* IGBTs and MOSFETs: Standard silicon power switches for various voltage ranges.
* Intelligent Power Modules (IPMs): Highly integrated modules that combine power switches with gate drivers for compact motor control.
Intelligent Sensing Group (ISG)
This group develops advanced sensors that allow machines to perceive their environment with high precision.
* CMOS Image Sensors: Industry-leading sensors with high dynamic range (HDR) and low-light performance for automotive and industrial cameras.
* Depth Sensing: LiDAR and Time-of-Flight (ToF) sensors for 3D mapping and object detection.
* Photodetectors: Silicon Photomultipliers (SiPM) and Single Photon Avalanche Diodes (SPAD) for medical imaging and high-end security.
Analog and Mixed-Signal Group (AMG)
This group provides the "glue" that connects sensors and power systems to the digital world.
* Gate Drivers: Essential components that sit between a controller and a power switch to ensure fast, reliable switching.
* Connectivity: Low-power Bluetooth (BLE) and other wireless protocols for IoT applications.
* Signal Conditioning: High-performance operational amplifiers, comparators, and interfaces.
Key Products and Technologies Table
| Category | Brand/Product | Key Application |
| :--- | :--- | :--- |
| Wide Bandgap | EliteSiC MOSFETs | EV Traction Inverters, Solar Inverters |
| Imaging | Hyperlux? Sensors | Automotive ADAS, Digital Cockpits |
| Connectivity | RSL15 MCU | Ultra-low power Secure IoT/Medical devices |
| Power Modules | APM Series | On-board chargers (OBC) for Electric Vehicles |
| Logic | Standard Logic | Universal building blocks for all electronics |
Manufacturing and Supply Chain Strategy
Unlike many "fabless" semiconductor companies, onsemi maintains a vertically integrated manufacturing model for its strategic technologies, particularly Silicon Carbide.
* End-to-End SiC: onsemi is one of the few companies in the world that handles the entire SiC lifecycle?from the growth of the raw SiC crystal to the fabrication of the wafers and the final assembly of the modules.
* Global Footprint: The company operates a network of front-end wafer fabrication plants and back-end assembly/test facilities across North America, Europe, and Asia (including major sites in the Czech Republic, South Korea, and the Philippines).
Sustainability and Future Outlook
onsemi is committed to reaching Net Zero emissions by 2040. Their strategy is built on providing the technology that helps others decarbonize. By making EV power systems more efficient and renewable energy grids more reliable, onsemi plays a foundational role in the global energy transition. With over 17,000 patents and a workforce of approximately 26,000 employees, the company remains at the forefront of the intelligent power and sensing revolution.
