ON Semiconductor Corporation (operating as onsemi) develops and manufactures intelligent power and sensing solutions. Originating as a 1999 spin-off of Motorola's Semiconductor Components Group, the company has evolved through internal development and key acquisitions (including Fairchild Semiconductor in 2016 and GT Advanced Technologies in 2021) into a major supplier of discrete, analog, and power semiconductor solutions.
The company operates through three principal business segments:
1. Power Solutions Group (PSG): Generates roughly 47% to 54% of total revenue. PSG designs and manufactures discrete, module, and integrated semiconductor products, including silicon carbide (SiC) MOSFETs, insulated gate bipolar transistors (IGBTs), diodes, and power modules for power switching and conversion.
2. Analog and Mixed-Signal Group (AMG): Generates approximately 30% to 37% of revenue. AMG develops analog, mixed-signal, power management ICs, gate drivers, sensor interfaces, and power conversion devices for high-efficiency power delivery and communication.
3. Intelligent Sensing Group (ISG): Contributes approximately 15% to 16% of revenue, designing complementary metal-oxide-semiconductor (CMOS) image sensors, image signal processors, and optical sensing solutions used broadly in automotive safety systems (ADAS), industrial machine vision, and edge computing.
onsemi operates a hybrid "Fab Right" manufacturing model utilizing both internal fabrication facilities (including wide-bandgap silicon carbide substrate manufacturing and wafer fabs in the United States, Czech Republic, and South Korea) and outsourced foundry/packaging partners. Its geographic footprint is global, with sales distributed across the Americas, Europe, and the Asia-Pacific region.
