ROHM
A Kyoto-based semiconductor manufacturer supplying power devices, analog and power-management ICs, sensors, modules and electronic components for automotive, industrial and consumer systems.
Company Snapshot
- Founded
- 1958
- Headquarters
- 21 Saiin Mizosaki-cho, Ukyo-ku, Kyoto 615-8585, Japan
- Capital
- ¥86.969 billion
- Latest net sales
- ¥481.148 billionYear ended March 2026, consolidated net sales
- Primary focus
- SiC and silicon power devices
- Value-chain position
- Integrated device and component manufacturer
Head Office
21 Saiin Mizosaki-cho, Ukyo-ku, Kyoto 615-8585, Japan
Manufacturing Sites
- Kyoto — Kyoto City (headquarters and R&D)
- Shizuoka — Hamamatsu City (ROHM Hamamatsu)
- Fukuoka — Chikugo City (ROHM Apollo)
- Fukuoka — Yukuhashi City (ROHM Apollo)
- Okayama — Kasaoka City (ROHM Wako)
Company Overview
ROHM develops and manufactures integrated circuits, discrete semiconductor devices, modules and electronic components. Its semiconductor portfolio spans silicon carbide and silicon power devices, analog and power-management ICs, motor drivers, LEDs, laser diodes and sensors.
The group combines device design, process development, wafer fabrication, assembly and component technologies. It has invested heavily in SiC power semiconductors while maintaining broad exposure to automotive and industrial electronics.
ROHM is important because it connects power-device materials and wafer processing with analog control, modules and passive components. That breadth can support system-level power solutions, but SiC requires disciplined capacity, yield and cost management as electric-vehicle demand develops.
Technology & Products
SiC power devices
MOSFETs, Schottky barrier diodes and modules for high-efficiency conversion.
Silicon power devices
MOSFETs, diodes and related discrete products.
Analog and power ICs
Power management, motor control, LED drivers and signal-chain devices.
Sensors and optoelectronics
Sensor ICs, LEDs, laser diodes and optical components.
Modules
Power modules, printheads and optical modules.
Electronic components
Resistors and other high-reliability components.
Position in the Supply Chain
ROHM operates from device materials and wafer processes through packaged semiconductors and modules. Its products sit inside vehicle powertrains, industrial drives, power supplies and electronic control systems.
Strategic Position
The company is seeking growth in automotive and industrial power conversion while reforming its manufacturing footprint and improving returns from large SiC investments. Cross-selling ICs, power devices and components is a central strategic advantage.
Ecosystem Impact
ROHM anchors semiconductor activity in Kyoto and several regional manufacturing locations. Its fabs and assembly operations create demand for Japanese wafers, equipment, chemicals, ceramics, packaging and test services.
Outlook
Growth Drivers
- Vehicle electrification and charging infrastructure
- Renewable energy and data-center power conversion
- Industrial automation and efficient motor control
- Higher power-semiconductor content per system
Risks
- SiC price competition and slower-than-planned EV growth
- Large depreciation and impairment risk
- Automotive and industrial inventory cycles
- Execution of manufacturing restructuring
Key Points to Watch
- SiC utilization, yield and profitability
- Automotive design wins
- Capital spending discipline
- Recovery in analog and discrete demand
Official Sources
Editorial note: This independent profile is based primarily on company-published information. Business conditions and plans may change. SemiStructure is not affiliated with the company, and this page does not constitute investment advice.
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