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Discrete Semiconductor Devices - Power Devices
Aiming for “ROHM of Power” with products that contribute to a decarbonized society
In addition to power devices using Si and SiC as materials, ROHM has also started mass production of GaN devices, and our strength lies in our diverse lineup including power modules, equipped with several of these devices, and our ability to pro-pose solutions which integrate sales promotion, support, and planning.
Power devices significantly contribute to the realization of carbon neutrality. They improve power conversion efficiency and contribute to energy savings for solar power generation, data centers, and charging stations in industrial equipment, and EV in-vehicle chargers, DC-DC converters, and traction invert-ers in automobiles.
In particular, for growing traction inverters, by replacing IGBTs with SiC MOSFETs, not only will battery costs decrease due to improvements in electricity consump-tion, but system cost reductions such as lighter wiring har-nesses and smaller inductors and capacitors are also expected.
In addition, we believe it is necessary to strengthen not only our device competitiveness but also deepen our under-standing of customer systems. It is important to enter the ecosystem which includes automobile manufacturers and Tier 1 manufacturers. Going forward, we hope to build com-prehensive relationships with each company and continue to be the power device manufacturer that is always chosen.
Performance by segment
FY ending March 2024
-
■Discrete Semiconductor Devices
- 201.9billion yen
- 43.2%
- ■ICs
207.2billion yen 44.3% - ■Modules
32.9billion yen 7.0% - ■Others
25.7billion yen 5.5%
Sales
467.7billion yen
Sales by application
FY ending March 2024
-
Automotive
54.3%
-
Industrial
21.9%
-
Consumer
13.3%
-
Communication
2.4%
-
Computer&Storage
8.1%
Discrete Semiconductor Devices Net sales
201.9billion yen
ROHM’s Position
Worldwide power device market
- Total market (2022)
- 25,920million U.S. dollars
Power transistors
- Total market (2022)
- 20,189million U.S. dollars
Power diodes
- Total market (2022)
- 4,738million U.S. dollars
Source: Omdia Competitive Landscaping Tool (CLT) 2022
Key products
SiC power devices
MOSFETs and SBDs convert power more efficiently than conventional Si material devices
Si power MOSFETs and IGBTs
They are used as core components of power and power supply systems and inverters to contribute to higher efficiency and energy conservation in a wide range of high-voltage and high-current applications.
Si power diodes
We offer a broad lineup of Schottky barrier diodes and fast recovery diodes, etc. to meet market needs.
TOPICS｜
Toward the Realization of a Sustainable Society
Vitesco Technologies and ROHM signed a long-term SiC power device supply partnership to contribute to the efficiency of EVs
In June 2023, ROHM signed a long-term supply partnership agreement regarding SiC power devices with Vitesco Technologies, a major manufacturer of modern drive technologies and electrification solu-tions. The transaction value is over one billion US dollars for the period from 2024 to 2030. The two companies have been conducting joint development since 2020, and as the initial result, Vitesco plans to start sup-plying its advanced inverters equipped with ROHM’s SiC power devices in 2024. Two major automobile manufacturers have already decided to incorporate the inverters into their electric vehicles (EV). SiC power devices are an extremely important item in EV inverter development. They are an important key technology which is required to be high-voltage compatible, and they help extend the cruising range and reduce the battery size through the effective use of electric energy. ROHM and Vitesco are deepen-ing their partnership to support high-efficiency EVs and rapid charging through SiC power devices.
