Modules and Others
Meeting detailed customer needs and contributing to solving social issues through “energy saving” and “miniaturization”
Products supplied by our business unit contribute to tackling carbon neutrality and other social issues. Resistors, ROHM’s founding product, have become an essential component in automotive equipment as the shift to EVs advances. We offer a wide lineup of high-reliability products for current detection applications and the automotive and industrial equipment fields. In the printhead business, we have leveraged our proprietary semiconductor process technologies to successfully develop thermal printheads that enable high-definition printing while realizing the speediest ultra-fast printing in the industry. We are now expanding our lineup of products for barcode label printers and are providing high-value-added products to the industrial equipment market.
Miniaturization of these products and enhancement of performance in module products lead to reductions in power consumption, component count, and mounting space in end equipment. We will constantly improve performance through continuous technological development and will contribute to “energy saving” and “miniaturization” for our customers, as outlined in our Management Vision.
Specifications for resistors required in fields such as the space industry will become increasingly strict, and the enhancement of performance and quality will become critical. Accordingly, for general-purpose products such as resistors, we must anticipate and grasp the needs of customers and must act ahead of other companies to tackle product development and bring new products to markets. At the same time, for highly customizable module products, we must also build relationships with customers and attentively address their needs. We believe in the need to advance business from an outward-facing perspective so that each of our organizations is always perceptive to even slight changes in markets.
Performance by segment
FY ending March 2024
-
■Modules
- 32.9billion yen
- 7.0%
-
■Others
- 25.7billion yen
- 5.5%
- ■ICs 207.2billion yen 44.3%
- ■Discrete Semiconductor Devices 201.9billion yen 43.2%
Sales
467.7billion yen
Sales by application
FY ending March 2024
-
Automotive
11.3%
-
Industrial
13.2%
-
Consumer
10.6%
-
Communication
18.1%
-
Computer &
Storage46.8%
Modules Net sales
32.9billion yen
-
Automotive
58.0%
-
Industrial
8.5%
-
Consumer
29.6%
-
Communication
0.5%
-
Computer & Storage
3.4%
Others Net sales
25.7billion yen
ROHM’s Position (2023)
Worldwide thermal printhead manufacturer sales share ranking
Worldwide resistor manufacturer sales share ranking
Key products

Print heads
These use ROHM’s proprietary semiconductor, thick-film printing, and thin-film deposition technologies, and are small, save energy, are high quality, and provide high image quality.

Sensor modules
ROHM can propose total solutions by combining the world’s top-level sensor variations with ROHM’s core technologies.

Resistors
One of the indispensable components in electric circuits, resistors work to ensure smooth operation of electric circuits. They provide high added value because they are high performance, highly reliable, and can be miniaturized.
TOPICS|
Toward the Realization of a Sustainable Society
Development of a thermal printhead capable of high-speed, clear printing on a single lithium-ion battery
In recent years, mobile label printers for logistics have grown in importance with the advancement of logistics, as have payment terminals with the proliferation of electronic money payments. Mobile thermal printers driven by two lithium-ion batteries have been the main type used, for reasons of printing speed and quality. However, the use of a single battery would make these printers more compact and lighter while also enabling energy saving. In December 2023, ROHM developed a thermal printhead that uses just one lithium-ion battery yet is capable of the print output of a two-battery unit.
In addition to radically revising the structure and optimizing the design of the heat storage layer, glaze, we adopted a special low-resistance heating element and changed the protective film structure on the heating element. This enables efficient transmission of generated heat to the thermal paper, transfer ribbon, or other printing media. Through improvements to the driver IC and wiring structure, we also enhanced the efficiency of the conversion of power supplied to the device to thermal energy, along with printing efficiency. Through simultaneous improvements to thermal transmission and power efficiency, we have achieved energy saving as well.