SANTA CLARA, CA and Kyoto, Japan, Feb 28, 2025 – ROHM Semiconductor has announced the GNP2070TD-Z 650V GaN HEMTs in the TO-Leadless (TOLL) package. The TOLL package is being adopted in applications that require power handling, specifically inside industrial equipment and automotive systems, featuring a compact design with heat dissipation, high current capacity, and improved switching performance. For this launch, package manufacturing has been outsourced to ATX Semiconductor (Weihai) Co., Ltd. (hereinafter ATX), an experienced OSAT (Outsourced Semiconductor Assembly and Test) provider.
Boosting the efficiency of motors and power supplies is key to lowering global electricity use, which is essential for building a decarbonized society. New materials like Silicon Carbide (SiC) and Gallium Nitride (GaN) can significantly improve the performance of these power devices. Their adoption is expected to enhance power supply efficiency.
ROHM began mass production of its 1st generation 650V GaN HEMTs in April 2023, followed by the release of power stage ICs that combine a gate driver and 650V GaN HEMT in a single package. This time, ROHM has developed the product incorporating 2nd generation elements in a TOLL package and added it to the existing DFN8080 package to strengthen ROHM’s 650V GaN HEMT package lineup – meeting the market demand for even smaller and more efficient high-power applications.
The new products use 2nd generation GaN-on-Si chips in a TOLL package. They excel in performance in the device metric that links ON-resistance to output charge. This leads to smaller sizes and energy efficiency in power systems that need to handle high voltage and high-speed switching.
To achieve mass production, ROHM leveraged proprietary technology and expertise in device design, cultivated through a vertically integrated production system, to carry out design and planning. Under the collaboration announced in December 2024, front-end processes are carried out by Taiwan Semiconductor Manufacturing Company Limited (TSMC); back-end processes are handled by ATX. In addition, ROHM plans to partner with ATX to produce automotive-grade GaN devices.
To address the growing use of GaN devices in the automotive sector that is projected to speed up in 2026, ROHM will work on introducing automotive-grade GaN devices. This will be done by enhancing partnerships and boosting its development efforts.
Liao Hongchang, director and general manager, ATX said, “We are extremely pleased to have been entrusted with production by ROHM, a company renowned for its advanced manufacturing technologies and in-house production facilities that cover everything from wafer fabrication to packaging. We began technical exchanges with ROHM in 2017 and are currently exploring possibilities for deeper collaboration. This partnership was made possible due to ATX’s track record and technical expertise in the back-end manufacturing of GaN devices. Looking ahead, we also plan to collaborate on ROHM’s ongoing development of automotive-grade GaN devices. By strengthening our partnership, we aim to contribute to energy conservation across various industries and the realization of a sustainable society.”
Satoshi Fujitani, general Manager, AP production headquarters, ROHM Co., Ltd. said, “We are delighted to have successfully produced 650V GaN HEMTs in the TOLL package, achieving sufficient performance. ROHM not only offers standalone GaN devices but also provides power solutions that combine them with ICs, leveraging ROHM’s expertise in analog technology. The knowledge and philosophy cultivated in the design of these products are also applied to device development. Collaborating with OSATs such as ATX, that possess advanced technical capabilities, allows us to stay ahead in the rapidly growing GaN market while utilizing ROHM’s strengths to bring innovative devices to market. Going forward, we will continue to enhance the performance of GaN devices to promote greater miniaturization and efficiency in a variety of applications, contributing to enrich people’s lives.”
Application Examples
- Power supplies for servers, communication base stations, industrial equipment and more.
- AC adapters (USB chargers), PV inverters, ESS (Energy Storage System)
- Wide range of power supply systems with 500W to 1kW output power
Online Sales Information
- Sales Launch Date: December 2024
- Applicable Part No: GNP2070TD-ZTR
- The products will be available at DigiKey, Mouser and Farnell from March, and will also be offered at other online distributors as they become available.
EcoGaN Brand
This refers to ROHM’s new lineup of GaN devices, which contribute to energy conservation and miniaturization by maximizing GaN characteristics to achieve lower application power consumption, smaller peripheral components, and simpler designs requiring fewer parts.
Source: ROHM Semiconductor
About ROHM Semiconductor
ROHM Co., Ltd., established in 1958, is a Japanese electronics manufacturer headquartered in Kyoto, Japan. The company specializes in designing and producing various electronic components, including integrated circuits (ICs), semiconductors, and optoelectronics. ROHM serves multiple industries, such as automotive, industrial equipment, consumer electronics, and telecommunications. Their product portfolio encompasses monolithic ICs, power modules, transistors, diodes, light-emitting diodes (LEDs), and capacitors. As of 2017, ROHM reported annual revenues of approximately ¥352 billion. With a global presence, the company operates in regions including Asia, the Americas, and Europe, supplying high-quality electronic components to clients worldwide.
About ATX Semiconductor (Weihai) Co., Ltd.
ATX Semiconductor (Weihai) Co., Ltd. is a semiconductor and materials supplier headquartered in Weihai, Shandong Province, China. The company specializes in providing integrated services, including testing, packaging, assembly systems, and product delivery, catering to industries such as technology, electronic components, electronics, and semiconductors. Originally founded as Aimhigh, a Korean company, it was acquired by ASE Group in 2008 and later became part of the ATX Group, a globally recognized provider of IC assembly and testing services. ATX Semiconductor (Weihai) is known for its comprehensive turnkey solutions, including package design, assembly, testing, and product delivery. It serves diverse clients in the semiconductor industry as a leading company in next-gen semiconductor device development utilizing proprietary intellectual properties and core technologies. ATX has established close, long-term collaborative relationships with the world’s top 10 power device companies.
