ROHM and UAES Open New SiC Lab in China

The two companies recently held an opening ceremony to celebrate their new joint laboratory for SiC power devices.

Japanese power electronics giant ROHM Semiconductor recently unveiled a new laboratory operated in partnership with United Automotive Electronic Systems Co. (or UAES), a leading automotive parts manufacturer in China with a dominant share in engine control units and powertrain systems.


UAES Deputy General Manager Guo Xiaolu (right) and  ROHM Semiconductor Chairman Raita Fujimura (left) exchange gifts at the opening ceremony for a new joint laboratory in Shanghai, China. Image courtesy of ROHM.

The new laboratory, located at UAES’s headquarters in Shanghai, will help expand the development of Silicon Carbide (SiC) power devices for automotive applications—a key market focus for both companies. Leaders from UAES and ROHM celebrated the new lab in an opening ceremony held in December.

The partnership initially began in 2015 to incorporate ROHM’s SiC power devices with UAES’s automotive products. UAES’s SiC-equipped automotive products entered mass production and were released earlier this year. 

The new lab contains equipment required for device and application evaluation in automotive applications such as onboard chargers and DC/DC converters. 

In a press release, UAES Deputy General Manager Guo Xiaolu said, “The establishment of this joint laboratory is a testament to the deepening relationship between our two companies, and we can look forward to further technical support through this new comprehensive facility.”

ROHM Power Device Business CSO and Senior Director Kazuhide Ino further commented that the company plans to continue building on its partnership with UAES to contribute to technical innovation in the automotive sector with power solutions centered on SiC.

ROHM’s existing SiC power device lineup includes SiC Schottky Barrier Diodes (commonly found in battery chargers for electric and hybrid vehicles and energy applications), SiC MOSFETs and SiC power modules. In early-November, the company released its BD9P series of DC/DC converters optimized for Advanced Driver Assistance System sensors, cameras, radars, and infotainment and instrument systems. Also in November, ROHM announced a new family of four AEC-Q100 qualified high side switch ICs for automotive applications. 

The automotive market is an essential focus for ROHM as it implements its new management and organizational strategy from March 2021 onwards. In its 2021 half-year presentation to investors, ROHM said it plans to release more product lineups and increase sales in several automotive areas, including air conditioner electric compressors, power control units, chargers, autonomous units, LED lighting and meter panels.

According to the presentation, sales in ROHM’s automotive segment are down 18.3% from the third quarter of 2020. Within the auto segment, infotainment fell by 7.5%, powertrain by 1.8%, ADAS by .8% and body products by 1.7% in the third quarter of 2021. Still, ROHM plans for auto sales to increase by 19% in the second half of the year, with high growth expected in its infotainment and powertrain products.