Suzhou Dawning Semi Technology Co., Ltd.

Based in Suzhou, China and founded in 2020, Suzhou Dawning Semi Technology Co. , Ltd. operates as a silicon photonics technology platform that provides optical engines, optical modules and embedded optical engines. The company is headquartered in Suzhou and has R&D centers in Shanghai and Berlin.

The core research team has more than 10 years of working experience in the fields of semiconductors, optical communication and investment and financing. In October 2021, it acquired a full ownership stake in Sicoya GmbH. In February 2023, Hubei Jiufengshan Laboratory became the strategic partner of the company. In April 2026, Suzhou Dawning Semi Technology Co.

, Ltd. closed Series D funding from Suzhou Yongxin Fangzhou Investment, Lanqi Invesment, Shanghai Zhezhong Group, Zhuiyuan Venture Investment , Shenzhen Capital Real Estate Fund, Infore Management. The company developed silicon photonics core technologies, covering the development, design, tape-out, and manufacturing of chips, engines and modules. Its package testing adopts automated production from chip level to module level.

Products include optical engines, optical modules and embedded optical engines. Optical engines include 25G front haul,400G DR4 engine and 100G PSM4 Engine and it can apply in the data center, 5G and interconnection. Optical modules include 400G FR4, 400G ZR and 800G DR8. Embedded optical engines provide customized solutions for high-density systems.

The company generates revenue from developing silicon photonics technology platform.