Duogantech

Duogantech (多感科技) is a fabless semiconductor company specializing in miniaturized optoelectronic sensor chips and systems, founded by CEO Wang Teng . Its product line has expanded from its debut ultra-thin optical fingerprint sensor for full-screen smartphones—developed to address the form-factor demands of the mobile industry's shift to bezel-less displays—into multi-spectral sensors, CMOS image sensors, and optical tracking chips . In 2024, the company developed the MOT6601, an optical tracking sensor roughly the size of a sesame seed now used in smartwatches and smart glasses for human-machine interaction . Duogantech's supply chain is fully domestic Chinese, and its chips have shipped to over one hundred customer device programs across consumer electronics, smart terminals, and research institutions . FreeS Fund led its angel round in 2019 and has continued to back the company through a strategic funding round in 2025 co-invested by Xinwei Capital and Anhui Guokong .