Sunto Microelectronics (Suzhou) Co., Ltd. (STO) was established in 2018. STO is a professional semiconductor solution service provider, focusing on Assembly and Testing services, and providing customers with package design, simulation, assembly, testing and A complete solution for reliability testing.

STO focuses on packaging technology in various applications and has obtained a number of invention patents. After development in recent years, it has served many customers in the fields of mobile communication RF Front-end, Bluetooth, UWB, IoT sensor, Ethernet, AI, Power, etc., and established a complete assembly test service standard process to provide customers with high quality services. 

STO contributes to the accelerated growth and development of domestic semiconductors with the development concept of “Creating The Future with The IC", the service tenet of “Customer is Partner", and the corporate culture of “Better Work and Better Life”.