Integrated Si-based Opto-Couplers: a Novel Approach to Galvanic Isolation

In many applications the need of galvanic isolation for safety or functional requirements is very high. In this paper a new isolated opto-coupler device concept is presented. Our approach combines an isolation technology with the integration of a silicon-based optical transmission system. This new concept enhances design, flexibility, performances and reliability of the devices, resulting in space and cost saving. In the first section two isolation technologies will be presented. Subsequently, the transmission system will be elucidated. At last a case of application in the field of power devices will be presented.