IRIS (Integrated Radiation and Image Sensor) is a research unit in the Center for Materials and Microsystems (CMM) of FBK, counting about 30 people among researchers, technicians, and PhD students. We focus our research on the development of advanced solid-state sensors, using dedicated technology processes or state-of-the-art CMOS technologies, with special and fully customizable features. Single-photon avalanche diodes, silicon photomultipliers and strip detectors, custom image sensors and infrared and terahertz sensing devices are among the expertise of IRIS. Our solutions portfolio starts from the study and physical design of the sensor device, the tuning of the fabrication process and its implementation, the design and simulations of integrated electronics, up to the development of module- and system-level electronics and optics with complete electrical and optical characterization.