SiMPl—Novel high QE photosensor

A silicon photomultiplier (SiPM) is an avalanche photodetector that is entering many application area as a replacement of conventional photomultiplier tubes (PMTs). Its Geiger mode operation requires high ohmic polysilicon as the quench resistor that becomes an obstacle for light and is one of the most cost driving technological issues. We propose a new detector concept which has the quench resistor integrated into the silicon bulk. Extensive simulation results that show the feasibility of the concept will be presented. The advantages and disadvantages of this detector structure will be discussed.