System and method for extending near-infrared spectral response on imaging system

摘要

One novel aspect includes an IR sensor having an array of sensor pixels for converting light into current, wherein each sensor pixel of the array focuses a light detector region and light to the light detector region. A configured lens, such that the light is propagated through the lens and into the photodetector region, the lens adjacent to the photodetector region, and the photodetector region positioned between the substrate and the lens And a substrate having one or more transistors formed therein. The sensor is positioned between at least a portion of the substrate and at least a portion of the photodetector area, and at least a portion of the photodetector area is positioned between the one or more reflective structures and the lens. A reflective structure positioned in such a manner that includes one or more reflective structures configured to reflect light that has passed through at least a portion of the photodetector region into the photodetector region.