Sensor array

摘要

An image sensor array includes a substrate (40) and an array of photo diode sensors (54) electrically interconnected to the substrate (40). The photo diode sensors (54) conduct charge at a rate proportional to the intensity of light received by the photo diode sensors (54). Guard diodes (52) forming a ring are located around the periphery of the array of photo diode sensors (54). Each guard diode (52) has a guard diode anode connected to a predetermined guard anode voltage (49) and a guard diode cathode connected to a static guard cathode voltage (50).