Patent ID: 9184190
Filing Date: 2015-11-10
Classification: H01L

Abstract:
1. A photodiode array comprising: a plurality of avalanche photodiodes formed within a semiconductor substrate; quenching resistors which are connected in series to the respective avalanche photodiodes; a peripheral wiring which surrounds a region in which the plurality of avalanche photodiodes are formed; and a plurality of relay wirings which are electrically connected to the peripheral wiring, to respectively connect at least two places of the peripheral wiring, the photodiode array wherein a resistance value per unit length of the peripheral wiring is smaller than a resistance value per unit length of the relay wiring, one of an anode and a cathode of each of the avalanche photodiodes is electrically connected to any one of the relay wirings via the quenching resistor, and the other of the anode and the cathode of each of the avalanche photodiodes is electrically connected to another electrode provided on the semiconductor substrate.