Patent ID: 7944010

Claim:
An electromagnetic wave detecting element comprising: a plurality of sensor portions, including: a semiconductor layer provided in correspondence with respective intersection portions of a plurality of scan lines and a plurality of signal lines that are disposed to intersect one another, the semiconductor layer generating charges due to irradiated electromagnetic waves, that express an image that is an object of detection, first electrodes formed by electrically-conductive members, that have transmittance with respect to the electromagnetic waves, at irradiation surface sides of the semiconductor layer to which the electromagnetic waves are irradiated, the first electrodes applying bias voltage to the semiconductor layer, second electrodes formed at non-irradiation surface sides of the semiconductor layer with respect to the electromagnetic waves, the second electrodes collecting the charges that are generated at the semiconductor layer, wherein one of the first electrodes is electrically connected to any other adjacent first electrode to form a group of sensor portions; a common electrode line, provided via the plurality of sensor portions and an insulating film, for supplying the bias voltage; and a plurality of contacts provided at the insulating film respectively per group of sensor portions whose first electrodes are electrically connected, and at each of the groups of sensor portions, the contact connects the common electrode line and the first electrode of any sensor portion belonging to that group of sensor portions, via a contact hole formed in the insulating film and at a connection place of a number that is less than a number of sensor portions belonging to that group of sensor portions.