Method for manufacturing a pixel array of a thermal pattern sensor, the method comprising the following steps: - providing a substrate (S); - forming (E1) a first layer of electrically conductive material, comprising: • a deposit of electrically conductive tracks extending in a first direction of elongation; • a deposit of connection lugs, extending from the tracks, in a second direction of elongation, different from the first direction of elongation, and heading towards a first edge of the substrate (S), called the exit edge; • a deposit of a ground strip intended to form the ground of the sensor; - forming (E2) a second layer of pyroelectric material covering the tracks and leaving at least one part of the connection lugs free; - forming (E3) a third layer of electrically conductive material deposited astride the layer of pyroelectric material and the ground strip without covering the free part of the connection lugs; - forming (E4) a fourth layer of dielectric material and extending across the tracks of the first layer; - depositing (E5) a fifth layer comprising electrically conductive heater tracks, said electrically conductive heater tracks extending from the ground strip towards the first edge of the substrate (S) so as to be above the tracks of the first layer; - depositing (E6) a sixth layer of protection; manufacturing method characterised in that the deposit of the second layer and/or the deposit of the third layer and/or the deposit of the fourth layer and/or the deposit of the sixth layer is implemented by liquid deposit by means of a slot die. - providing a substrate (S); - forming (E1) a first layer of electrically conductive material, comprising: • a deposit of electrically conductive tracks extending in a first direction of elongation; • a deposit of connection lugs, extending from the tracks, in a second direction of elongation, different from the first direction of elongation, and heading towards a first edge of the substrate (S), called the exit edge; • a deposit of a ground strip intended to form the ground of the sensor; • a deposit of electrically conductive tracks extending in a first direction of elongation; • a deposit of connection lugs, extending from the tracks, in a second direction of elongation, different from the first direction of elongation, and heading towards a first edge of the substrate (S), called the exit edge; • a deposit of a ground strip intended to form the ground of the sensor; - forming (E2) a second layer of pyroelectric material covering the tracks and leaving at least one part of the connection lugs free; - forming (E3) a third layer of electrically conductive material deposited astride the layer of pyroelectric material and the ground strip without covering the free part of the connection lugs; - forming (E4) a fourth layer of dielectric material and extending across the tracks of the first layer; - depositing (E5) a fifth layer comprising electrically conductive heater tracks, said electrically conductive heater tracks extending from the ground strip towards the first edge of the substrate (S) so as to be above the tracks of the first layer; - depositing (E6) a sixth layer of protection; <EOS>