Abstract: An array of photodiodes includes regions of a second conductivity type formed in a semiconductive region of a first conductivity type, divided into three interleaved sub-arrays. All the photodiodes of a same sub-array are coated with a same interference filter including at least one insulating layer of determined thickness coated with at least one conductive layer. According to the present invention, the conductive layers are electrically connected to the semiconductive region of a first conductivity type.

Abstract: A method for forming a component in a portion of a semiconductor substrate on insulator delimited by a lateral wall separated by an insulating layer from a peripheral region internal to the portion and heavily doped of a same first conductivity type as the substrate. A conductive plate is formed at the same time as the wall, on a layer of protection of the substrate surface, in electric contact with the peripheral region, the plate extending above said peripheral region towards the inside of the portion with respect to the wall, beyond the location above the limit between the peripheral region and the substrate.