Patent ID: 8669630
Filing Date: 2014-03-11
Classification: H01L

Abstract:
1. A detection device comprising: a semiconductor substrate of a first conductivity type, a matrix of photodiodes organized along a first organization axis with a repetition pitch, each photodiodes comprising a first electrode formed by an area of a second conductivity type opposite from the first conductivity type and a second electrode formed by the semiconductor substrate, a peripheral biasing ring disposed around the photodiode matrix, and connected to a bias voltage generator to apply a bias voltage to the semiconductor substrate, a contact arranged between two photodiodes in the alignment of the first organization axis, the contact being separated from the two photodiodes along the first organization axis by the repetition pitch so that the contact replaces a photodiode, wherein the contact comprises: a conducting bump arranged on the semiconductor substrate and connected to the bias voltage generator to apply the bias voltage to the substrate, a first area of first conductivity type configured to perform passage of the charges between the conducting bump and semiconductor substrate, a second area of second conductivity type arranged to be in contact with the conducting bump.