Patent ID: 8288837

Claim:
A semiconductor radiation detector device, comprising a bulk layer ( 103 ) of semiconductor material, and on a first surface of the bulk layer ( 103 ) in the following order: a modified internal gate layer ( 104 , 304 ) of semiconductor of second conductivity type, a barrier layer ( 105 ) of semiconductor of first conductivity type and pixel dopings ( 111 , 112 , 1331 , 1332 , 1333 , 1334 , 2206 ) of semiconductor of the second conductivity type, adapted to be coupled to at least one pixel voltage in order to create pixels corresponding to pixel dopings, characterised in that: the device comprises a first conductivity type first contact, said pixel voltage being defined as a potential difference between the pixel doping and the first contact, and the bulk layer ( 103 ) is of the first conductivity type.