Radiation detector

A method of manufacturing a radiation detector having a radiation sensitive surface, the method comprising:

• providing a planar substrate, the substrate showing an n-doped plane and an intrinsic layer formed on the n-doped plane;
• of depositing a top layer comprising boron on the intrinsic layer, thereby forming a p+-type diffusion layer between the intrinsic layer and the top layer comprising boron;
• forming a first electrode comprising a grid of conductive material, at least part of the grid formed on the top layer, said grid electrically connected to the top layer while leaving part of the top layer exposed, wherein the grid of conductive material of the first electrode is formed by covering the top layer completely with a layer of conductive material and then removing part of the layer of conductive material by etching, the etching comprising a first step of dry etching, the step of dry etching defining the grid but leaving a thin layer of conductive material on the part of the top layer to be exposed, followed by a second step of wet etching, the step of wet etching completely removing the conductive layer from the part of the top layer to be exposed;
• and
• forming a second electrode connected with the n-doped plane.