A sensor board for a detector module is disclosed. It includes, in a stack construction, at least one reader unit and a sensor layer arranged spaced from the reader unit in the direction of the stack. A gap formed by the spacing between the sensor layer and the reader unit is filled with a cured filling material such that at least one edge region of the sensor layer is free of the filling material. Furthermore, a method is disclosed for manufacturing a corresponding sensor board, and a detector module is disclosed for an X-ray detector having a number of sensor boards which are arranged to be mutually adjacent on a module carrier.