The ATLAS Pixel detector is the inner- most substructure of the multi-purpose LHC ex- periment ATLAS at CERN and part of the track- ing system. The Pixel vertex system will consist of 1744 hybrid pixel modules, about 280 of them have been assembled at the University of Dortmund. This work provides a detailed description of the ATLAS Pixel module assembly procedure executed at the University of Dortmund. Effort had been put into the developement of a laboratory and testing environment to fulfill all technical demands of a se- rial production of fully efficent pixel modules
