Design and fabrication of sensor prototypes for the end-cap tracker of the ATLAS upgrade

For the ATLAS Phase II Upgrade, new silicon microstrip sensors located in the End-cap part of the Inner detector, will bring new issues related to their complex design. In order to investigate the End-cap Upgrade specific problems, the petalet prototype was defined as a small End-cap prototype. The software tools developed in this work for the automatic generation of microelectronic sensor layouts are very helpful for these developments and allow us to face these design difficulties. New layout and technological solutions have been designed and implemented. Sensors have been fabricated and first test results are presented.