TY - JOUR AU - Benitez, V. et al AU - Bernabeu, J. AU - Garcia, C. AU - Lacasta, C. AU - Marco, R. AU - Rodriguez, D. AU - Santoyo, D. AU - Solaz, C. AU - Soldevila, U. PY - 2016 DA - 2016// TI - Sensors for the End-cap prototype of the Inner Tracker in the ATLAS Detector Upgrade T2 - Nucl. Instrum. Methods Phys. Res. A JO - Nuclear Instruments & Methods in Physics Research A SP - 226 EP - 232 VL - 833 PB - Elsevier Science Bv KW - Silicon radiation detectors KW - Strip sensors KW - HL-LHC KW - ATLAS Upgrade KW - Inner Tracker (ITk) KW - End-cap AB - The new silicon microstrip sensors of the End-cap part of the HL-LHC ATLAS Inner Tracker (ITk) present a number of challenges due to their complex design features such as the multiple different sensor shapes, the varying strip pitch, or the built-In stereo angle. In order to investigate these specific problems, the "petalet" prototype was defined as a small End-cap prototype. The sensors for the petalet prototype include several new layout and technological solutions to investigate the issues, they have been tested in detail by the collaboration. The sensor description and detailed test results are presented in this paper. New software tools have been developed for the automatic layout generation of the complex designs. The sensors have been fabricated, characterized and delivered to the institutes in the collaboration for their assembly on petalet prototypes. This paper describes the lessons learnt from the design and tests of the new solutions implemented on these sensors, which are being used for the full petal sensor development. This has resulted in the ITIc strip, community acquiring the necessary expertise to develop the full End-cap structure, the petal. SN - 0168-9002 UR - https://doi.org/10.1016/j.nima.2016.07.023 DO - 10.1016/j.nima.2016.07.023 LA - English N1 - WOS:000383818200032 ID - Benitez_etal2016 ER -