Raimon Casanova: Development of Monolithic Pixel Detectors for ATLAS

Wednesday 17 Jun 2015, 13:00 → 14:00 Europe/Madrid

Seminar (IFAE)

Jelena Aleksic (IFAE), Joern Lange (IFAE Barcelona), Stefania Bordoni (IFAE)

Pixel detectors play a crucial role in the tracker of the ATLAS experiment. Currently devices are hybrid solutions, that is, the sensor pixels and the readout electronics are developed and produced separately and later interconnected. The assembly of both is made by bump-bonding which is very difficult and expensive. In addition, it limits the minimum pixel size as the minimum bump pitch is currently 50 µm, and it adds dead material. Depleted Monolithic Active Pixels (DMAPS) have emerged during the last years as a promising technology which might overcome these limitations thanks to the use of standard CMOS technologies and the possibility of integrating sensor and readout electronics in the same device. An intense R&D effort has been made with DMAPS based on HVCMOS technologies and thanks to the promising results obtained right now the first fully monolithic demonstrators for ATLAS are being developed. During this talk, a review of DMAPS for ATLAS and the implications of their use in the tracker will be given.