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Hamburg 2016 – scientific programme

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T: Fachverband Teilchenphysik

T 72: Halbleiterdetektoren IV (MAPS, CMOS)

T 72.9: Talk

Wednesday, March 2, 2016, 18:50–19:05, VMP8 HS

A passive CMOS pixel sensor for the high luminosity LHCMichael Daas1, Laura Gonella1, Tomasz Hemperek1, Fabian Hügging1, Jens Janssen1, Hans Krüger1, Anna Macchiolo2, •David-Leon Pohl1, and Norbert Wermes11Physikalisches Institut der Universität Bonn — 2Max-Planck-Institut für Physik in München

The high luminosity upgrade for the Large Hadron Collider at CERN requires a new inner tracking detector for the ATLAS experiment. About 200 m2 of silicon detectors are needed demanding new, low cost hybridization- and sensor technologies. One promising approach is to use commercial CMOS technologies to produce the passive sensor for a hybrid pixel detector design.

In this talk a fully functional prototype of a 300 um thick, backside biased CMOS pixel sensor in 150 nm LFoundry technology is presented. The sensor is bump bonded to the ATLAS FE-I4 with AC and DC coupled pixels. Results like leakage current, noise performance, and charge collection efficiency are presented and compared to the actual ATLAS pixel sensor design.

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