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Contribution to a conference proceedings/Journal Article | PUBDB-2024-07834 |
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2024
North-Holland Publ. Co.
Amsterdam
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Please use a persistent id in citations: doi:10.1016/j.nima.2024.169132 doi:10.3204/PUBDB-2024-07834
Report No.: arXiv:2309.16358
Abstract: In the passive CMOS Strips Project, strip sensors were designed at the University of Bonn and produced by LFoundry in 150 nm technology, with an additional backside processing from IZM Berlin. Up to five individual reticules were connected by stitching at the foundry in order to obtain the typical strip lengths required for the LHC Phase-II upgrade of ATLAS or CMS trackers. Sensors electrical properties were simulated using Sentaurus TCAD and the results were compared to experimentally measured data. Detector modules were also constructed from several sensors and thoroughly studied in two beam campaigns at DESY. All of these measurements were performed before and after irradiation. This contribution provides an overview of simulation results, its comparison to measured data and in particular presents first test beam results for irradiated and unirradiated passive CMOS strip sensors. We are demonstrating that large area sensors with sufficient radiation hardness can be obtained by stitching during the CMOS process, and presenting our plans for the next submission in the framework of this project.
Keyword(s): ATLAS ; radiation: damage ; semiconductor detector: microstrip ; irradiation ; tracking detector: upgrade ; CMS ; performance ; efficiency ; numerical calculations ; charge: yield ; electric field: spatial distribution ; Particle tracking detectors ; Radiation damage to detector materials ; Radiation-hard detectors ; Solid state detectors
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