21–23 Jun 2021
Europe/Zurich timezone

Full-size passive CMOS sensors for radiation tolerant hybrid pixel detectors

Speaker

Yannick Manuel Dieter (University of Bonn (DE))

Description

CMOS process lines are an attractive option for the fabrication of hybrid pixel sensors for large-scale detectors like the ATLAS and CMS detectors. Besides the cost-effectiveness and high throughput of commercial CMOS lines, multiple features like poly-silicon layers, metal-insulator-metal capacitors and several metal layers are available to enhance the sensor design.

After an extensive R&D programme with several prototype sensors using the 150 nm LFoundry technology, passive CMOS pixel sensors have been manufactured for the first time as full-size sensors compatible with the RD53 readout chips.

This presentation will focus on IV-curve measurements and the characterization of the full-size sensors, before and after irradiation to fluences of $2×10^{15}$ neq/cm² and $5×10^{15}$ neq/cm², using a minimum ionising electron beam. The measured hit-detection efficiency after a fluence of $5×10^{15}$ neq/cm² is larger than 99 %.

Authors

Yannick Manuel Dieter (University of Bonn (DE)) Malte Backhaus (ETH Zurich (CH)) Michael Daas (University of Bonn (DE)) Jochen Christian Dingfelder (University of Bonn (DE)) Tomasz Hemperek (University of Bonn (DE)) Fabian Huegging (University of Bonn (DE)) Hans Krueger (University of Bonn) Anna Macchiolo (Universitaet Zuerich (CH)) Daniel Muenstermann (Lancaster University (GB)) David-Leon Pohl (University of Bonn (DE)) Tianyang Wang (University of Bonn (DE)) Norbert Wermes (University of Bonn (DE)) Pascal Wolf (University of Bonn (DE))

Presentation materials