Development of a Stitched Monolithic Pixel Sensor prototype (MOSS chip) towards the ITS3 upgrade of the ALICE Inner Tracking system. (1st January 2023)

• Record Type: Journal Article
• Authors: Vicente Leitao, P.; Aglieri Rinella, G.; Bugiel, S.; Cecconi, L.; de Melo, J.L.A.; De Robertis, G.; Deng, W.; Dorda Martin, A.; Dorosz, P.; Fang, X.; Gajanana, D.; Gromov, V.; Hodges, A.; Hong, G.H.; Kremastiotis, I.; Kugathasan, T.; Loddo, F.; Marras, D.; Matthew, S.; Morel, F.; Piro, F.; Pulli, A.; Sedgwick, I.; Snoeys, W.; Soudier, J.; Valin, I.; Yelkenci, A.
• Is Part Of: Journal of instrumentation. Volume 18:Number 1(2023)
• Publication Date: 2023-01-01
• Subjects: Solid state detectors -- VLSI circuits; Scientific apparatus and instruments -- Periodicals; 502.84
• DOI: 10.1088/1748-0221/18/01/C01044
• Languages: English
• ISSNs: 1748-0221

Abstract

Abstract: The MOnolithic Stitched Sensor (MOSS) is a development prototype chip towards the ITS3 vertexing detector for the ALICE experiment at the LHC. Designed using a 65 nm CMOS Imaging technology, it aims at profiting from the stitching technique to construct a single-die monolithic pixel detector of 1.4 cm × 26 cm. The MOSS prototype is one of the prototypes developed within the CERN-EP R&D framework to learn how to make stitched wafer-scale sensors with satisfactory yield. This contribution will describe some of the design challenges of a stitched pixel sensor and the techniques adopted during the development of this prototype.