Test beam measurement of ams H35 HV-CMOS capacitively coupled pixel sensor prototypes with high-resistivity substrate



Benoit, M, Braccini, LS, Casanova, R, Cavallaro, E, Chen, HH, Chen, K, Di Bell, DFA, Ferrere, D, Frizzell, D, Golfing, T
et al (show 27 more authors) (2018) Test beam measurement of ams H35 HV-CMOS capacitively coupled pixel sensor prototypes with high-resistivity substrate. JOURNAL OF INSTRUMENTATION, 13 (12). P12009-P12009.

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Abstract

In the context of the studies of the ATLAS High Luminosity LHC programme, radiation tolerant pixel detectors in CMOS technologies are investigated. To evaluate the effects of substrate resistivity on CMOS sensor performance, the H35DEMO demonstrator, containing different diode and amplifier designs, was produced in ams H35 HV-CMOS technology using four different substrate resistivities spanning from 80-1000 ohm cm -1 . A glueing process using a high-precision flip-chip machine was developed in order to capacitively couple the sensors to FE-I4 Readout ASIC using a thin layer of epoxy glue with good uniformity over a large surface. The resulting assemblies were measured in beam test at the Fermilab Test Beam Facilities with 120 GeV protons and CERN SPS H8 beamline using 180 GeV pions. The in-time efficiency and tracking properties measured for the different sensor types are shown to be compatible with the ATLAS ITk requirements for its pixel sensors.

Item Type: Article
Uncontrolled Keywords: Analogue electronic circuits, Electronic detector readout concepts (solid-state), Front-end electronics for detector readout, VLSI circuits
Depositing User: Symplectic Admin
Date Deposited: 05 Dec 2019 17:48
Last Modified: 19 Jan 2023 00:13
DOI: 10.1088/1748-0221/13/12/P12009
Open Access URL: https://doi.org/10.1088/1748-0221/13/12/P12009
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3065054