Development of Depleted Monolithic Active Pixel Sensors for High Energy Physics Experiments



Zhang, Chenfan ORCID: 0000-0001-6135-3131
(2021) Development of Depleted Monolithic Active Pixel Sensors for High Energy Physics Experiments. PhD thesis, University of Liverpool.

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Abstract

Monolithic pixel detectors have attracted increasing interest in the HEP community, because of their advantages over the traditional hybrid detectors in terms of manufacture cost, fabrication simplicity and detector thickness. The DMAPS (Depleted Monolithic Active Pixel Sensors) variant has the additional benefits of good radiation tolerance and fast charge collection speed, and is therefore a promising candidate as the tracking detector in future HEP experiments. This thesis presents the author’s PhD research on the development of DMAPSdetectors. Three DMAPS prototype chips using a commercial 150 nm HV-CMOS process have been designed by the author and are described in detail. The achievements in those chips include low leakage current (< pA/pixel, pixel area is 3600μm^2), high breakdown voltage (> 130 V) and fast readout electronics. A novel asynchronous switched reset scheme is proposed to be able to reduce the response time of the analog front-end to below 50 ns.

Item Type: Thesis (PhD)
Divisions: Faculty of Science and Engineering > School of Physical Sciences
Depositing User: Symplectic Admin
Date Deposited: 29 Mar 2022 13:56
Last Modified: 18 Jan 2023 21:11
DOI: 10.17638/03149533
Supervisors:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3149533