TY - JOUR
T1 - Characterization of the RD50-MPW4 HV-CMOS pixel sensor
AU - Pilsl, B.
AU - Bergauer, T.
AU - Casanova, R.
AU - Handerkas, H.
AU - Irmler, C.
AU - Kraemer, U.
AU - Marco-Hernandez, R.
AU - Mazorra de Cos, J.
AU - Palomo, F. R.
AU - Powell, S.
AU - Sieberer, P.
AU - Sonneveld, J.
AU - Steininger, H.
AU - Vilella, E.
AU - Wade, B.
AU - Zhang, C.
AU - Zhang, S.
N1 - Publisher Copyright:
© 2024 Elsevier B.V.
PY - 2024/12
Y1 - 2024/12
N2 - The RD50-MPW4 is the latest HV-CMOS pixel sensor from the CERN-RD50-CMOS working group, designed to evaluate the HV-CMOS technology in terms of spatial resolution, radiation hardness and timing performance. Fabricated by LFoundry using a 150 nm process, it features an improved architecture to mitigate crosstalk, which has been an issue with the predecessor RD50-MPW3, allowing more sensitive threshold settings and full matrix operation. Enhancements include separated power domains for peripheral and in-pixel digital readout, a new backside-biasing process step, and an improved guard ring structure supporting biasing up to 500 V, significantly boosting radiation hardness. Laboratory measurements and test beam results presented in this paper show significant improvements over its predecessor regarding noise behavior, spatial resolution, and efficiency.
AB - The RD50-MPW4 is the latest HV-CMOS pixel sensor from the CERN-RD50-CMOS working group, designed to evaluate the HV-CMOS technology in terms of spatial resolution, radiation hardness and timing performance. Fabricated by LFoundry using a 150 nm process, it features an improved architecture to mitigate crosstalk, which has been an issue with the predecessor RD50-MPW3, allowing more sensitive threshold settings and full matrix operation. Enhancements include separated power domains for peripheral and in-pixel digital readout, a new backside-biasing process step, and an improved guard ring structure supporting biasing up to 500 V, significantly boosting radiation hardness. Laboratory measurements and test beam results presented in this paper show significant improvements over its predecessor regarding noise behavior, spatial resolution, and efficiency.
KW - CERN-RD50
KW - DMAPS
KW - HV-CMOS
KW - RD50-MPW
UR - http://www.scopus.com/inward/record.url?scp=85203808338&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/8d2f2587-b4d8-3f9e-ac7b-53a24a7f49b7/
U2 - 10.1016/j.nima.2024.169839
DO - 10.1016/j.nima.2024.169839
M3 - Article
AN - SCOPUS:85203808338
SN - 0168-9002
VL - 1069
JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
M1 - 169839
ER -