The H2M Monolithic Active Pixel Sensor — characterizing non-uniform in-pixel response in a 65 nm CMOS imaging technology
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| Názov: | The H2M Monolithic Active Pixel Sensor — characterizing non-uniform in-pixel response in a 65 nm CMOS imaging technology |
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| Autori: | Ruiz Daza, Sara, Ballabriga, Rafael, Gadow, Paul Philipp, Gregor, Ingrid-Maria, Hansen, Karsten, He, Yajun, Huth, Lennart, Kremastiotis, Iraklis, Lemoine, Corentin, Maffessanti, Stefano, Mendes, Larissa, Otarid, Younes, Buschmann, Eric, Reckleben, Christian, Rettie, Sébastien, Viera, Manuel Alejandro del Rio, Schlaadt, Judith, Simancas, Adriana, Snoeys, Walter, Spannagel, Simon, Vanat, Tomas, Velyka, Anastasiia, Vignola, Gianpiero, Campbell, Michael, Wennloef, Hakan Lennart Olov, Mohr, Raimon Casanova, Dannheim, Dominik, Dilg, Jona, Dorda, Ana, King, Finn, Feyens, Ono |
| Zdroj: | Journal of Instrumentation 20(06), C06037 (2025). doi:10.1088/1748-0221/20/06/C06037 ; Eleventh International Workshop on Semiconductor Pixel Detectors for Particles and Imaging , (PIXEL), Strasbourg, France, 2024-11-18 - 2024-11-22 |
| Informácie o vydavateľovi: | Inst. of Physics |
| Rok vydania: | 2025 |
| Zbierka: | DESY Publication Database (PUBDB) |
| Predmety: | info:eu-repo/classification/ddc/610 |
| Geografické téma: | DE |
| Popis: | The high energy physics community recently gained access to the TPSCo 65 nm ISC (Image Sensor CMOS), which enables a higher in-pixel logic density in monolithic active pixel sensors (MAPS) compared to processes with larger feature sizes. To explore this novel technology, the Hybrid-to-Monolithic (H2M) test chip has been designed and manufactured. The design followed a digital-on-top design workflow and ports a hybrid pixel-detector architecture, with digital pulse processing in each pixel, into a monolithic chip. The chip matrix consists of 64×16 square pixels with a size of 35×35 μm2, and a total active area of approximately 1.25 mm2. The chip has been successfully integrated into the Caribou DAQ system. It is fully functional, and the measured threshold dispersion and noise agree with the expectation from front-end simulations. However, a non-uniform in-pixel response related to the size and location of the n-wells in the analog circuitry has been observed in test beam measurements and will be discussed in this contribution. This asymmetry in the pixel response, enhanced by the 35 μm pixel pitch — larger than in other prototypes — and certain features of the readout circuit, has not been observed in prototypes with smaller pixel pitches in this technology. |
| Druh dokumentu: | conference object |
| Jazyk: | English |
| Relation: | info:eu-repo/semantics/altIdentifier/issn/1748-0221; info:eu-repo/semantics/altIdentifier/arxiv/arXiv:2502.06573; info:eu-repo/grantAgreement/EC//101004761 |
| Dostupnosť: | https://bib-pubdb1.desy.de/record/623232 https://bib-pubdb1.desy.de/search?p=id:%22PUBDB-2025-00664%22 |
| Rights: | info:eu-repo/semantics/openAccess |
| Prístupové číslo: | edsbas.4973CAED |
| Databáza: | BASE |
Nájsť tento článok vo Web of Science | Abstrakt: | The high energy physics community recently gained access to the TPSCo 65 nm ISC (Image Sensor CMOS), which enables a higher in-pixel logic density in monolithic active pixel sensors (MAPS) compared to processes with larger feature sizes. To explore this novel technology, the Hybrid-to-Monolithic (H2M) test chip has been designed and manufactured. The design followed a digital-on-top design workflow and ports a hybrid pixel-detector architecture, with digital pulse processing in each pixel, into a monolithic chip. The chip matrix consists of 64×16 square pixels with a size of 35×35 μm2, and a total active area of approximately 1.25 mm2. The chip has been successfully integrated into the Caribou DAQ system. It is fully functional, and the measured threshold dispersion and noise agree with the expectation from front-end simulations. However, a non-uniform in-pixel response related to the size and location of the n-wells in the analog circuitry has been observed in test beam measurements and will be discussed in this contribution. This asymmetry in the pixel response, enhanced by the 35 μm pixel pitch — larger than in other prototypes — and certain features of the readout circuit, has not been observed in prototypes with smaller pixel pitches in this technology. |
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