Skipper CCD-in-CMOS active pixel sensor: status and first characterization results

Fabricio Alcalde; Davide Braga; Claudio Chavez; Fernando Chierchie; Angelo Dragone; Juan Estrada; Farah Fahim; Aseem Gupta; Guillermo Fernandez Moroni; Agustin Lapi; Benjamin Parpillon; Adam Quinn; Lorenzo Rota; Miguel Sofo Haro

doi:10.1117/12.3020543

28 August 2024 Skipper CCD-in-CMOS active pixel sensor: status and first characterization results

Fabricio Alcalde, Davide Braga, Claudio Chavez, Fernando Chierchie, Angelo Dragone, Juan Estrada, Farah Fahim, Aseem Gupta, Guillermo Fernandez Moroni, Agustin Lapi, Benjamin Parpillon, Adam Quinn, Lorenzo Rota, Miguel Sofo Haro

Author Affiliations +

Proceedings Volume PC13103, X-Ray, Optical, and Infrared Detectors for Astronomy XI; PC131030J (2024) https://doi.org/10.1117/12.3020543
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Abstract

The Skipper CCD-in-CMOS image sensor integrates the non-destructive readout capability of skipper Charge Coupled Devices (CCDs) with a high conversion gain pinned photodiode on a CMOS imaging process, while taking advantage of in-pixel signal processing. We will present the first results of the testing of the first prototype ASIC, fabricated in a commercial 180nm CMOS processes, which integrates a pixel matrix as well as individual test structures. Individual pixels in the test structures of the fabricated devices were instrumented to characterize their charge transfer capability and to study their operation in low readout noise conditions. We were able to operate the pixel in single carrier counting mode with deep sub-electron noise to measure charge packets collected by the photodiode when exposed to low illumination levels. Additionally, we will also report on the status of the custom 65nm ASICs prototypes being developed to achieve high speed, sub-electron noise readout. Work supported by the DOE Office of Science under the Microelectronics Co-Design Research Project “Hybrid Cryogenic Detector Architectures for Sensing and Edge Computing enabled by new Fabrication Processes

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Fabricio Alcalde, Davide Braga, Claudio Chavez, Fernando Chierchie, Angelo Dragone, Juan Estrada, Farah Fahim, Aseem Gupta, Guillermo Fernandez Moroni, Agustin Lapi, Benjamin Parpillon, Adam Quinn, Lorenzo Rota, and Miguel Sofo Haro "Skipper CCD-in-CMOS active pixel sensor: status and first characterization results", Proc. SPIE PC13103, X-Ray, Optical, and Infrared Detectors for Astronomy XI, PC131030J (28 August 2024); https://doi.org/10.1117/12.3020543

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