5th DRD3 week on Solid State Detectors R&D

Session

WG1 (WP1)

1 Jul 2026, 10:30

Institute of Space Science & National Institute of Materials Physics

79. Introduction to WG1/WP1 sessions

Eva Vilella Figueras (University of Liverpool (GB)), Heinz Pernegger (CERN), Jerome Baudot (IPHC - Strasbourg)

01/07/2026, 10:30

53. Latest TCAD Results for the Optimization of Internal-Gain CACTUS Sensors in the 150 nm LFoundry Process

Juan Ignacio Drovandi (Consejo Superior de Investigaciones Cientificas (CSIC) (ES))

01/07/2026, 10:40

WG1 - Monolithic Sensors

The CACTUS (CMOS ACtive pixel Timing Sensor) project aims to develop radiation-hard monolithic sensors with excellent timing performance in a standard CMOS process. The latest prototype, MiniCACTUS-v2, has achieved timing resolution in the 50 ps regime using drift-only depleted CMOS sensors fabricated in the 150 nm LFoundry HV-CMOS process on high-resistivity p-type substrates.

To further...

73. A fully digital TDC for the CACTUS monolithic timing detector

Raimon Casanova Mohr (IFAE - Barcelona (ES))

01/07/2026, 11:03

WG1 - Monolithic Sensors

MiniCACTUS is a series of large collecting electrode monolithic sensor prototypes developed for precision timing applications in future large-area timing detectors for high-energy physics experiments. These have been fabricated with a 150 nm HV-CMOS process from LFoundry. The most recent prototype, MiniCACTUSV2, incorporates several pixel sizes, ranging from 1×1 mm2 down to 500×500 μm2. The...

27. Recent Testbeam Results of MiniCACTUSV2 and Novel Gain-Layer Sensor Prototypes

Stefano Terzo (IFAE Barcelona (ES))

01/07/2026, 11:26

WG1 - Monolithic Sensors

MiniCACTUS is a series of large fill-factor monolithic sensor prototypes developed for precision timing applications in future large-area timing detectors for high-energy physics experiments. The devices are fabricated in the 150 nm LFoundry HV-CMOS technology on high-resistivity p-type substrates, where charge collection is achieved through a deep n-well electrode.

The most recent...

48. Infrared and 90Sr characterization of LFoundry 150 nm test structures with intrinsic gain for the Cactus development line

Prof. Philippe Schwemling (Université Paris-Saclay (FR))

01/07/2026, 11:49

WG1 - Monolithic Sensors

The Cactus line of sensor demonstrators is focused on the investigation of timing performance that can be reached with non amplified sensors, as well as with sensors with intrinsic gain.

Test structures featuring an integrated gain layer in the form of a buried PN junction have been submitted as part of an MPW run in 2024 in the Lfoundry 150 nm LF15A process. Four wafers have been produced...

18. Recent results of the CASSIA project

Leena Diehl (University of Zurich (CH))

01/07/2026, 12:12

WG1 - Monolithic Sensors

The CASSIA (CMOS Active SenSor with Internal Amplification) project is focused on developing monolithic active pixel sensors (MAPS) with internal signal gain in the Tower 180nm CMOS process.
An internal amplification enables the simplification of the in-pixel electronics while simultaneously improving the signal to noise ratio for radiation hardness and offering the potential for excellent...

78. The MOSFET Gain Tuning Idea

Ioannis Kopsalis (National Technical Univ. of Athens (GR))

01/07/2026, 12:35

WG1 - Monolithic Sensors

The need for 4D (fast timing in addition to 3D resolution in space) silicon particle detectors has become very apparent with the introduction of the High-Luminosity (HL) upgrade at the LHC. Timings on the order of tens of picoseconds will allow better reconstruction of the ~200 primary vertices along the beam line in every bunch crossing. Correct association of tracks with primary vertices is...

68. DMAPS for space applications

Haris Lambropoulos (National and Kapodistrian University of Athens)

02/07/2026, 14:00

WG1 - Monolithic Sensors

DMAPS can become a disruptive technology for miniaturized space instrumentation. Developments studied in the context of DRD3 collaboration can find applications in proton, ion and electron flux measurement problems encountered in heliophysics, and radiation monitoring - protection in the space environment. We will present simulation results supporting the inclusion of DMAPS in such...

81. Monstera Large tracking detector volumes

Ingrid-Maria Gregor (DESY & Bonn University), Lennart Huth (Deutsches Elektronen-Synchrotron (DE))

02/07/2026, 14:25

WG1 - Monolithic Sensors

The next generation particle physics experiments requires scalable technologies at moderate prices and at highest possible integration levels to reduce system complexity. The Monstera project investigates fully integrated strips developed in LFoundry 150nm HV-VMOS, based on previous successful testing of passive strips. The design profits from the exiting readout and configuration scheme that...

11. Development Status & Plans of Serial Powering at IHEP

Hui Zhang (Institute of High Energy Physics)

02/07/2026, 14:50

WG1 - Monolithic Sensors

The drive for higher spatial resolution and larger tracking coverage in high-energy physics has led to silicon pixel detectors spanning several square meters, integrating tens of thousands of readout units. Conventional parallel powering, which supplies each module via separate cables, results in a proliferation of cabling that dramatically increases the material budget, exacerbates multiple...

69. Early results with the asynchronous architecture of SPARC

Jerome Baudot (IPHC - Strasbourg)

02/07/2026, 15:15

1

WG1 - Monolithic Sensors

SPARC (Sensor Pixel Asynchronous Readout CMOS) is a small MAPS prototype designed in a 65 nm CMOS technology to test and validate a new asynchronous logic to read pixel matrices. Based on a tree of asynchronous arbiters, this architecture is expected to cope easily with a wide range of hit rates and to deliver fired pixel information in time compatible with few tens ns time-stamping in a power...

25. Status of the MANTA project

Michael Deveaux (GSI - Helmholtzzentrum fur Schwerionenforschung GmbH (DE))

02/07/2026, 15:40

WG1 - Monolithic Sensors

The MANTA project aims for building a versatile CMOS Monolithic Active Pixel Sensor suited for applications in various silicon trackers. It will provide simultaneously a ~10 µm spatial precision and a fast (1-10 ns) time stamping. This will be reached by complementing i) an asynchronous pixel readout providing the address of the fired pixel within few 10 ns time with ii) a fast pixel OR...

19. Optimizing the MALTA3 readout design for the 65 nm TPSCo node.

Dumitru-Vlad Berlea (Deutsches Elektronen-Synchrotron (DE))

02/07/2026, 16:20

WG1 - Monolithic Sensors

MALTA2 is a depleted monolithic active pixel sensor (DMAPS) developed in the Tower Semiconductor 180 nm CMOS imaging process. It features a small collection electrode and achieves a full depletion of the sensitive volume at a low bias voltage of $-6\,\mathrm{V}$. Further development of the MALTA chip aims to satisfy the requirements of the outer layers of the ATLAS Inner Tracker. This requires...

5. Status update on OCTOPUS

Lennart Huth (Deutsches Elektronen-Synchrotron (DE))

02/07/2026, 16:45

WG1 - Monolithic Sensors

The OCTOPUS project develops a monolithic pixel sensor in the 65 nm TPSCo process, targeting the vertex-detector layers at a future Lepton Collider.. A single-point resolution of 3 μm, a time resolution in the order of 5 ns, a hit-rate capability of up to 100 MHz/cm², maximal thickness of 50 μm, an average power consumption below 50 mW/cm² are required. Additionally a minimal inactive...

28. R&D program proposal focused on the SK hynix 90 nm CIS process for future vertex detector

Zhijun Liang (Chinese Academy of Sciences (CN))

02/07/2026, 17:10

WG1 - Monolithic Sensors

We propose an R&D program focused on the SK hynix 90 nm CMOS Image Sensor (CIS) process as a dedicated technology option for Future lepton collider vertex-detector MAPS. The near-term goal is to establish and characterize a first generation of reticle-scale pixel-sensor prototypes in this process, including sensor test structures, small matrices, readout architectures, and radiation-tolerance...

40. Development of COFFEE, HVCMOS sensors using 55nm process

Yiming Li (Institute of High Energy Physics, Chinese Academy of Sciences (CN))

02/07/2026, 17:35

WG1 - Monolithic Sensors

High-Voltage CMOS sensors are promising technological candidates for trackers at future circular-electron collider as well as at the LHCb upgrade, due to the fast charge collection and intrinsic radiation hardness. Developed using 55nm CMOS processes, COFFEE seriers sensors aim to deliver a large prototype with high spatial and time resolution. COFFEE3 sensor was a first small prototype with a...