TWEPP26 Topical Workshop on Electronics for Particle Physics

Session

ASIC - MAPS

29 Sept 2026, 15:20

Castelldefels, Barcelona, Spain

39. Monolithic Pixel Detector with Parallel Comparator Readout and TDC Averaging for Precision Timing in Mu3e

Miaoran Sun

29/09/2026, 15:20

ASIC

Oral

We present the monolithic particle sensor prototype Picopix2, implemented in a $180~\mathrm{nm}$ HV-CMOS technology. The sensor is based on a triple-well process with a high-resistivity substrate ($370~\Omega\cdot\mathrm{cm}$). Each pixel integrates a charge-sensitive amplifier with parallel discriminator paths, each equipped with its own TDC, enabling improved timing resolution through...

117. MALTA2 Monolithic Pixel Sensor in High-Radiation Environments: Recent Results and Developments

Milou Van Rijnbach (CERN)

29/09/2026, 15:40

ASIC - MAPS

Oral

The MALTA2 monolithic pixel sensor in 180 nm CMOS imaging technology has been characterised up to 5x10^15 neq/cm2, achieving >95% hit efficiency at 3x10^15 neq/cm2. This contribution presents the first test beam results of a modified MALTA2 design with increased n-layer doping, targeting efficient operation at the highest fluence. The enhanced doping is expected to improve charge collection...

169. End-to-End Design Flow for On-Chip Data Compression with Embedded AI in MAPS Pixel Detectors

Jelena Lalic (Massachusetts Inst. of Technology (US))

29/09/2026, 16:00

ASIC

Oral

We present an end-to-end design flow that connects detector simulation to silicon implementation, enabling realistic characterization of low-power embedded AI inference for noise rejection, clustering, and data compression in MAPS pixel detectors with continuous readout. The flow is technology-agnostic and is exercised here in a 28 nm standard CMOS process to close the simulation-to-silicon...

213. A Multi-Function Power and Control ASIC for Serially Powered MAPS in the ePIC SVT at the Electron Ion Collider

Grzegorz Deptuch (Brookhaven National Laboratory (US))

29/09/2026, 17:40

ASIC

Oral

The ePIC Silicon Vertex and Tracking (SVT) detector at the Electron–Ion Collider employs serial powering for most barrel layers and requires congregation of resource delivery, motivating an Application-Specific Integrated Circuit providing multi-power-domain shunt regulation, negative bias generation, slow-control management, and monitoring for MAPS-based sensors. Implemented in a 0.11 µm HV...

152. Performance-aware sensor design - PixESL for ALMIRA

Davide Chiappara (CERN)

29/09/2026, 18:00

Logic - Digital Design, Verification Tools and Methods

Oral

This contribution presents the development of a system level simulation using PixESL to assess quantitatively the performances of the tracking devices developed within ALMIRA (ALice3 Monolithic Integrated tRacking Asic) project for ALICE upgrade. This fully developed simulation runs in about 30 second per orbit per cm2 and guides the design by estimating key ASIC performance metrics: timing...

101. ALICE ITS3 MOSAIX development and implementation: a retrospective view of challenges and lessons.

Gianluca Aglieri Rinella (CERN)

30/09/2026, 09:00

ASIC

Oral

MOSAIX is a wafer‑scale Monolithic Active Pixel Sensor (MAPS) implemented in a 65 nm CMOS imaging process using stitching, with overall dimensions of 266×19.6 mm². It integrates all the functionalities required for the ALICE ITS3 Upgrade.

This contribution provides a retrospective view of the development and implementation of the MOSAIX chip. It focuses on implementation challenges arising...

149. Challenges in the verification of MOSAIX ASIC for ALICE ITS3

Dr Simone Scarfi' (CERN)

30/09/2026, 09:20

Logic - Digital Design, Verification Tools and Methods

Oral

The MOSAIX is a wafer-scale, full-functionality prototype ASIC for the ALICE Inner Tracking System (ITS3) upgrade, implemented in $65\,nm$ stitching technology.
It integrates 144 independently powered pixel matrices, eight $10\,Gb/s$ serializers, and on-chip data and power distribution, making full-chip verification highly resource-intensive (over $80\,GB$ of memory and 175.000 tests)....

114. Architecture and Power Distribution Strategies of the Wafer-Scale MOSAIX Sensor for ALICE ITS3

Dominik Dobrijevic (CERN)

30/09/2026, 09:40

ASIC - MAPS

Oral

The MOSAIX (MOnolithic Stitched Active pIXel) detector is a wafer-scale silicon sensor for the ALICE ITS3 upgrade. Measuring 26.6 × 1.96 cm$^2$ it operates with air cooling, limiting its power budget. It features a high-speed data hub, accumulating information from the 144 independent pixel matrices. Powering five domains exclusively from the short edges presents constraints: analog IR drop...

78. ALICE ITS3 MOSAIX test system experience and yield characterization

Ola Slettevoll Groettvik (CERN)

30/09/2026, 11:20

ASIC - MAPS

Oral

The ALICE ITS3 upgrade for LHC Run 4 employs a stitched, wafer-scale monolithic active pixel sensor for the first time in high-energy physics. MOSAIX, the final full-scale prototype, integrates 144 independently powered pixel matrices, eight 10 Gb/s transmitters, and on-chip power and data distribution across 27 cm. The qualification system developed prior to sensor delivery proved critical in...

68. MOSAIX: System Integration and Data Path Performance

Maximilian Babeluk

30/09/2026, 11:40

ASIC - MAPS

Oral

The ALICE ITS3 upgrade for LHC Run 4 uses stitched wafer-scale MAPS, enabling a material budget of $0.9\%\ X_0$ per layer with bent, $50\,\mu m$ thick modules. The full-scale prototype sensor, MOSAIX, integrates power and data distribution, power-gated sensor tiles, and high-speed transmitters. System integration and performance aspects including power, electrical, optical and signal...

124. ALICE ITS3 MOSAIX functional and performance results

Szymon Bugiel (CERN)

30/09/2026, 12:00

ASIC - MAPS

Oral

For the LS3 ALICE ITS3 upgrade, an ultra-light (0.09\% X0 per layer) vertex detector based on wafer-scale monolithic pixel sensors thinned to 50 $\mu$m is being developed. MOSAIX is the full-scale, full-functionality prototype, integrating power distribution, signal processing, and data transmission on-chip. This contribution presents measurement results of MOSAIX, focusing on pixel matrix...