Speaker
Description
The stringent requirements for high-resolution Time-of-Flight detector layers in the HL-LHC experiments currently under design present significant detector development challenges. Achieving precise time resolution while balancing constraints on power consumption, material budget, fabrication, and assembly costs requires careful engineering trade-offs. Monolithic solutions offer a promising approach to addressing these challenges, driving increased R&D efforts to exploit impact ionization in monolithic detectors for precise timing and 4D tracking.
This contribution presents the development of Low-Gain Avalanche Detectors (LGADs) monolithically integrated into a customized 110nm CMOS process for the ALICE 3 detector. These sensors are based on modifications to the ARCADIA MAPS process, with a first test vehicle demonstrating both passive test devices and an active pixel matrix with integrated electronics. The key design modifications enabling LGAD functionality are critically examined, and future production plans and perspectives are discussed.
