A5031481588- CCD and CMOS Imaging Sensors
- Particle Detector Development and Performance
- Advancements in Semiconductor Devices and Circuit Design
- Electron and X-Ray Spectroscopy Techniques
- Advanced Optical Sensing Technologies
University of California, Santa Cruz
2022-2023
Institute of Particle Physics
2022
Abstract We present the first results from HPSoC ASIC designed for readout of Ultra-fast Silicon Detectors. The 4-channel manufactured in 65 nm CMOS by TSMC has been optimized 50 μm thick AC-LGAD. evaluation analog front end with β-particles impinging on 3 × AC-LGAD arrays (500 pitch, 200 2 metal) confirms a fast output rise time 600 ps and good timing performance jitter 45 ps. Further calibration experiments TCT laser studies indicate some gain limitations that are being investigated...
Low Gain Avalanche Detectors (LGADs) are thin silicon detectors with moderate internal signal amplification and time resolution as good 17 ps for minimum ionizing particles. However, the current major limiting factor in granularity is due to protection structures preventing breakdown caused by high electric fields at edge of segmented implants. This structure, called Junction Termination Extension (JTE), causes a region 50-100~\um\ inactive space. Therefore, LGAD sensors currently limited mm...
We present the first results from HPSoC ASIC designed for readout of Ultra-fast Silicon Detectors. The 4-channel manufactured in 65 nm CMOS by TSMC has been optimized 50 um thick AC-LGAD. evaluation analog front end with \b{eta}-particles impinging on 3x3 AC-LGAD arrays (500 pitch, 200x200 um2 metal) confirms a fast output rise time 600 ps and good timing performance jitter 45 ps. Further calibration experiments TCT laser studies indicate some gain limitations that are being investigated...