Saved in:
| Main Authors: | , , , , , , , , , , , , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2026
|
| Subjects: | |
| Online Access: | https://arxiv.org/abs/2605.13281 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866909039989882880 |
|---|---|
| author | Ma, Kuo Zhang, De He, Shengjia Wang, Tian-ao Li, Han Nie, Yu Wang, Xiuxia Peng, Jinlan Liang, Zheng Li, Xiang Shi, Wenhua Liu, Manwen Liao, Chuan Li, Zheng Tang, Zebo Liu, Yanwen |
| author_facet | Ma, Kuo Zhang, De He, Shengjia Wang, Tian-ao Li, Han Nie, Yu Wang, Xiuxia Peng, Jinlan Liang, Zheng Li, Xiang Shi, Wenhua Liu, Manwen Liao, Chuan Li, Zheng Tang, Zebo Liu, Yanwen |
| contents | We report on the development of 3D silicon sensors at the University of Science and Technology of China (USTC). The sensor involves columnar electrodes (5 um in diameter) of both doping types, etched from the same wafer side. The p+ electrodes pass through the epitaxial wafer, whereas the n+ electrodes stop at a short distance from the opposite side of the epitaxial wafer. With respect to previous generations of 3D sensors, they feature an ultra-thin active substrate (50 um) and a small pixel size of 50 um x 50 um or 25 um x 25 um. This R&D project aims to establish a sensor technology to simultaneously measure position and time information at the single-pixel level. The first run with one merged wafer layout has been completed. The design, fabrication, and characterization of the sensors are reported in this paper. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2605_13281 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Development of Small-pitch, Ultra-thin 3D Silicon Sensors at USTC Ma, Kuo Zhang, De He, Shengjia Wang, Tian-ao Li, Han Nie, Yu Wang, Xiuxia Peng, Jinlan Liang, Zheng Li, Xiang Shi, Wenhua Liu, Manwen Liao, Chuan Li, Zheng Tang, Zebo Liu, Yanwen Instrumentation and Detectors We report on the development of 3D silicon sensors at the University of Science and Technology of China (USTC). The sensor involves columnar electrodes (5 um in diameter) of both doping types, etched from the same wafer side. The p+ electrodes pass through the epitaxial wafer, whereas the n+ electrodes stop at a short distance from the opposite side of the epitaxial wafer. With respect to previous generations of 3D sensors, they feature an ultra-thin active substrate (50 um) and a small pixel size of 50 um x 50 um or 25 um x 25 um. This R&D project aims to establish a sensor technology to simultaneously measure position and time information at the single-pixel level. The first run with one merged wafer layout has been completed. The design, fabrication, and characterization of the sensors are reported in this paper. |
| title | Development of Small-pitch, Ultra-thin 3D Silicon Sensors at USTC |
| topic | Instrumentation and Detectors |
| url | https://arxiv.org/abs/2605.13281 |