期刊
AIP ADVANCES
卷 11, 期 2, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/5.0041850
关键词
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资金
- Key Project of National Natural Science Foundation of China [11835008]
- National Key R&D Program of China [2017YFF0105000]
- Special Project of Changsha-Zhuzhou-Xiangtan National Independent Innovation Demonstration Area [2017GK2293, 2018XK2303]
The new low-capacitance silicon pixel detector reduces noise by decreasing the cathode area and leakage current, with capacitance reduced significantly compared to traditional detectors of the same volume.
In order to reduce the noise of traditional silicon pixel detectors, a new type of low-capacitance silicon pixel detector with three floating electrodes is proposed in this paper, which reduces the cathode area while keeping the volume unchanged. A TCAD simulator is used to simulate the electrical performance of the detector and obtain electrical characteristics including depletion voltage, capacitance, and leakage current. According to the results of simulation and calculation, compared with the traditional silicon pixel detector with the same volume, the capacitance of the detector without floating electrodes was reduced by 68%, the capacitance of the detector with three floating electrodes was reduced by 68%, and the leakage current was reduced by two orders of magnitude.
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