Study of CMOS strip sensor for future silicon tracker
Study of CMOS strip sensor for future silicon tracker
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DOI：
10.1016/j.nima.2020.164520
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发表时间：
2020-11-21
影响因子：
1.4
通讯作者：
Zhang, J.
中科院分区：
文献类型：
--
作者：
Han, Y.;Zhu, H.;Zhang, J.
利用高压CMOS（HV-CMOS）工艺开发的单片硅传感器对于带电粒子跟踪已经变得非常有吸引力。与标准CMOS传感器相比，HV-CMOS传感器可以提供更大、更深的耗尽区，从而产生更大的信号和更快的电荷收集。它们可以提供高的位置分辨率、低的材料预算、高的抗辐射性和低的成本，这对于在恶劣的碰撞环境中的高性能跟踪是期望的。为了探索未来对撞机实验中大面积跟踪系统的技术可行性，已经进行了各种研究。CHESS（CMOS HV/HR Evaluation for Strip Sensor）传感器系列已经开发出来，作为传统硅微带探测器的替代方案，用于ATLAS内部跟踪器的升级。第一个原型（命名为CHESS 1）是评估二极管几何形状和像素内模拟电子器件。并利用试验结果对第二台样机（CHESS 2）进行了优化。CHESS 2采用全数字读出架构，并实现为全掩模版尺寸的单片传感器。在本文中，CHESS 2原型传感器的基本特性和它们的性能在不同的输入信号的响应。
Monolithic silicon sensors developed with High-Voltage CMOS (HV-CMOS) processes have become highly attractive for charged particle tracking. Compared with the standard CMOS sensors, HV-CMOS sensors can provide larger and deeper depletion regions that lead to larger signals and faster charge collection. They can provide high position resolution, low material budget, high radiation hardness and low cost that are desirable for high performance tracking in harsh collision environment. Various studies have been conducted to explore the technology feasibility for the large-area tracking systems at future collider experiments.CHESS (CMOS HV/HR Evaluation for Strip Sensor) sensor series have been developed as an alternative solution to the conventional silicon micro-strip detectors for the ATLAS inner tracker upgrade. The first prototype (named CHESS1) was to evaluate the diode geometry and the in-pixel analog electronics. Obtained test results were used to optimize the second prototype (named CHESS2). CHESS2 was implemented with a full digital readout architecture and realized as a full reticle sized monolithic sensor. In this paper, the basic characteristics of the CHESS2 prototype sensors and their performance in response to different input signals are presented.