定性分析了高阻硅探测器表面漏电流的产生，同时介绍了一种有效降低漏电流的方法，即保护环结构。
This paper analyzes the reason producing surface leakage current of high resistivity detector, and adopts guard ring to reduce the leakage current.
提出了一种新型的场板和保护环相结合的结终端技术，并讨论了此终端结构的工作原理和优越性。
A new junction termination technique in which field plate combines with diffusion guard ring is presented. And we discuss the principle and superiority of the new junction termination technique.
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