利用平面扫描电容显微镜结合纳米探针和TCAD建模分析MOSFET植入物失效

Hun-Seong Choi, Yongwoon Han, I. Chung
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引用次数: 3

摘要

本文利用平面扫描电容显微镜(PVSCM)在硅衬底水平分析MOSFET植入物的失效。失效晶体管采用接触级纳米探测(NP)来表征。结合PVSCM、NP测量的IV特性和TEM截面分析,推断出故障原因。采用计算机辅助设计(TCAD)仿真技术进行故障建模和单片机数据验证。介绍了65纳米和45纳米工艺样品的失效分析案例。
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MOSFET implant failure analysis using plane-view scanning capacitance microscopy coupled with nano-probing and TCAD modeling
This paper presents MOSFET implant failure analysis using plane view scanning capacitance microscopy (PVSCM) at silicon substrate level. Failing transistors are characterized by nano-probing (NP) at contact level. The cause of failure was deduced from the combination of PVSCM, IV characteristics from NP measurement, and TEM cross-section analysis. Technology computer aided design (TCAD) simulation was implemented for failure modeling and SCM data verification. Failure analysis case studies of samples manufactured by 65 nm and 45 nm process are presented.
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