The 35th International Symposium for Testing and Failure Analysis (November 15-19, 2009) of ASM

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Wednesday, November 18, 2009

The Mechanism and Application of Surface Effect On e-Beam Voltage Contrast and Dopant Contrast

L. L. Lai, Semiconductor Manufacturing International Corporation, WuHan, HuBei, China; H. Gao, WuHan XinXin Semiconductor Manufacturing Corp., WuHan, HuBei, China; H. Xiao, Hermes Microvision, Inc., San Jose, CA

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Summary: We had a series of experiment and observation to investigate the application for the surface effect on the voltage contrast and dopant contrast. The in-line process gave an example of detection for the flatness in post-WCMP by way of e-Beam VC inspection. Regarding of the dopant contrast with surface effect, we are able to see doping distribution directly by SEM.