Channel Strain Characterization in Embedded SiGe by Nano-beam Diffraction
Autor: | Nivo Rovedo, Judson R. Holt, Sunfei Fang, Mark Lagus, Lynne Gignac, Angela Lamberti, Dominic J. Schepis, Anthony G. Domenicucci, Zhijiong Luo, Jinghong Li, Anita Madan, Henry K. Utomo, Jin-Ping Han, Chung Woh Lai, Ja-Hum Ku, Hung Ng |
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Rok vydání: | 2008 |
Předmět: | |
Zdroj: | ECS Transactions. 16:545-549 |
ISSN: | 1938-6737 1938-5862 |
Popis: | Nano-beam diffraction (NBD) has been successfully used in measuring channel strain in device of embedded SiGe (eSiGe). Strain measurements have been correlated to different processing conditions and microstructures of eSiGe and device performance. For intrinsic eSiGe without growth defect with 15-17%Ge, the average channel strain measured by NBD is ~ -0.55%, consistent with our previous measurement by convergent electron beam diffraction (CBED) and TCAD simulation. For graded eSiGe with average ~22%Ge, the average channel strain measured by NBD is ~ -0.90%, which is lower than the TCAD simulation. Differences between experimental results and simulation are also discussed. |
Databáze: | OpenAIRE |
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