Channel Strain Characterization in Semiconductor Device by Techniques Based on Transmission Electron Microscope
2011
Three techniques based on transmission electron microscope (TEM) have been successfully applied to measure strain/stress in the channel area of PMOS semiconductor devices with embedded SiGe in the source/drain areas: convergent beam electron diffraction (CBED), nano beam diffraction (NBD) and dark-filed holography (DFH). Consistent channel strain measurements from the three techniques on the same TEM sample (eSiGe PMOS with 17%Ge) were obtained. Reliable strain/stress measurement results in the channel area have been achieved with very good agreement with computer-aided design (TCAD) calculations.
Keywords:
- Semiconductor device
- Inorganic chemistry
- Conventional transmission electron microscope
- Materials science
- Holography
- Energy filtered transmission electron microscopy
- Scanning transmission electron microscopy
- Analytical chemistry
- Electron tomography
- Transmission electron microscopy
- Strain (chemistry)
- Stress–strain curve
- Optoelectronics
- Correction
- Source
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