A maximum likelihood approach to the inverse problem of scatterometry
Scatterometry is frequently used as a non-imaging indirect optical method to reconstruct the
critical dimensions (CD) of periodic nanostructures. A particular promising direction is EUV …
critical dimensions (CD) of periodic nanostructures. A particular promising direction is EUV …
Modeling of line roughness and its impact on the diffraction intensities and the reconstructed critical dimensions in scatterometry
We investigate the impact of line edge and line width roughness (LER, LWR) on the
measured diffraction intensities in angular resolved extreme ultraviolet (EUV) scatterometry …
measured diffraction intensities in angular resolved extreme ultraviolet (EUV) scatterometry …
Deep ultraviolet scatterometer for dimensional characterization of nanostructures: system improvements and test measurements
M Wurm, S Bonifer, B Bodermann… - … Science and Technology, 2011 - iopscience.iop.org
A novel type of deep ultraviolet scatterometer recently developed and set up at PTB has
been significantly improved with respect to the dynamic range and the signal-to-noise ratio …
been significantly improved with respect to the dynamic range and the signal-to-noise ratio …
Numerical Validation of Analytical Solutions for the Kairat Evolution Equation
MMA Khater - International Journal of Theoretical Physics, 2024 - Springer
This study undertakes a comprehensive analytical and numerical investigation of the
nonlinear Kairat model, a significant evolution equation that governs a wide range of …
nonlinear Kairat model, a significant evolution equation that governs a wide range of …
An integrated analytical–numerical framework for studying nonlinear PDEs: The GBF case study
MMA Khater - Modern Physics Letters B, 2024 - World Scientific
In this study, we investigate the complex dynamics of the (1+ 1)-dimensional generalized
Burgers–Fisher (GBF) model, a nonlinear partial differential equation that encapsulates the …
Burgers–Fisher (GBF) model, a nonlinear partial differential equation that encapsulates the …
Analytical insights into the behavior of finite amplitude waves in plasma fluid dynamics
This study introduces innovative analytical solutions for the (2+ 1)-dimensional nonlinear
Jaulent–Miodek (𝕁 𝕄) equation, a governing model elucidating the propagation …
Jaulent–Miodek (𝕁 𝕄) equation, a governing model elucidating the propagation …
Nonlinear evolution equations in dispersive media: Analyzing the semilinear dispersive-fisher model
Abstract The nonlinear Semilinear Dispersive-Fisher (SDF) model is an important equation
describing wave dynamics in dispersive media influenced by nonlinear and diffusive effects …
describing wave dynamics in dispersive media influenced by nonlinear and diffusive effects …
Modelling line edge roughness in periodic line-space structures by Fourier optics to improve scatterometry
H Gross, S Heidenreich, MA Henn… - Journal of the …, 2014 - jeos.edpsciences.org
In the present paper, we propose a 2D-Fourier transform method as a simple and efficient
algorithm for stochastical and numerical studies to investigate the systematic impacts of line …
algorithm for stochastical and numerical studies to investigate the systematic impacts of line …
Impact of line edge and line width roughness on diffraction intensities in scatterometry
H Gross, MA Henn, S Heidenreich… - Optical Systems …, 2012 - spiedigitallibrary.org
The characterization of nanostructured surfaces by scatterometry is an established method
in wafer metrology. From measured light diffraction patterns, critical dimensions (CD) of …
in wafer metrology. From measured light diffraction patterns, critical dimensions (CD) of …
Geometry reconstruction for scatterometry on a MoSi photo mask based on maximum likelihood estimation
Previous work has shown that the reconstruction of geometric parameters describing the
profile of an attenuated phase shift (MoSi) photomask is possible by a least-square …
profile of an attenuated phase shift (MoSi) photomask is possible by a least-square …