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In this paper, we introduce a sample preparation technique for two-dimensional (2D) dopant concentration profiling in silicon based devices. Selective chemical etching will be shown in a series of tunneling field-effect transistors (FETs). It is experimentally proven that this method offers a high success rate and provides a simple route to Transmission Electron Microscopy (TEM) study of 2D dopant...
Chemical bonding states of doped impurities, boron (B) and arsenic (As), in silicon (Si) shallow junctions were studied by soft X-ray photoelectron spectroscopy (SXPES). A step-by-step shallow etching and Hall effect measurements were combined with the SXPES to investigate correlation between chemical bonding state and electrical activation of the impurities, and to clarify depth profiles of concentration...
Chemical bonding states of doped impurities such as B, As, P and Sb in Si were analyzed by soft X-ray photoelectron spectroscopy (SXPES). A step-by-step shallow etching and Hall effect measurements were combined with the SXPES to investigate correlation between chemical bonding state and electrical activation, and to clarify depth profiles of concentration of activated and deactivated impurities in...
We studied theoretically chemical self-diffusion and the diffusion of extrinsic atoms in CdTe. We compiled a general model describing the multi-species diffusion of arbitrary amounts of elements in a form optimized for numerical calculations and applied it to a model system of CdTe doped with slow- or fast-diffusing elements. The diffusion of slowly diffusing atoms was analyzed and compared with experimental...
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