3-5. Backside Cleanliness
Veri ed by inspecting for a uniform color to the wafer backside. Note there is a darker region near the center of some higher doped wafers. Backside cleanliness speci ed as percent area clean.
3-5. Backside Cleanliness
Veri ed by inspecting for a uniform color to the wafer backside. Note there is a darker region near the center of some higher doped wafers. Backside cleanliness speci ed as percent area clean.
2-13.Hex Plate Hexagonal shaped platelets on the surface of the wafer which appear silver in color to the unaided eye, under diffuse illumination.
5-5 SiC Device Fundamentals To minimize the development and production costs of SiC electronics, it is important that SiC device fabrication takes advantage of existing silicon and GaAs wafer processing infrastructure as much as possible. As will be discussed in this section, most of the [...]
5-3 Applications and Benefits of SiC Electronics Two of the most beneficial advantages that SiC-based electronics offer are in the areas of high-temperature and high-power device operation. The specific SiC device physics that enables high-temperature and high-power capabilities will be examined first, by several examples of revolutionary [...]
2-14.Masking Defects also referred to as “Mound” When one defect prevents the detection of another defect, the undetected defect is called the masked defect. A distinct raised area above the wafer frontside surface as viewed with diffuse illumination.
5-4-4-3 SiC Epilayer Doping In-situ doping during CVD epitaxial growth is primarily accomplished through the introduction of nitrogen (usually) for n-type and aluminum (usually trimethyl- or triethylaluminum) for p-type epilayers . Some alternative dopants such as phosphorus and boron have also been investigated for the [...]
2-22.Surface Roughness Often shortened to roughness, is a measure of the texture of a surface. It is quantified by the vertical deviations of a real surface from its ideal form. If these deviations are large, the surface is rough; if they are small the surface [...]
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