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 is smooth.
1-3.Mohs Hardness Rough measure of the resistance of a smooth surface to scratching or abrasion, expressed in terms of a scale devised(1812)by the German mineralogist Friedrich Mohs. The Mohs hardness of a mineral is determined by observing whether its surface is scratched by a substance [...]
5-5-5 SiC Insulators: Thermal Oxides and MOS Technology The vast majority of semiconductor-integrated circuit chips in use today rely on silicon metal-oxide– semiconductor field-effect transistors (MOSFETs), whose electronic advantages and operational device physics are summarized in Katsumata’s chapter and elsewhere . Given the extreme usefulness and success of [...]
2-21.Usable Area A cumulative subtraction of all noted defect areas from the frontside wafer quality area within the edge exclusion zone. The remaining percent value indicates the proportion of the frontside surface to be free of all noted defects (does not include edge exclusion).
1-2.Stacking Sequence If we are going to make a laminated structure, we must know the thickness of each ply and the angle of each ply traditionally in degrees defined from the top layer down.
5-3-1 High-Temperature Device Operation The wide bandgap energy and low intrinsic carrier concentration of SiC allow SiC to maintain semiconductor behavior at much higher temperatures than silicon, which in turn permits SiC semiconductor device functionality at much higher temperatures than silicon . As discussed in basic semiconductor electronic [...]
2-31.N type A semiconductor has electrical conductivity between that of a conductor and an insulator. Semiconductors differ from metals in their characteristic property of decreasing electrical resistivity with increasing temperature.Semiconductors can also display properties of passing current more easily in one direction than the other, [...]
