2-25.FWHM
Full width at half maximum (FWHM) is an expression of the extent of a function, given by the difference between the two extreme values of the independent variable at which the dependent variable is equal to half of its maximum value.
2018-06-28meta-author
5-4 SiC Semiconductor Crystal Growth
As of this writing, much of the outstanding theoretical promise of SiC electronics highlighted in the
previous section has largely gone unrealized. A brief historical examination quickly shows that serious
shortcomings in SiC semiconductor material manufacturability and quality have greatly hindered the
development [...]
2018-06-28meta-author
2-12.Edge Exclusion
The outer annulus of the wafer is designated as wafer handling area and is excluded from surface nish criteria (such as scratches, pits, haze, contamination, craters,dimples, grooves, mounds, orange peel and saw marks). This annulus is 2 mm for 76.2 mm substrates, and [...]
2018-06-28meta-author
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.
2018-06-28meta-author
2-5.Misorientation
In wafers cut intentionally “off orientation”, the angle between the projection of the normal vector to the wafers
surface onto a {0001} plane and the projection on that plane of the nearest <11-20> direction.
2018-06-28meta-author
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 [...]
2018-06-28meta-author