3-11. Particles
Particles have the appearance of eyes and if present are usually concentrated at the wafer edges and not within the speci ed area. If present, count once per occurrence.Two particles within 200 microns count as one.
5-6-4 SiC High-Power Switching Devices The inherent material properties and basic physics behind the large theoretical benefits of SiC over silicon for power switching devices were discussed Section 5.3.2. Similarly, it was discussed in Section 5.4.5 that crystallographic defects found in SiC wafers and epilayers [...]
3-4. Step Bunching Step bunching is visible as a pattern of parallel lines running perpendicular to the major at. If present, estimate the % of speci ed area affected.
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.
2-36.Reclaim Grade Reclaim Grade:A lower quality wafer that has been used in manufacturing and then reclaimed , etched or polished, and then used a second time in manufacturing.
2-17.Polytypes Many compound materials exhibit polymorphism, that is they can exist in different structures called polymorphs. Silicon carbide (SiC) is unique in this regard as more than 250 polymorphs of silicon carbide had been identified by 2006,with some of them having a lattice constant as [...]
Most analog signal conditioning and digital logic circuits are considered “signal level” in that individual transistors in these circuits do not typically require any more than a few milliamperes of current and <20 V to function properly. Commercially available silicon-on-insulator circuits can perform complex digital and [...]
