Understanding the Key Differences Between 4H-SiC and 6H-SiC
The crystal structure of silicon carbide directly influences its overall properties. Both 4H-SiC and 6H-SiC share a hexagonal crystal system, but they differ in stacking sequences. 4H-SiC follows an ABCB pattern, while 6H-SiC exhibits an ABABAB arrangement. These slight structural variations lead to significant differences in material behavior, including symmetry, lattice spacing, and electrical performance.
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