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生长时 Si/C 比分别为 0.7 1.2 1.6 2.4 2.0。、
所有外延片都有 4 度斜切。
Five 6-inch p-type epitaxial wafers on n-type substrates were used, denoted as W#sub[1]-W#sub[5].
All epitaxial layers were grown using step-flow method with a offcut angle.
The Al doping concentrations in the epitaxial layers
were 0.1, 3.8, 5.1, 6.4, and 10 #sym.times 10 cm#super[-3] (measured using SIMS)
with W#sub[1]-W#sub[4] having a thickness of 1 μm and W#sub[5] having a thickness of 2 μm, respectively.
The Si/C ratios of the five wafers during growth were 0.7, 1.2, 1.6, 2.4, and 2.0, respectively.
Five 6-inch p-type epitaxial wafers (W#sub[1]W#sub[5]) were fabricated on n-type substrates
using the step-flow growth method with a offcut angle.
The Al doping concentrations, determined by SIMS,
were 0.1, 3.8, 5.1, 6.4, and 10 #sym.times 10 cm#super[-3] for W#sub[1]W#sub[5], respectively.
W#sub[1]W#sub[4] had an epitaxial layer thickness of 1 μm, while W#sub[5] had a thickness of 2 μm.
The Si/C ratios during growth were 0.7, 1.2, 1.6, 2.4, and 2.0 for the five wafers, respectively.
拉曼设备的型号。激光的波长,背散射。共焦针孔。