（100）偏（111）15°晶面比（100）偏（111）2°、（100

The (100) deviation from the (111) 15 ° crystal plane is lower than the (100) deviation from the (111) 2 ° and (100) deviation from the (111) 6 °. When the crystal plane shifts from the (100) plane to the (111) crystal plane, the amount of scratch bulge is lower.

(100) the ratio of the 15-degree crystal surface (100) to the ratio of (110) to 2 degrees, (100) to the (111) 6 degrees of the two crystal surfaces are lower. The lower the bump of the scratch when the surface is tilted from the (100) face to the (111) surface.

The bulge amount of (100) deviating (111) 15 ° crystal surface is lower than that of (100) deviating (111) 2 ° and (100) deviating (111) 6 °. When the crystal surface is more inclined from (100) to (111) crystal surface, the amount of scratch bulge is lower.