As MOS devices are scaled down to the deep-submicrometer region, the thickness of silicon oxide also scales down. 当金氧半元件缩小至深次微米区域，矽氧化层的厚度也随之变薄。
If it has a good conservation,and no polish,the blade should be covered with an oxidation layer,and beautiful pattern. 如果保存形态好，没有打磨，则剑身应泛淡淡的氧化层，同时也可以让我们一窥美丽的花纹。
