| 摘要 |
A production method of a semiconductor device, includes the steps of emitting an excimer laser from a light source, illuminating a pattern on a mask with the excimer laser emitted from the light source and passed through a filter, exposing a resist on a substrate of the semiconductor with the excimer laser passed through the mask, and forming a pattern on the substrate in accordance with a portion of the resist exposed with the excimer laser.
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