| 摘要 |
<p>To provide a semiconductor device with high performance and low cost and a manufacturing method thereof. A first region including a separated (cleavage) single-crystal semiconductor layer and a second region including a non-single-crystal semiconductor layer are provided over a substrate. It is preferable that laser beam irradiation be performed to the separated (cleavage) single-crystal semiconductor layer in an inert atmosphere, and laser beam irradiation be performed to the non-single-crystal semiconductor layer in an air atmosphere at least once.</p> |
