| 摘要 |
A semiconductor substrate is a semiconductor substrate used when an SOI substrate having an SOI structure is manufactured, in which a silicon oxide film and a silicon single crystal layer are formed on the surface of a silicon substrate. A region containing no nitrogen, which is made of a silicon single crystal layer with a thickness of 10 μm or less, is formed in the vicinity of the surface, and the nitrogen concentration of a portion excluding the region, that is, the region containing nitrogen, is in a range of 1×1013 to 5×1015 atoms/cm3.
|
