| 摘要 |
PROBLEM TO BE SOLVED: To provide a semiconductor device which reduces the strength of an electric wave propagating through a semiconductor substrate and returning to an element layer.SOLUTION: A semiconductor device 10 includes: a first surface 10a and a second surface 10b; an element layer 12 disposed at the first surface 10a side; a semiconductor substrate 11 forming the second surface 10b; and multiple grooves 20 disposed on the second surface 10b in a cyclic manner. |
