In a semiconductor device including a laminate of a first insulating
layer, a crystalline semiconductor layer, and a second insulating layer,
characteristics of the device are improved by determining its structure
in view of stress balance. In the semiconductor device including an
active layer of the crystalline semiconductor layer having tensile stress
on a substrate, tensile stress is given to the first insulating layer
formed to be in close contact with a surface of the semiconductor layer
at a substrate side, and compressive stress is given to the second
insulating layer formed to be in close contact with a surface of the
semiconductor layer at a side opposite to the substrate side.