A laminated film structure, method of manufacturing, and a preferable
electronic element using the structure. The effective polarization into
the electric field can be realized in the direction of crystal axis by
enhancing the crystal property and alignment property of the
ferroelectric substance film formed through epitaxial growth with
reference to the plane alignment of semiconductor substrate. After the
yttrium stabilized zirconium film and a film of the rock salt structure
are sequentially formed with epitaxial growth on a semiconductor
substrate, the ferroelectric substance film of simple Perovskite
structure is also formed with epitaxial growth. The ferroelectric
substance film can improve the crystal property and alignment property
thereof by rotating the plane for 45 degrees within the plane for the
crystal axis of the yttrium stabilized zirconium.