A material of low viscosity is applied to a ferroelectric film 32 formed by MOCVD to form a buried layer 34. Then, anisotropic etching is made on the entire surface to remove the tops of convexities on the surface of the ferroelectric film 32, and the buried layer 34 remaining on the surface of the ferroelectric film 32 is removed. Thus, the surface morphology of the ferroelectric film 32 is improved and planarized. When the conduction film 36 and the ferroelectric film 32 are patterned by photolithography, prescribed patterns as designed can be formed without reflecting the incident exposure light in various directions. The method for fabricating a semiconductor device improves the surface morphology of the ferroelectric film formed by metal organic chemical vapor deposition.

 
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