Patent ID: 6343855
Filing Date: 2002-02-05
Classification: B41J,C23C,H01L

Abstract:
A ferroelectric element comprising a ferroelectric material containing at least two metals and in-situ produced fine particles of a ferroelectric material which are distributed in said ferroelectric material and have an identical or similar crystal structure to that of said ferroelectric material, said ferroelectric element having been produced by a process comprising the steps of: providing a solution of alkoxides of the respective metals as starting compounds; hydrolyzing the metal alkoxides in the presence of a catalytic amount of a protonic acid to increase the molecular weight thereof and form a sol-like solution; adding a film-forming polymer material to the sol-like solution prepared in the step of increasing the molecular weight to prepare a sol-like ferroelectric precursor solution; adding a binder material to the sol-like ferroelectric precursor solution to accelerate gelation of the solution and produce fine particles of a ferroelectric precursor in the sol-like ferroelectric precursor solution; and forming a ferroelectric element from said sol-like ferroelectric precursor solution containing said fine particles.