Sol-gel precursor and method for formation of ferroelectric mate

Details Sol-gel precursor and method for formation of ferroelectric mate Sol-gel precursor and method for formation of ferroelectric mate

1996-07-25

2000-05-23

Lovering, Richard D.

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

10628719, 252 629PZ, 4273762, 501134, 501135, 501136, 501137, 516 98, C03C 300, C04B 3549, C04B 35491, C04B 35624

Patent

active

060665815

ABSTRACT:
A sol-gel precursor mixture for forming a perovskite ferroelectric material and a method for forming a ferroelectric material are provided. The precursor solution comprises a sol-gel formulation of a mixture of an inorganic salt of at least one metal, and metal-organic compounds of other constituent metals in a suitable pH controlled aqueous solvent mixture to form a stable, clear sol-gel mixture. The precursor solution and method provides for formation of thin layers of other ferroelectric dielectrics and piezoelectric materials, particularly lead containing materials, for application including non-volatile DRAMs, optoelectronic devices relying on non-linear optical properties, and piezoelectric devices, and is compatible with processing for submicron device structures for bipolar, CMOS or bipolar CMOS circuits.

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