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US 2006/0231014 A1Published application
Precursor solution, method of preparation thereof and use thereof
AssigneeNXP B.V.
InventorsJoerg Meyer, Mareike Klee, Rainer Kiewitt
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Abstract
Crystalline, single-phased layers of PbMg0.33 Nb0.6703 with relative dielectric constants of 1500 and more are prepared through the use of a precursor solution that comprises a macrocyclic complexing agent. This agent is added to the lead component in an organic solution. The resulting layer is part of a device which may further include semiconductor elements and resistors.
Claims11
A method of preparing a precursor solution for a crystalline layer comprising an oxide of lead, niobium and a third metal, comprising the steps of:
- providing a first solution of a lead salt that is chelated with a macrocyclic compound having a cavity corresponding to the size of the lead-ion, in a solvent chosen from the group of alkoxyalcohols;
- providing a second solution comprising niobium in the form of alcoholates;
- and
- mixing the first and the second solution.
1 more element
Dependencies are inferred from the claim text.