Dielectric composition, dielectric element, electronic component and laminated electronic component

A method for providing a laminated ceramic capacitor, the method comprising:

• providing a dielectric starting material form powders of bismuth oxide (Bi2O3), sodium carbonate (Na2CO3), strontium carbonate (SrCO3) and titanium oxide (TiO2);
• preparing a green chip using a sheet method or a printing method employing a paste for dielectric layers and a paste for internal electrodes, wherein the paste for the dielectric layers is an organic paint comprising a mixture of the dielectric starting material and an organic vehicle or wherein the paste for the dielectric layers is an aqueous paint comprising a mixture of the dielectric starting material and an aqueous vehicle;
• performing a debinding treatment of the green chip;
• baking the green chip thereby forming a dielectric composition;
• printing or transcribing external electrodes on the dielectric composition;
• and
• baking the dielectric composition comprising a dielectric composition,
• wherein the dielectric starting material is weighed out such that the dielectric composition comprises particles having a perovskite crystal structure including at least Bi, Na, Sr and Ti,
• wherein the dielectric composition includes at least one element selected from the group consisting of La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Yb, Ba, Ca, Mg and Zn,
• wherein a content of the at least one element selected from the group consisting of La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Yb, Ba, Ca, Mg and Zn is between 0.5 molar parts and 11.1 molar parts, taking a Ti content of the dielectric composition as 100 molar parts,
• wherein 0.17≤α≤2.83, where α is a molar ratio of Bi with respect to Sr in the dielectric composition,
• wherein at least some of the particles include a high-Bi phase having a Bi concentration of at least 1.2 times a mean Bi concentration of the dielectric composition as a whole, and
• wherein a total surface area of the high-Bi phase within the particles in a cross section of the dielectric composition is between 0.1% and 15% of the total surface area of the particles.