Electronic device and method for producing electronic device
AssigneeTDK Corporation
InventorsNorihisa ANDO, Yoshitomo MATSUSHITA
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Abstract
To provide electronic device and method for producing electronic device having high mechanical strength. An electronic device comprised of a plurality of internal electrode layers and dielectric layers alternately laminated wherein particle size of first dielectric particles which contact at one laminating direction end face of said internal electrode layer is larger than particle size of second dielectric particles which contact at another laminating direction end face of said internal electrode layers; and a thickness of a first ceramic layer formed by said first dielectric particles is smaller than a thickness of a second ceramic layer formed by said second dielectric particles.
Claims9
An electronic device comprised of a plurality of internal electrode layers and dielectric layers alternately laminated wherein
- particle size of first dielectric particles which contact at one laminating direction end face of said internal electrode layer is larger than particle size of second dielectric particles which contact at another laminating direction end face of said internal electrode layers;
- and
- a thickness of a first ceramic layer formed by said first dielectric particles is smaller than a thickness of a second ceramic layer formed by said second dielectric particles.
A method for producing an electronic device comprising steps of;
- preparing a paste for internal electrode layer including first ceramic particles and conductive particles,
- preparing a paste for dielectric layer including second ceramic particles,
- obtaining a green sheet by coating said paste for dielectric layer to a support body,
- obtaining a sheet unit in which an internal electrode pattern layer is formed by said paste for internal electrode layer on said green sheet, and
- obtaining a green chip by laminating said sheet unit, wherein
- a density of said first ceramic particles existing near a face of said internal electrode pattern layer formed on said sheet unit, which does not contact to said green sheet, is larger than a density of said first ceramic particles existing near a face of said internal electrode pattern layer, which contacts to said green sheet.
Dependencies are inferred from the claim text.