Multi-layer ceramic electronic component and method of producing the same
AssigneeTaiyo Yuden Co., Ltd.
InventorYusuke Kowase
Life of this patent
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Abstract
A multi-layer ceramic electronic component includes a multi-layer unit and a side margin. The multi-layer unit includes a functional unit including internal electrodes laminated in a first direction, and a pair of covers that covers the functional unit from both sides in the first direction, the multi-layer unit satisfying a relationship of (2*t2)/t1≥0.6, where t1 represents a dimension of the functional unit in the first direction and t2 represents a dimension of each of the pair of covers in the first direction. The side margin covers the multi-layer unit in a second direction orthogonal to the first direction.
Claims9
A multi-layer ceramic electronic component, comprising:
- a multi-layer unit including
- a functional unit including internal electrodes laminated in a first direction, and
- a pair of covers that covers the functional unit from both sides in the first direction,
- the multi-layer unit satisfying a relationship of (2*t2)/t1≥0.6, where t1 represents
- a dimension of the functional unit in the first direction and t2 represents a dimension of each of the pair of covers in the first direction;
- and
- a side margin that covers the multi-layer unit in a second direction orthogonal to the first direction,
- wherein the multi-layer ceramic electronic component has a thickness dimension (T) in the first direction, a dimension (W) in the second direction, and a dimension (L) in a third direction orthogonal to the first direction and the second direction, wherein the thickness dimension (T) is equal to or smaller than a half of a lateral dimension (LD) which is the dimension (W) in the second direction or the dimension (L) in the third direction, whichever is smaller, or T≤½ LD,
- the thickness dimension is 0.11 mm or less,
- each of the pair of covers is compositionally constituted by a single layer, and
- the side margin has a density which is lower than a density of the functional unit and a density of the pair of covers.
A method of producing a multi-layer ceramic electronic component, comprising:
- preparing an unsintered multi-layer unit including
- a functional unit including internal electrodes laminated in a first direction, and
- a pair of covers that covers the functional unit from both sides in the first direction,
- the unsintered multi-layer unit satisfying a relationship of (2*t2)/t1≥0.6 after sintering, where t1 represents a dimension of the functional unit in the first direction and t2 represents a dimension of each of the pair of covers in the first direction;
- producing an unsintered ceramic body by forming an unsintered side margin that covers the unsintered multi-layer unit in a second direction orthogonal to the first direction;
- and
- sintering the unsintered ceramic body,
- wherein the multi-layer ceramic electronic component has a thickness dimension (T) in the first direction, a dimension (W) in the second direction, and a dimension (L) in a third direction orthogonal to the first direction and the second direction, wherein the thickness dimension (T) is equal to or smaller than a half of a lateral dimension (LD) which is the dimension (W) in the second direction or the dimension (L) in the third direction, whichever is smaller, or T≤½ LD,
- the thickness dimension is 0.11 mm or less,
- each of the pair of covers is compositionally constituted by a single layer, and
- the unsintered side margin has a density which is lower than a density of the functional unit and a density of the pair of covers.
Dependencies are inferred from the claim text.