US 12,387,879 B2Granted

Multilayer electronic component and method of manufacturing multilayer electronic component

AssigneeSamsung Electro-Mechanics Co., Ltd.

InventorsJi Hyeon Lee, Jong Ho Lee, Eun Jung Lee, Yong Min Hong, Yong Park, Min Woo Kim, Jung Tae Park, Sun Mi Kim, Sim Chung Kang

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Abstract

A method of manufacturing a multilayer electronic component, the method includes, attaching a margin portion green sheet including a ceramic material, a photocuring agent, and a photoinitiator to at least one end surface of each of the plurality of cut ceramic green sheet stacked bodies in the third direction, an energy irradiation operation of irradiating, with energy, the margin portion green sheet to generate a photocuring polymerization reaction between the photocuring agent and the photoinitiator.

Claims17

Dependent claims

A method of manufacturing a multilayer electronic component, the method comprising:

preparing a first ceramic green sheet on which a plurality of first internal electrode patterns are formed at predetermined intervals and a second ceramic green sheet on which a plurality of second internal electrode patterns are formed at predetermined intervals;
forming a ceramic green sheet stacked body by alternately stacking the first ceramic green sheet and the second ceramic green sheet in a first direction such that the first internal electrode patterns and the second internal electrode patterns overlap each other in the first direction;
cutting the ceramic green sheet stacked body such that ends of the first and second internal electrode patterns are exposed in a third direction, when a direction in which the first and second internal electrode patterns have a larger size is defined as a second direction and a direction in which the first and second internal electrode patterns have a smaller size is defined as the third direction;
disposing, on an elastic pad to which an adhesive is attached, a plurality of cut ceramic green sheet stacked bodies to be spaced apart from each other;
attaching a margin portion green sheet including a ceramic material, a photocuring agent, and a photoinitiator to at least one end surface of each of the plurality of cut ceramic green sheet stacked bodies in the third direction;
an energy irradiation operation of irradiating, with energy, the margin portion green sheet to generate a photocuring polymerization reaction between the photocuring agent and the photoinitiator;
and
preparing a body including a dielectric layer, a first internal electrode, and a second internal electrode and a margin portion by sintering the cut ceramic green sheet stacked body to which the margin portion green sheet is attached.

5 more elements

A multilayer electronic component comprising:

a body including an active portion having capacitance formed by including a dielectric layer and first and second internal electrodes alternately disposed in a first direction with the dielectric layer interposed therebetween, the body having first and second surfaces opposing each other in the first direction, third and fourth surfaces connected to the first and second surfaces and opposing each other in a second direction, and fifth and sixth surfaces connected to the first to fourth surfaces and opposing each other in a third direction;
first and second external electrodes disposed on the third and fourth surfaces of the body in the second direction to be connected to the first and second internal electrodes, respectively;
and
a margin portion disposed on both end surfaces of the active portion in the third direction,
wherein ∠WT satisfies 90.0°±0.5°, where among outermost edges of cross-sections of the body in the first and third directions, an extension line of an edge in the first direction is defined as T, an extension line of an edge in the third direction is defined as W, and an angle defined by T and W is defined as ∠WT, and
the margin portion includes a ceramic material, a photocuring agent, and a photoinitiator and is formed by a photocuring polymerization reaction between the photocuring agent and the photoinitiator.

3 more elements

Dependencies are inferred from the claim text.