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US 8,044,760 B2Granted
Four-layer element and method for producing a four-layer element
AssigneeEpcos AG
InventorsThomas Feichtinger, Guenter Engel, Volker Wischnat, Thomas Hoelbling
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Abstract
A multilayer element has a body in which at least one first internal electrode and at least one second internal electrode are arranged. These internal electrodes have an overlapping region, which extends up to the surface of the body on at least one side. The internal electrodes have a recess in a corner region of the body.
Claims20
A multilayer element comprising:
- a body;
- a first internal electrode arranged in the body;
- and
- a second internal electrode arranged in the body,
- wherein the first and second internal electrodes have an overlapping region that extends to a surface of the body on at least one side,
- wherein the first and second internal electrodes each have a recess in a respective corner region of the body, and
- wherein the first and second internal electrodes have outer edges meeting the surface of the body, the outer edges being covered by a passivation layer.
4 more elements
A method for producing a multilayer element, the method comprising:
- applying an internal electrode paste to ceramic foils;
- stacking the ceramic foils on top of each other;
- laminating the stack of ceramic foils;
- decarburizing the stack of ceramic foils;
- sintering the stack of ceramic foils;
- and
- applying a passivation layer to at least parts of the stack of ceramic foils such that outer edges of internal electrodes are covered by a passivation layer.
4 more elements
A multilayer element comprising:
- a body;
- a first internal electrode arranged in the body;
- a second internal electrode arranged in the body;
- a third internal electrode arranged in the body;
- and
- a fourth internal electrode arranged in the body,
- wherein the first and second internal electrodes have an overlapping region, which extends to a surface of the body on at least one side,
- wherein the first and second internal electrodes each have a recess in a respective corner region of the body,
- wherein the third and fourth internal electrodes have an overlapping region that extends up to the surface of the body on at least one side,
- wherein the first and second internal electrodes form a first functional unit, and
- wherein the third and fourth internal electrodes form a second functional unit that is separated from the first functional unit by a separation region.
8 more elements
Dependencies are inferred from the claim text.