IP Library Granted Patent US 11,568,192
Granted Patent B2
US 11,568,192 · App. 17/167,694 · Granted Jan 31, 2023

Multilayer chip component

Inventors: Gaku Echigoya (Tokyo, JP); Hiroshi Satou (Tokyo, JP); Keijiro Ishida (Tokyo, JP); Hajime Kudo (Tokyo, JP)
Assignee: TDK CORPORATION
G06K19/06046G06K19/06037H01F27/02H01G2/24
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Quick Facts
Patent No.
US 11,568,192
App. No.
17/167,694
Granted
Jan 31, 2023
Kind
B2
Abstract

In a multilayer chip component according to an aspect of the present disclosure, dots of a two-dimensional code provided on a main surface of an element body has a semicircular cross-sectional shape. That is, since substantially no corner portions are present in a cross-sectional shape of the dots, stress is unlikely to remain when the dots are formed, and stress is unlikely to be concentrated after the dots are formed. Therefore, cracking is unlikely to occur in the foregoing multilayer chip component.

Claims (19)

1. A multilayer chip component comprising:

an element body having (1) a lamination structure including a plurality of ceramic layers and (2) a main surface orthogonal to a lamination direction with a code including a plurality of spaced dot-shaped recesses, wherein

each of the plurality of spaced dot-shaped recesses has a semicircular cross-sectional shape, an arc cross-sectional shape, a U-shape cross-sectional shape or a parabolic cross-sectional shape in a plane parallel to the lamination direction, and

a depth of the each of the plurality of spaced dot-shaped recesses is longer than a separation distance between any two of the spaced dot-shaped recesses adjacent to each other.

2. The multilayer chip component according to claim 1 ,

wherein the each of the plurality of spaced dot-shaped recesses has a circular shape in a plan view.

3. The multilayer chip component according to claim 1 , wherein

the element body has rounded corners, and

the depth of the each of the plurality of spaced dot-shaped recesses is shorter than a radius of curvature of the corners of the element body.

4. The multilayer chip component according to claim 1 ,

wherein the element body includes a surface layer constituting the main surface and a functioning layer positioned inside the surface layer, and the depth of the each of the plurality of spaced dot-shaped recesses is shorter than a thickness of the surface layer.

5. The multilayer chip component according to claim 1 further comprising:

a film on the main surface of the element body,

wherein the code is formed on the film.

6. A multilayer chip component comprising:

an element body having (1) a lamination structure including a plurality of ceramic layers and (2) a main surface orthogonal to a lamination direction with a code including a plurality of spaced dot-shaped recesses, wherein

each of the plurality of spaced dot-shaped recesses has a semicircular cross-sectional shape, an arc cross-sectional shape, a U-shape cross-sectional shape or a parabolic cross-sectional shape in a plane parallel to the lamination direction,

the element body includes a surface layer constituting the main surface and a functioning layer positioned inside the surface layer, and

a depth of the each of the plurality of spaced dot-shaped recesses is shorter than a thickness of the surface layer.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 4, 2021
From: ECHIGOYA, GAKU; SATOU, HIROSHI; ISHIDA, KEIJIRO; KUDO, HAJIME
To: TDK CORPORATION
Reel/Frame 055151/0807 →
Priority Claims (1)
JP JP2020-018695 · Feb 6, 2020 · national
Continuity (1)
Related Publication 20210248437A1 · Aug 12, 2021