Ceramic electronic component and method for manufacturing the same
AssigneeMurata Manufacturing Co., Ltd.
InventorsHideki Otsuka, Kazuhiro Yoshida, Jun Sonoyama, Yoji Itagaki, Akihiko Nakata
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Abstract
A ceramic electronic component has a ceramic element assembly, external electrodes, and metal terminals. The external electrodes are arranged on the surface of the ceramic element assembly. The external electrodes contain a sintered metal. The metal terminals are electrically connected to the external electrodes, respectively. The external electrode and the metal terminal are directly diffusion-bonded by diffusion of metal in the metal terminals into the external electrodes. The above arrangement provides a ceramic electronic component having highly reliable metal particle bonding and a method for manufacturing the same.
Claims16
A ceramic electronic component comprising:
- a ceramic element assembly including a first end surface and a second end surface that are mutually opposite to one another;
- an external electrode arranged on a surface of the ceramic element assembly and including a sintered metal, the external electrode including a first external electrode that covers the first end surface and a second external electrode that covers the second end surface;
- and
- a metal terminal electrically connected to the external electrode and including a plurality of filament-shaped terminal portions disposed substantially in parallel to each other;
- wherein
- the external electrode and the metal terminal are directly diffusion-bonded to one another at a plurality of locations by diffusion of metal in the metal terminal into the external electrode;
- and
- when viewed in a direction perpendicular to at least one of the first and second end surfaces, an overlapping area where the at least one of the first and second end surfaces and the metal terminal overlap each other covers a majority of the at least one of the first and second end surfaces.
A ceramic electronic component;
- comprising:
- a ceramic element assembly including a first end surface and a second end surface that are mutually opposite to one another;
- an external electrode arranged on a surface of the ceramic element assembly and including a sintered metal, the external electrode including a first external electrode that covers the first end surface and a second external electrode that covers the second end surface;
- and
- a metal terminal electrically connected to the external electrode and including a plurality of filament-shaped terminal portions disposed substantially in parallel to each other;
- wherein
- the sintered metal is exposed at a surface of the external electrode;
- the external electrode and the metal terminal are directly diffusion-bonded to one another at a plurality of locations by diffusion of metal in the metal terminal into the external electrode;
- and
- when viewed in a direction perpendicular to at least one of the first and second end surfaces, an overlapping area where the at least one of the first and second end surfaces and the metal terminal overlap each other covers a majority of the at least one of the first and second end surfaces.
Dependencies are inferred from the claim text.