ESD protection device and manufacturing method for same
AssigneeMurata Manufacturing Co., Ltd.
InventorsKatsumi Yasunaka, Jun Adachi
Life of this patent
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Abstract
An ESD protection device includes a bare unitary body, and a first discharge electrode and a second discharge electrode that are disposed inside the bare unitary body. The first discharge electrode and the second discharge electrode are opposed to each other with a gap interposed therebetween. The bare unitary body includes a cavity in which the gap between the first discharge electrode and the second discharge electrode is located, and to which the first discharge electrode and the second discharge electrode are exposed. A first space of the cavity on a side closer to the first discharge electrode is smaller than a second space of the cavity on a side closer to the second discharge electrode.
Claims18
An ESD protection device comprising:
- a body including a cavity;
- and
- a first discharge electrode and a second discharge electrode that are located inside the body;
- wherein
- the first discharge electrode and the second discharge electrode are opposed to each other with a gap located therebetween;
- the gap between the first discharge electrode and the second discharge electrode is located in the cavity of the body;
- the first discharge electrode and the second discharge electrode are exposed to the cavity of the body;
- the cavity includes a first space located on a side of the cavity closer to the first discharge electrode and a second space located on a side of the cavity closer to the second discharge electrode;
- the first space of the cavity is smaller than the second space of the cavity;
- and
- a degree of concentration of an electric field in the first space is larger than a degree of concentration of an electric field in the second space.
Dependencies are inferred from the claim text.