Nonlinear resistor and method of manufacturing the same
AssigneeKabushiki Kaisha Toshiba
InventorsToshiya Imai, Hideyasu Ando, Susumu Nishiwaki
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Abstract
A non-linear resistor comprises a sintered body having zinc oxide as a main component, a side-surface high resistance layer arranged at a side-surface of the sintered body, and an electrode arranged at upper and lower surfaces of the sintered body. The side-surface high resistance layer is formed of a specifically selected material. The end-to-end distance between an end portion of the electrode and a nonlinear resistor end portion including the side-surface high resistance layer falls within a range of 0 mm to the thickness of the side-surface high resistance layer+0.01 mm.
Claims9
A non-linear resistor comprising
- a sintered body having zinc oxide as a main component;
- a side-surface high resistance layer arranged at a side-surface of the sintered body;
- and
- an electrode arranged at upper and lower surfaces of the sintered body,
- wherein
- an end-to-end distance between an end portion of the electrode and a nonlinear resistor end portion including the side-surface high resistance layer falls within a range of 0 mm to a thickness of the side-surface high resistance layer+0.01 mm;
- the side-surface high resistance layer is formed of at least one element selected from substances containing, as a main substance, an inorganic polymer substance having electric insulating characteristics and heat resistance, an amorphous inorganic polymer substance, a glass compound, an amorphous inorganic substance, a crystalline inorganic substance, and an organic polymer compound, and
- the side-surface high resistance layer is adhered to the sintered body so as to have a shock adhesive strength of 40 mm or more, the shock adhesive strength being a height at which the side-surface high resistance layer is peeled off from the sintered body when the nonlinear resistor having the side-surface high resistance layer is tilted by an angle of 45 degrees to the horizontal surface and a ball of 100 g is dropped from the height to a corner portion of the nonlinear resistor to collide with the nonlinear resistor.
A non-linear resistor comprising:
- a sintered body comprising zinc oxide as a main component;
- a side-surface high resistance layer arranged at a side-surface of the sintered body;
- and
- an electrode arranged at upper and lower surfaces of the sintered body,
- wherein
- an end-to-end distance between an end of the electrode and an end of the nonlinear resistor including the side-surface high resistance layer falls within a range of 0 mm to a thickness of the side-surface high resistance layer+0.01 mm, and
- the side-surface high resistance layer is formed of one member selected from the group consisting of:
- a complex of an amorphous silica with an organosilicate,
- a combination of a crystalline inorganic substance containing Zn—Si—O as a constitutional component with a crystalline inorganic substance containing Zn—Sb—Fe—O as a constitutional component,
- a mullite-containing aluminum phosphate based inorganic adhesive agent,
- an alumina-containing aluminum phosphate based inorganic adhesive agent,
- a silica-containing aluminum phosphate based inorganic adhesive agent,
- a cordierite-containing aluminum phosphate based inorganic adhesive agent,
- a combination of a Zn—Si—O crystalline inorganic substance with a Zn—Sb—O crystalline inorganic substance,
- a combination of a Fe—Mn—Bi—Si—O crystalline organic substance with a Zn—Sb—O crystalline inorganic substance, and
- an alumina-containing epoxy resin.
Dependencies are inferred from the claim text.