Non-linear resistive element and manufacturing method thereof
AssigneeOtowa Electric Co., Ltd.
InventorsHideyuki Okinaka, Naoyuki Tsukamoto, Toshihiko Suzuki, Hiroyuki Otsuki
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Abstract
Provided is a technique to secure compositional or microstructural uniformity of a ceramic sintered body while increasing the area of the ceramic sintered boy, thus improving basic performance including non-linearity, maximum withstand energy and aging characteristics. A plurality of small varistor pieces 11 and insulating resin are kneaded and extruded for shaping, whereby a sheet-form varistor layer 13 can be formed where a plurality of small varistor pieces 11 are spaced from one another and are aligned on the same plane, and the adjacent small varistor pieces 11 are bonded via insulating resin.
Claims8
A non-linear resistive element, comprising:
- a varistor layer in a sheet form having a surface and a rear face that are parallel to each other;
- and conductive electrode layers joined to the each of the surface and the rear face of the varistor layer,
- wherein
- the varistor layer includes:
- a plurality of small varistor pieces that are made of a ceramic sintered body and are spaced from one another for alignment, each small varistor piece having a surface and a rear face coinciding with the surface and the rear face of the varistor layer, respectively;
- and insulating junctions that join the adjacent small varistor pieces.
Dependencies are inferred from the claim text.