Multilayer varistor
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorsYuto Akiyama, Ken Yanai, Ryosuke Usui, Yuji Yamagishi, Masashi Takamura
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Abstract
A multilayer varistor according to the present disclosure includes; a sintered compact; an internal electrode provided inside the sintered compact; a high-resistivity layer arranged to cover the sintered compact at least partially; and an external electrode arranged to cover the high-resistivity layer partially and electrically connected to the internal electrode. The high-resistivity layer includes a thinner region having a smaller thickness than a surrounding region that surrounds the thinner region.
Claims5
A multilayer varistor comprising:
- a sintered compact;
- an internal electrode provided inside the sintered compact;
- a high-resistivity layer arranged to cover the sintered compact at least partially;
- and
- an external electrode arranged to cover the high-resistivity layer partially and electrically connected to the internal electrode, wherein:
- the high-resistivity layer includes a thinner region having a smaller thickness than a surrounding region that surrounds the thinner region, and
- the thinner region has an opening exposing a part of the sintered compact underlying the high-resistivity layer to an air, and the sintered compact includes an exposed portion exposed through the opening to be brought into contact with O2 in the air.
A multilayer varistor comprising:
- a sintered compact;
- an internal electrode provided inside the sintered compact;
- a high-resistivity layer arranged to cover the sintered compact at least partially;
- and
- an external electrode arranged to cover the high-resistivity layer partially and electrically connected to the internal electrode, wherein:
- the high-resistivity layer includes a thinner region having a smaller thickness than a surrounding region that surrounds the thinner region,
- the thinner region has an opening exposing a part of the sintered compact underlying the high-resistivity layer, and the sintered compact includes an exposed portion exposed through the opening, and
- the exposed portion has an average longitudinal dimension equal to or greater than 1 μm and equal to or less than 50 μm.
Dependencies are inferred from the claim text.