Layered product and capacitor
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsKazuyoshi Honda, Noriyasu Echigo, Masaru Odagiri, Nobuki Sunagare, Shinichi Suzawa
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Abstract
A layered product including a plurality of deposition units, each having a thin resin layer and a thin metal layer wherein the surface roughness of the thin resin layer is 0.1 μm or below, a protrusion forming component is not added to the thin resin layer or the surface roughness of the thin metal layer is 0.1 μm or below. The surface characteristics are improved regardless of the thickness of the layered product and the requirement of high performance thin film can be satisfied because the layered product contains no foreign matter. The layered product is suitably applicable to electronic parts, e.g., a capacitor, especially a chip capacitor.
Claims31
A layered product comprising an element layer, reinforcement layers deposited on both sides of the element layer, and protective layers deposited further on both sides of the reinforcement layers,
- wherein the element layer comprises a plurality of deposition units, each deposition unit comprising a dielectric layer, and a metal thin film layer that is deposited on one surface of the dielectric layer, the metal thin film layer being absent from a belt-shaped electrically insulating portion at one end of the surface of the dielectric layer, and is deposited in such a manner that the electrically insulating portions of adjacent deposition units are positioned on opposite sides;
- and
- the reinforcement layers comprise a deposition unit that comprises a resin layer, and a metal layer that is deposited on one surface of the resin layer, the metal layer being absent from a belt-shaped electrically insulating portion on one end of the surface of the resin layer.
A layered product comprising an element layer and reinforcement layers deposited on both sides of the element layer,
- wherein the element layer comprises a plurality of deposition units, each deposition unit comprising a dielectric layer, and a metal thin film layer that is deposited on one surface of the dielectric layer, the metal thin film layer being absent from a belt-shaped electrically insulating portion on one end of the surface of the dielectric layer, and is deposited in such a manner that the electrically insulating portions of adjacent deposition units are positioned on opposite sides;
- the reinforcement layers comprise a deposition unit that comprises a resin layer, and a metal layer that is deposited on one surface of the resin layer, the metal layer being absent from a belt-shaped electrically insulating portion on one end of the surface of the resin layer;
- and
- at least one of the following conditions is satisfied:
- a thickness of the dielectric layer is different from a thickness of the resin layer;
- a thickness of the metal thin film layer is different from a thickness of the metal layer.
Dependencies are inferred from the claim text.