US 2002/0159220 A1 · Layered product and capacitor

Abstract

A layered product comprising a plurality of deposition units, each comprising 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.

Claims57

Dependent claims

A layered product comprising a plurality of deposition units, each of which includes a resin thin film layer and a metal thin film layer, wherein a surface roughness of the resin thin film layer is not more than 0.1 μm.

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 satisfies A or B below, and the reinforcement layer satisfies C or D below:
A:
A plurality of deposition units, each of which comprises a dielectric layer, a first metal thin film layer and a second metal thin film layer that are deposited on one surface of the dielectric layer and separated by a belt-shaped electrically insulating portion, are deposited in such a manner that the electrically insulating portions of adjacent deposition units are deposited in different positions;
B:
A plurality of deposition units, each of which comprises a dielectric layer and a metal thin film layer that is deposited on one surface of the dielectric layer and in a portion except a belt-shaped electrically insulating portion on one end of the surface of the dielectric layer, are deposited in such a manner that the electrically insulating portions of adjacent deposition units are positioned in opposite sides;
C:
comprising a deposition unit that comprises a resin layer, a first metal layer and a second metal layer that are deposited on one surface of the resin layer and separated by a belt-shaped electrically insulating band;
and
D:
comprising a deposition unit that comprises a resin layer and a metal layer that is deposited on one surface of the resin layer and in a portion except a belt-shaped electrically insulating band on one end of the surface of the resin layer.

7 more elements

A layered product comprising an element layer and reinforcement layers deposited on both sides of the element layer,

wherein the element layer satisfies A or B below, the reinforcement layer satisfies C or D below, and further at least one of E or F is satisfied:
A:
A plurality of deposition units, each of which comprises a dielectric layer, a first metal thin film layer and a second metal thin film layer that are deposited on one surface of the dielectric layer and separated by a belt-shaped electrically insulating portion, are deposited in such a manner that the electrically insulating portions of adjacent deposition units are deposited in different positions;
B:
A plurality of deposition units, each of which comprises a dielectric layer and a metal thin film layer that is deposited on one surface of the dielectric layer and in a portion except a belt-shaped electrically insulating portion on one end of the surface of the dielectric layer, are deposited in such a manner that the electrically insulating portions of adjacent deposition units are positioned on opposite sides;
C:
comprising a deposition unit that comprises a resin layer, a first metal layer and a second metal layer that are deposited on one surface of the resin layer and separated by a belt-shaped electrically insulating band;
D:
comprising a deposition unit that comprises a resin layer and a metal layer that is deposited on one surface of the resin layer and in a portion except a belt-shaped electrically insulating band on one end of the surface of the resin layer;
E:
The thickness of the dielectric layer is different from that of the resin layer;
F:
The thickness of the metal thin film layer is different from that of the metal layer.

10 more elements

Dependencies are inferred from the claim text.

Layered product and capacitor

Life of this patent

Layered product and capacitor

Life of this patent

Abstract

Claims57