Electronic device sheet

Patent metadata

Field	Value
Publication number	US-10062507-B2
Application number	US-201615331447-A
Country	US
Kind code	B2
Filing date	Oct 21, 2016
Priority date	Sep 2, 2015
Publication date	Aug 28, 2018
Grant date	Aug 28, 2018

Abstract

An electronic device sheet, comprising a pair of electrodes, a dielectric layer provided between the pair of electrodes, and one or more insulation patch members provided on one of principal surfaces of the dielectric layer, wherein the insulation patch member includes a boundary line having an undulating shape.

First claim

What is claimed is:

1. An electronic device sheet, comprising a pair of electrodes, a dielectric layer provided between the pair of electrodes, and one or more insulation patch members provided on one of principal surfaces of the dielectric layer, wherein
the one or more insulation patch members include a boundary line having an undulating shape,
projecting portions of the boundary line include regions residing outside an imaginary circle that is centered on a center of gravity of the one or more insulation patch members and that has a same area as the one or more insulation patch members,
recessed portions of the boundary line include regions residing inside the imaginary circle,
a ratio L/r between a radius r of the imaginary circle and a maximum distance L of distances from the center of the imaginary circle to the projecting portions is 1.02 to 1.4, and
a ratio S/r between the radius r of the imaginary circle and a minimum distance S of distances from the center of the imaginary circle to the recessed portions is 0.6 to 0.98.

2. The electronic device sheet according to claim 1 , wherein the dielectric layer includes a nucleus portion, and the nucleus portion is covered with the one or more insulation patch members.

3. The electronic device sheet according to claim 1 , wherein the one or more insulation patch members includes 2 to 120 of the projecting portions and 2 to 120 of the recessed portions.

4. The electronic device sheet according to claim 1 , wherein the principal surface includes thereon two or more of the insulation patch members, and a closest distance between the two or more insulation patch members is 100 μm to 5 mm.

5. An electronic device sheet, comprising a pair of electrodes, a dielectric layer provided between the pair of electrodes, and two or more insulation patch members provided on one of principal surfaces of the dielectric layer, wherein
the two or more insulation patch members include a boundary line having an undulating shape, and
a closest distance between the two or more insulation patch members is 100 μm to 5 mm.

6. The electronic device sheet according to claim 5 , wherein the dielectric layer includes a nucleus portion, and the nucleus portion is covered with the two or more insulation patch members.

7. The electronic device sheet according to claim 5 , wherein the two or more insulation patch members include 2 to 120 of the projecting portions 2 to 120 of the recessed portions.

Assignees

• Tdk Corp

Inventors

• Aotani Junji
• Tanaka Shigeaki
• Kurachi Katsuyuki
• Namikawa Tatsuo
• Aburakawa Yuuki

Classifications

• H01G4/06 Primary

  Solid dielectrics · CPC title

• H01G4/33 Primary

  Thin- or thick-film capacitors {(thin- or thick-film circuits; capacitors without a potential-jump or surface barrier specially adapted for integrated circuits, details thereof, multistep manufacturing processes therefor)} · CPC title

• H01G4/35

  Feed-through capacitors or anti-noise capacitors · CPC title

• H01G4/1227

  based on alkaline earth titanates · CPC title

• H01G2/14

  Protection against electric or thermal overload (by cooling H01G2/08) · CPC title