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EP0433176A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

A multilayer hybrid circuit

Assignee: TDK Corp
•
Filing: 1990-12-13
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Granted: —
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Expires: 2010-12-13
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Abstract

Abstract A multilayer hybrid circuit having a laminated body having at least one of a plurality of dielectric layers, dielectric magnetic layers, and conductive patterns on said dielectric layers and said magnetic layers, is produced through printing process and sintering process, and composes capacitors, inductors, and resistors. An external connection is effected by side terminals positioned on side walls of the laminated body. A coupling conductor which is perpendicular to a dielectric plane is provided for coupling elements on different planes. Said coupling conductor is a succession of essentially S-shaped conductor chips or lines with the ends connected to adjacent conductor chips on different planes. That coupling conductor functions via a through hole conductor in a prior printed circuit board, and has high operational reliability in a component which is produced through sintering process. In one embodiment, an inductor is produced by a pair of coils connected in series with each other to reduce the thickness of the laminated body while providing high inductance.

Inventors

  • 👤 Minoru Takaya
  • 👤 Yoshinori Mochizuki
  • 👤 Katsuharu Yasuda

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-07 16:50
CPC Classifications
H; H03; H03H; H03H7/00; H03H7/01; H03H7/09; H03H7/17; H03H7/1708; H03H7/1716; H03H7/1725; H03H7/1741; H03H7/1758; H03H7/1766; H05; H05K; H05K1/00; H05K1/16; H10; H10D; H10D86/00; H10D86/80; H10D86/85; H03H1/00; H03H2001/0021; H03H2001/0085

Claims Analysis

Total Claims: 9
Claim 1
Independent Claim 266 words
A multilayer hybrid circuit comprising an essentially flat-shaped laminated body which includes at least one selected from a capacitor, an inductor, a resistor, and an inner wiring portion which couples said capacitor, said inductor and/or said resistor with each other, and a plurality of side terminals provided on side walls of said laminated body for external connection of said capacitor, said inductor, and said resistor, said capacitor including a dielectric layer and conductive layers on said dielectric layer, said inductor including a dielectric magnetic layer and a plurality of conductive wire layers composing a coil by sandwiching said magnetic layer between conductive wire layers, said resistor including a dielectric layer and a resistor layer deposited on said dielectric layer together with a conductive layer as a lead line, said inner wiring portion having at least one dielectric layer, a conductive layer deposited on said dielectric layer according to desired wiring pattern, a coupling conductor penetrating said dielectric layers of at least one of said capacitor, said inductor, said resistor and said inner wiring portion, in perpendicular direction to dielectric layer plane, for connecting conductive patterns on different dielectric layers, at least one of said dielectric layers having a hole to accept said coupling conductor, and said coupling conductor comprising a plurality of elongated conductive chips in essentially S-shaped through said hole on said dielectric layer, each of said conductive chips being deposited partly on an adjacent conductor chip and partly on a dielectric layer so that succession of the conductor chips forms an elongated conductor perpendicular to dielectric layer plane through said holes on dielectric layers.
Claim 2
Dependent Claim 73 words
A multilayer hybrid circuit according to claim 1, wherein at least one of said inductors has a plurality of coils having an essentially common axis wound in opposite direction and connected in series on the plane where one ends of each coils reside so that flux by each coils is in the same direction, and wherein conductive wire layers composing a part of each coils are deposited on the same dielectric magnetic layers.
Claim 3
Dependent Claim 22 words
A multilayer hybrid circuit according to claim 1, wherein a hole on a dielectric layer is alternately shifted for every dielectric layer.
Claim 4
Dependent Claim 23 words
A multilayer hybrid circuit according to claim 3, wherein the length of shift is in the range between 300 µm and 1200 µm.
Claim 5
Dependent Claim 19 words
A multilayer hybrid circuit according to claim 1, wherein said laminated body mounts an electronic component on said body.
Claim 6
Dependent Claim 19 words
A multilayer hybrid circuit according to claim 1, wherein said coupling conductor extends on surface of the laminated body.
Claim 7
Dependent Claim 216 words
A multilayer hybrid circuit comprising an essentially flat-shaped laminated body which includes at least one selected from a capacitor, an inductor, a resistor, and an inner wiring portion which couples said capacitor, said inductor and/or said resistor with each other, and a plurality of side terminals provided on side walls of said laminated body for external connection of said capacitor, said inductor, and said resistor, said capacitor including a dielectric layer and conductive layers on said dielectric layer, said inductor including a dielectric magnetic layer and a plurality of conductive wire layers composing a coil by sandwiching said magnetic layer between conductive wire layers, said resistor including a dielectric layer and a resistor layer deposited on said dielectric layer together with a conductive layer as a lead line, said inner wiring portion having at least one dielectric layer, a conductive layer deposited on said dielectric layer according to desired wiring pattern, at least one of said inductors has a plurality of coils having an essentially common axis wound in the opposite direction and connected in series on the plane where one ends of each coils reside so that flux by each coils is in the same direction, and wherein conductive wire layers composing a part of each coils are deposited on the same dielectric magnetic layers.
Claim 8
Dependent Claim 15 words
A multilayer hybrid circuit according to claim 5, wherein two coils are connected in series.
Claim 9
Dependent Claim 15 words
A multilayer hybrid circuit according to claim 5, wherein three coils are connected in series.

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