WO2012011527A1 - 積層型電子部品の製造方法および積層型電子部品 - Google Patents
積層型電子部品の製造方法および積層型電子部品 Download PDFInfo
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- WO2012011527A1 WO2012011527A1 PCT/JP2011/066560 JP2011066560W WO2012011527A1 WO 2012011527 A1 WO2012011527 A1 WO 2012011527A1 JP 2011066560 W JP2011066560 W JP 2011066560W WO 2012011527 A1 WO2012011527 A1 WO 2012011527A1
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- laminated
- laminate
- stick
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- conductors
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- 238000004519 manufacturing process Methods 0.000 title claims description 40
- 239000004020 conductor Substances 0.000 claims abstract description 71
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- 229910010293 ceramic material Inorganic materials 0.000 claims abstract description 24
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- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
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- 229910002113 barium titanate Inorganic materials 0.000 description 1
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- B32B38/0004—Cutting, tearing or severing, e.g. bursting; Cutter details
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- H—ELECTRICITY
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- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
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- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/40—Structural combinations of fixed capacitors with other electric elements, the structure mainly consisting of a capacitor, e.g. RC combinations
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- C04B2237/68—Forming laminates or joining articles wherein at least one substrate contains at least two different parts of macro-size, e.g. one ceramic substrate layer containing an embedded conductor or electrode
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- C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
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- C04B2237/76—Forming laminates or joined articles comprising at least one member in the form other than a sheet or disc, e.g. two tubes or a tube and a sheet or disc
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- C04B2237/80—Joining the largest surface of one substrate with a smaller surface of the other substrate, e.g. butt joining or forming a T-joint
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- H—ELECTRICITY
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y10T428/24058—Structurally defined web or sheet [e.g., overall dimension, etc.] including grain, strips, or filamentary elements in respective layers or components in angular relation
Definitions
- the present invention relates to a method for manufacturing a multilayer electronic component and a multilayer electronic component, and more particularly to an electronic component including a plurality of ceramic laminates having different lamination directions of internal conductor layers.
- multilayer electronic components are provided in which circuit elements such as circuit elements and connection conductors are distributed and arranged in a plurality of wiring layers of the multilayer body.
- circuit elements circuit elements, connection conductors, etc.
- circuit elements circuit elements, connection conductors, etc.
- Deterioration is likely to occur.
- a component structure that prevents mutual interference between circuit elements, such as an electronic component constituted by a plurality of laminated bodies having different lamination directions (see, for example, Patent Documents 1 to 4 below).
- Patent Document 1 Japanese Patent Laid-Open No. 11-195873
- Patent Document 2 Japanese Patent Laid-Open No. 2004-31743
- Patent Document 3 Japanese Patent Laid-Open No. 2009-170737
- Patent Document 4 Japanese Patent No. 3425065
- each laminated body constituting the electronic component is separately fired and bonded so that the laminating direction is different.
- Each electronic component is produced by bonding with an agent (see paragraphs 0038 to 0039 of Patent Document 2 and Patent Document 3). Accordingly, the structures described in these documents have a problem that they require labor for production and are inferior in mass productivity.
- the individual chip sizes are currently about 1 mm, 0.5 mm, and 0.35 mm in height and width, respectively, and laminates having smaller dimensions are bonded to each other.
- the positioning error becomes relatively large and high-accuracy positioning becomes much more difficult. Therefore, it is not easy to perform the bonding operation one by one for each part and perform the bonding work.
- the structure is not a realistic structure for mass-produced products.
- an object of the present invention is to obtain a new component structure of a multilayer electronic component including a plurality of ceramic laminates having different lamination directions that can easily obtain good electrical characteristics even when miniaturized.
- the object is to efficiently manufacture a multilayer electronic component.
- a manufacturing method of a multilayer electronic component according to the present invention includes (1) one or more insulating functional layers mainly composed of an unfired ceramic material, and a circuit element.
- One or more insulating functional layers mainly composed of the above and one or more conductor layers in which a plurality of conductors constituting at least part of the circuit element are two-dimensionally arranged in the vertical direction and the horizontal direction are laminated.
- a step of producing a second laminated sheet and (3) cutting the first laminated sheet into a stick shape so as to include a plurality of conductors arranged in either the longitudinal direction or the transverse direction, whereby a plurality Obtaining a first laminated stick of (4) and (4 Cutting the second laminated sheet into a stick shape so as to include a plurality of conductors arranged in either the vertical direction or the horizontal direction, thereby obtaining a plurality of second laminated sticks; (5)
- the second laminated stick is disposed so as to be sandwiched between the first laminated stick and the first laminated stick in a state in which the second laminated stick is rotated by 90 ° around the longitudinal axis of the second laminated stick.
- the method for manufacturing a multilayer electronic component according to the present invention is a method for manufacturing an electronic component having a structure in which two or more ceramic laminates having different stacking directions are joined.
- the laminated bodies in a rod-like aggregated state including multiple identical laminated bodies) as laminated sticks (first laminated stick and second laminated stick) are thermocompression-bonded (heated)
- laminates having different lamination directions are joined together and the laminates (first laminate and second laminate) having different lamination directions are in an aggregated state (a plurality of sets of laminates having different lamination directions).
- a third laminated sheet that is in a gathered state is prepared.
- the temperature at which the third laminated sheet is produced is set to a temperature lower than the firing temperature (eg, 700 to 1600 ° C.) performed after the first laminated stick and the second laminated stick are joined.
- the specific heating temperature at the time of producing the third laminated sheet differs depending on the insulating functional layer and the material of the conductor and cannot be specified unconditionally. For example, it may be about 30 to 200 ° C.
- the “insulating functional layer” is typically an insulating layer formed of a dielectric ceramic material, but is not limited to this.
- a magnetic ceramic material or a semiconductor corresponding to an element disposed in a multilayer substrate is used. It may be a material layer made of various insulating ceramic materials such as a ceramic material.
- insulating functional layers of different materials can be mixed in one laminate.
- the number of laminated bodies constituting the electronic component is not limited to two (only the first laminated body and the second laminated body).
- the electronic component may be constituted by three laminated bodies, or a structure in which four or more laminated bodies are joined can be employed.
- a third laminated stick or more in addition to the first laminated stick and the second laminated stick, a third laminated stick or more (fourth, fifth,... )
- the third laminated sheet may be prepared by similarly forming laminated sticks and combining them appropriately.
- the stacking direction of the stacked body included in the electronic component does not necessarily have to have a different stacking direction, for example, the first stacked body, the second stacked body, and the third stacked body.
- the first laminated body and the third laminated body have the same lamination direction (for example, the horizontal direction or the vertical direction).
- a plurality of stacked bodies having the same stacking direction such as different stacking directions (for example, a vertical direction or a horizontal direction) may be included.
- the method for producing the first laminated sheet and the second laminated sheet is not particularly limited.
- at least a part of the circuit element is formed on the surface of the ceramic green sheet mainly composed of an unfired ceramic material.
- a plurality of printed first ceramic sheets are printed so that the conductors constituting the two-dimensional arrangement in the vertical direction and the horizontal direction are made, and these first ceramic sheets are superposed and thermocompression bonded together.
- the first laminated sheet is produced by converting the structure.
- two conductors constituting at least a part of the circuit element are arranged in the vertical direction and the horizontal direction on the surface of the ceramic green sheet mainly composed of an unfired ceramic material. If a plurality of second ceramic sheets are printed so as to be dimensionally arranged, and the second laminated sheet is prepared by stacking and integrating the plurality of second ceramic sheets by thermocompression bonding. good.
- the method for producing the laminated sheets (first laminated sheet and second laminated sheet) in the present invention includes, for example, a conductor paste for forming a conductor and an insulator paste for forming an insulating functional layer. It is also possible to use other methods such as alternately printing and laminating.
- the multilayer electronic component according to the present invention includes a first laminate in which one or more insulating functional layers mainly composed of a ceramic material and one or more conductor layers are laminated, and a ceramic material as a main component.
- An electronic component comprising a second laminate in which one or more insulating functional layers and one or more conductor layers are laminated and joined to the first laminate, wherein the first laminate is The laminating direction of the second laminated body and the laminating direction of the second laminated body intersect each other, and the first laminated body and the second laminated body are integrated by firing.
- the lamination direction of the conductor layer of the first laminate and the lamination direction of the second laminate are substantially orthogonal to each other.
- the component structure includes a plurality of laminated bodies having different lamination directions as described above, for example, when an inductor is disposed in each of the first laminated body and the second laminated body, electromagnetic coupling between them can be prevented, Good electrical characteristics can be obtained by preventing mutual interference between circuit elements included in the electronic component, such as reducing parasitic capacitance generated between circuit elements arranged in the one laminated body and the second laminated body.
- the insulating functional layer of the first laminated body and the insulating functional layer of the second laminated body are made of the same material.
- the joining surface of the insulating functional layer and the insulating functional layer of the second laminated body forms a continuous sintered body.
- the insulating functional layer of the first laminated body and the insulating functional layer of the second laminated body are made of different materials, and these first laminated bodies There exists an interface at the bonding surface between the insulating functional layer and the insulating functional layer of the second laminate.
- the insulating property of the first laminate is formed on the bonding surface between the insulating functional layer of the first laminate and the insulating functional layer of the second laminate.
- a diffusion layer in which one or both of the material constituting the functional layer and the material constituting the insulating functional layer of the second laminate is diffused is formed.
- the bond between the first laminate and the second laminate is further strengthened, and the difference in thermal expansion coefficient between the first laminate and the second laminate is increased.
- the first layered product and the second layered product are cracked or peeled off due to temperature changes after being relaxed by the diffusion layer and incorporated into various products as a later manufacturing process or component. It is possible to prevent a failure such as damage to the general connection.
- the insulating functional layers of different materials are mixed in one laminate as described above, that is, one or both of the first laminate and the second laminate are two or more different materials.
- the interface or the diffusion layer may be present at a part of the joint surface between the first laminate and the second laminate.
- mode of the multilayer electronic component which concerns on this invention, by joining the 1st laminated body and the 2nd laminated body, in the said junction surface, of the conductors contained in a 1st laminated body The ends of one or more conductors abut on the surface of one or more conductors of the conductors included in the second laminate, whereby the conductors included in the first laminate and the conductors included in the second laminate are Are electrically connected.
- a conductor connection structure for example, a circuit element (for example, an inductor) included in one laminated body to be joined and a circuit element (for example, a capacitor) included in the other laminated body are directly connected. Or one laminated body without via vias or connecting conductors such as connecting conductor lines, such as directly connecting a ground electrode contained in one laminated body and a circuit element contained in the other laminated body. Since the various circuit elements included in and the various circuit elements included in the other laminate can be electrically connected to each other, it is possible to prevent deterioration of electrical characteristics due to the interposition of the connection conductor.
- “laminated electronic component” typically refers to a composite electronic component including a plurality of circuit elements.
- the “circuit element” include passive elements such as an inductor, a capacitor, a resistor, and a varistor.
- an active element such as a transistor and an FET, an integrated circuit including an active element such as an IC, or
- Various circuit elements such as connection conductors such as conductor lines and interlayer connection conductors (vias, through holes, etc.), ground electrodes, and terminal electrodes may be included in the multilayer electronic component (the manufacturing method of the present invention) The same applies to the above).
- the multilayer electronic component referred to in the present invention is grasped from the functional aspect (component type), for example, a filter such as a band pass filter, a low pass filter and a high pass filter, a duplexer, a diplexer, a power amplifier module, and a high frequency superposition module.
- a filter such as a band pass filter, a low pass filter and a high pass filter
- a duplexer such as a duplexer, a diplexer, a power amplifier module, and a high frequency superposition module.
- Various electronic components or electronic modules such as isolators and sensors are included in the multilayer electronic component referred to in the present invention.
- the method for manufacturing a multilayer electronic component and the multilayer electronic component according to the present invention it is possible to efficiently manufacture a multilayer electronic component including a plurality of ceramic laminates having different stacking directions.
- FIG. 1 is a perspective view schematically showing steps of a method for manufacturing a multilayer electronic component according to an embodiment of the present invention.
- FIG. 2 is a perspective view schematically showing the steps of the manufacturing method according to the embodiment.
- FIG. 3 is a perspective view schematically showing the steps of the manufacturing method according to the embodiment.
- FIG. 4 is a perspective view schematically showing the steps of the manufacturing method according to the embodiment.
- FIG. 5 is a perspective view schematically showing the steps of the manufacturing method according to the embodiment.
- FIG. 6 is a view schematically showing a cross section (cross section AA in FIG. 5) of the first laminated stick in the embodiment.
- FIG. 7 is a perspective view schematically showing the steps of the manufacturing method according to the embodiment.
- FIG. 1 is a perspective view schematically showing steps of a method for manufacturing a multilayer electronic component according to an embodiment of the present invention.
- FIG. 2 is a perspective view schematically showing the steps of the manufacturing method according to the embodiment.
- FIG. 3 is
- FIG. 8 is a perspective view schematically showing the steps of the manufacturing method according to the embodiment.
- FIG. 9 is a perspective view schematically showing the steps of the manufacturing method according to the embodiment.
- FIG. 10 is a perspective view schematically showing the steps of the manufacturing method according to the embodiment.
- FIG. 11 is a view schematically showing a cross section (BB cross section in FIG. 0) of the second laminated stick in the embodiment.
- FIG. 12 is a perspective view schematically showing the steps of the manufacturing method according to the embodiment.
- FIG. 13 is a perspective view schematically showing the steps of the manufacturing method according to the embodiment.
- FIG. 14 is a perspective view schematically showing the steps of the manufacturing method according to the embodiment.
- FIG. 15 is a perspective view schematically showing the steps of the manufacturing method according to the embodiment.
- FIG. 16 is a view schematically showing a cross section (DD cross section of FIG. 15) of the third laminated sheet in the embodiment.
- FIG. 17 is a perspective view schematically showing the steps of the manufacturing method according to the embodiment.
- FIG. 18 is a perspective view schematically showing the steps of the manufacturing method according to the embodiment.
- FIG. 19 is a view schematically showing a cross section (a state after firing) of a chip produced by cutting the third laminated sheet in the embodiment.
- FIG. 20A is a diagram schematically illustrating a cross section (a state after firing) of a chip manufactured by cutting the third laminated sheet in the modification of the embodiment.
- FIG. 20B is a diagram schematically illustrating a cross section (a state after firing) of a chip manufactured by cutting the third laminated sheet in another modification of the embodiment.
- FIG. 20C is a view schematically showing a cross section (a state after firing) of a chip manufactured by cutting the third laminated sheet in still another modification of the embodiment.
- FIG. 21A is a diagram schematically showing a chip cross section (a state before firing) of still another modified example of the embodiment.
- FIG. 21B is a sectional view schematically showing a state after firing of the chip shown in FIG. 21A.
- FIG. 22A is a view schematically showing a chip cross section (a state before firing) of still another modified example of the embodiment.
- FIG. 22B is a cross-sectional view schematically showing a state after firing of the chip shown in FIG. 22A.
- FIG. 23A is a view schematically showing a chip cross section (a state before firing) of still another modified example of the embodiment.
- FIG. 23B is a cross-sectional view schematically showing a state after firing of the chip shown in FIG. 23A.
- FIG. 24 is a perspective view schematically showing an electronic component (filter) manufactured by applying the manufacturing method of the embodiment in a transparent state.
- FIG. 25 is a cross-sectional view schematically showing another example of the third laminated sheet produced by applying the manufacturing method of the embodiment, similarly to FIG.
- FIG. 1 and the subsequent drawings three-dimensional coordinates including an x axis, a y axis, and a z axis that are orthogonal to each other are shown as appropriate.
- the x axis The direction will be described as the horizontal direction (horizontal direction / left-right direction), the y-axis direction as the vertical direction (horizontal direction / front-back direction), and the z-axis direction as the height direction (vertical direction / vertical direction).
- each wiring layer (inner conductor 12) is stacked in the vertical direction, in other words, each wiring layer includes an xy plane (including an x axis and a y axis).
- the first laminated bodies 51 and 52 that extend horizontally in parallel to the plane) and each wiring layer (inner conductor 22) are laminated in the horizontal direction on the contrary, in other words, each wiring layer has a yz plane (y-axis).
- a multilayer electronic component 41 (hereinafter, sometimes referred to as a chip) that includes a second laminated body 53 that extends perpendicularly in parallel to the plane including the z-axis).
- the first laminates 51 and 52 include a left first laminate 51 joined to the left side of the second laminate 53 and a right first laminate 52 joined to the right side of the second laminate 53. .
- first, an unfired green sheet 11 formed of a ceramic material mainly composed of alumina is prepared.
- the first ceramic sheets 11a, 11b, 11c, 11d, 11e, and 11f are applied by applying a conductive paste on the surface and printing a predetermined conductor pattern 12 corresponding to each wiring layer of the first laminates 51 and 52. , 11g (see FIG. 2).
- the conductor patterns 12 printed on the first ceramic sheets 11a to 11g are formed so as to be arranged in a matrix in the vertical and horizontal directions corresponding to the number of chips 41 to be manufactured.
- the first ceramic sheets 11a to 11g need an interlayer connection conductor such as a via hole in addition to the conductor pattern 12 corresponding to the circuit element to be arranged in each wiring layer of the first laminate as described above.
- the second ceramic sheets 21a to 21d described later with reference to FIG. 7 are also formed.
- various ceramic materials such as ferrite (especially with an inductor), barium titanate (especially with a capacitor), and zinc oxide (especially with a varistor) can be used as the ceramic material constituting the green sheet. Materials can be included.
- the first ceramic sheets 11a to 11g are aligned in a predetermined order while being aligned as shown in FIG. 2, and these are integrated by thermocompression bonding, as shown in FIG. A sheet 13 is obtained.
- the first laminated sheet 13 is cut into strips to obtain a first laminated stick 13a.
- the first laminated stick 13a has a cross section (AA cross section in FIG. 5) as shown in FIG.
- the conductor pattern 12 is formed and laminated so that the laminated bodies 51 are arranged.
- a plurality of sets of conductor patterns 12 constituting the right first laminated body 52 and the left first laminated body 51 are arranged. It is equipped as such.
- the second laminated stick is produced.
- an unfired green sheet is prepared in the same manner as in the production of the first laminated sheet, and a predetermined paste corresponding to each wiring layer of the second laminated body 53 is applied by applying a conductive paste to the surface.
- the second ceramic sheets 21 a, 21 b, 21 c, and 21 d printed with the conductor pattern 22 are prepared in a number corresponding to each wiring layer of the second laminate 53.
- the conductor patterns 22 of the second ceramic sheets 21a to 21d are arranged in a matrix form in the vertical and horizontal directions by the number corresponding to the number of chips to be produced. Form.
- FIG. 23 shows a cross section (cross section BB in FIG. 10) of the second laminated stick 23a.
- FIG. 16 shows an enlarged cross section of the third laminated sheet 33.
- adjacent first laminated sticks 13a and second laminated sticks 23a are joined, and the conductor 12 included in the first laminated stick 13a and the conductor 22 included in the second laminated stick 23a are electrically connected. It is connected.
- the conductors 12 and 22 shown in the drawings of the present application are for illustrating the concept of the present invention, and the conductor pattern in the present invention is not limited to the illustrated example. Of course, various shapes, the number of arrangements, and connection forms of conductors may be provided.
- the third laminated sheet 33 is cut in a grid shape (division shape) in the vertical direction and the horizontal direction at the cutting line 40, and the chip 41 is formed as shown in FIG. obtain.
- the entire chip 41 becomes a single sintered body having a continuous ceramic layer (insulating functional layer).
- external electrodes terminal electrodes
- the first laminates 51 and 52 and the second laminate 53 are made of different materials, as a whole (as a whole laminate) or partially (a part of the ceramic layers of the laminate).
- the diffusion layer 45 may be formed on the joint surface between the two laminates formed of different materials.
- the diffusion layer is formed of the first laminated body 51, 52 and the second laminated body as shown in FIG. 20A depending on the material constituting the ceramic layers of the first laminated body and the second laminated body. 53, each material contained in 53 is diffused toward the other laminate (the second laminate 53 for the first laminate 51, 52 and the first laminate 51, 52 for the second laminate 53).
- the material included in the first laminates 51 and 52 may be a diffusion layer diffused toward the second laminate 53 as shown in FIG. 20B, or conversely, As shown in FIG. 20C, there may be a diffusion layer in which the material included in the second stacked body 53 is diffused toward the first stacked bodies 51 and 52.
- 20A to 20C conceptually show the case where the materials of the first laminated bodies 51 and 52 and the second laminated body 53 are made different for the entire laminated bodies, and the portions between the laminated bodies are partially shown.
- the diffusion layer 45 continuous from the upper surface of the chip to the lower surface of the chip is not formed in the height direction as shown in FIG. 20, but is partially (discontinuous in the height direction).
- a diffusion layer or an interface may be formed only at a portion where different materials are in contact with each other.
- the first laminates 51 and 52 are divided into a first ceramic layer 81 made of a first ceramic material and a second different from the first ceramic material.
- the second laminated body 53 has a structure in which the first ceramic layer 81 made of the first ceramic material is laminated, and the second ceramic layer 82 made of the ceramic material is laminated.
- an interface or a diffusion layer may be partially formed in the height direction of the chip.
- FIG. 22A when the layer of the second laminate 53 in contact with the first laminates 51 and 52 is the second ceramic layer 82, or as shown in FIG. 23A (before firing).
- the layer of the second laminate 53 in contact with the first laminates 51 and 52 is the first ceramic layer 81
- FIGS. 22B and 23B a portion in the height direction of the chip is shown as shown in FIGS. 22B and 23B, respectively.
- an interface or a diffusion layer is formed (portion where the first ceramic layer 81 and the second ceramic layer 82 are in contact). The same applies when three or more types of ceramic layers are laminated.
- FIG. 24 shows a configuration example of a filter chip manufactured based on the above embodiment.
- the conductor for example, inductor conductor 61
- the stacked conductors for example, the capacitor electrode 62
- the inductor conductor 61 of the first multilayer body 51, 52 and the capacitor electrode 62 of the second multilayer body 53 are electrically connected directly or at a short distance.
- FIG. 25 shows another configuration example of the third laminated sheet.
- the center of the first laminated stick 13a portion in the third laminated sheet 33 is cut in the longitudinal direction to produce individual chips 41.
- the 73a portion along the cutting line 40 is also possible to cut the 73a portion along the cutting line 40 to form a chip 44 composed of only two stacked bodies.
- the second laminated stick 73a similarly to the first laminated stick 13a, the second laminated stick 73a has a pair of conductor patterns 22 symmetrically (conducting conductors on the left and right portions of the second laminated stick 73a, respectively). A pattern 22) may be formed.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
- Ceramic Capacitors (AREA)
- Coils Or Transformers For Communication (AREA)
- Production Of Multi-Layered Print Wiring Board (AREA)
- Filters And Equalizers (AREA)
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Abstract
Description
特許文献2:特開2004-31743号公報
特許文献3:特開2009-170737号公報
特許文献4:特許第3425065号公報
本実施形態の製造方法では、図1に示すようにまず、アルミナを主成分とするセラミック材料により形成した未焼成のグリーンシート11を用意し、その表面に導電性ペーストを塗布して第一積層体51,52の各配線層に対応した所定の導体パターン12を印刷することにより第一セラミックシート11a,11b,11c,11d,11e,11f,11gを作製する(図2参照)。これら第一セラミックシート11a~11gに印刷する導体パターン12は、作製するチップ41の数に対応した数だけ縦方向と横方向とにマトリックス状に配列するように形成する。
同様に、第二積層スティックの作製を行う。図7に示すように、前記第一積層シート作製時と同様に未焼成のグリーンシートを用意し、その表面に導電性ペーストを塗布することにより第二積層体53の各配線層に対応した所定の導体パターン22を印刷した第二セラミックシート21a,21b,21c,21dを第二積層体53の各配線層に対応した枚数作製する。これら各第二セラミックシート21a~21dの導体パターン22は、前記第一積層シート13と同様に、作製するチップの数に対応した数だけ縦方向と横方向とにそれぞれマトリックス状に配列するように形成する。
そして、図12に示すように第二積層スティック23aの各配線層22が垂直に立つように第二積層スティック23aを長手方向(y軸)の周りに90°回転させ、この状態で図13に示すように第一積層スティック13aの間に第二積層スティック23aを挟み込むように第一積層スティック13aと第二積層スティック23aとを交互に配置し、図14に示すようにこれら第一積層スティック13aと第二積層スティック23aとを熱圧着して一体化することにより、図15に示すように第三積層シート33を作製する。
図16および図17に示すように切断線40において第三積層シート33を縦方向と横方向とに方眼状(さいの目状)に切断し、図18に示すようにチップ41を得る。
11a,11b,11c,11d,11e,11f,11g 第一セラミックシート
12,22,61,62 内部導体
13 第一積層シート
13a 第一積層スティック
21a,21b,21c,21d 第二セラミックシート
23 第二積層シート
23a,73a 第二積層スティック
33 第三積層シート
40 チップ化のための切断線
41,42,43,44 積層型電子部品(チップ)
45 拡散層
51 第一積層体(左第一積層体)
52 第一積層体(右第一積層体)
53 第二積層体
81 第一セラミック層
82 第二セラミック層
Claims (9)
- 未焼成のセラミック材料を主成分とする1層以上の絶縁性機能層と、回路素子の少なくとも一部を構成する導体を縦方向と横方向とに二次元的に複数配列した1層以上の導体層とを積層した第一積層シートを作製する工程と、
未焼成のセラミック材料を主成分とする1層以上の絶縁性機能層と、回路素子の少なくとも一部を構成する導体を縦方向と横方向とに二次元的に複数配列した1層以上の導体層とを積層した第二積層シートを作製する工程と、
前記縦方向および横方向のいずれかに配列された複数の導体が含まれるように、前記第一積層シートをスティック状に切断し、これにより複数本の第一積層スティックを得る工程と、
前記縦方向および横方向のいずれかに配列された複数の導体が含まれるように、前記第二積層シートをスティック状に切断し、これにより複数本の第二積層スティックを得る工程と、
前記第二積層スティックを、当該第二積層スティックの長手方向の軸周りに90°回転させた状態で前記第一積層スティックと前記第一積層スティックとの間に挟むように配置し、これら第一積層スティックおよび第二積層スティックを熱圧着して一体化することにより第三積層シートを作製する工程と、
前記第一積層スティックの一部である第一積層体と前記第二積層スティックの一部である第二積層体とが各々に含まれるように前記第三積層シートを縦方向と横方向とに切断することにより当該第三積層シートをチップ化する工程と、
当該チップ化した未焼成のチップを焼成することにより前記第一積層体と前記第二積層体とが一体化した焼結体を得る工程と
を含むことを特徴とする積層型電子部品の製造方法。 - 前記第一積層シートを作製する工程は、
未焼成のセラミック材料を主成分とするセラミックグリーンシートの表面に、回路素子の少なくとも一部を構成する導体を縦方向と横方向とに二次元的に配列されるように複数印刷した第一セラミックシートを複数枚作製する工程と、
前記複数枚の第一セラミックシートを重ね合わせて熱圧着し一体化することにより前記第一積層シートを得る工程と
を含み、
前記第二積層シートを作製する工程は、
未焼成のセラミック材料を主成分とするセラミックグリーンシートの表面に、回路素子の少なくとも一部を構成する導体を縦方向と横方向とに二次元的に配列されるように複数印刷した第二セラミックシートを複数枚作製する工程と、
前記複数枚の第二セラミックシートを重ね合わせて熱圧着し一体化することにより前記第二積層シートを得る工程と
を含む
請求項1に記載の積層型電子部品の製造方法。 - セラミック材料を主成分とする1層以上の絶縁性機能層と、1層以上の導体層とが積層された第一積層体と、
セラミック材料を主成分とする1層以上の絶縁性機能層と、1層以上の導体層とが積層され、かつ、前記第一積層体と接合された第二積層体と、
を備えた電子部品であって、
前記第一積層体の積層方向と前記第二積層体の積層方向とが、互いに交差し、
前記第一積層体と前記第二積層体とが、焼成により一体化した焼結体となっている
ことを特徴とする積層型電子部品。 - 前記第一積層体の導体層の積層方向と、前記第二積層体の積層方向とが、互いに略直交している
請求項3に記載の積層型電子部品。 - 前記第一積層体の絶縁性機能層と、前記第二積層体の絶縁性機能層とが、同一材料からなり、
当該前記第一積層体の絶縁性機能層と第二積層体の絶縁性機能層の接合面は連続した焼結体となっている
請求項3または4に記載の積層型電子部品。 - 前記第一積層体の絶縁性機能層と、前記第二積層体の絶縁性機能層とが、異なる材料からなり、
当該前記第一積層体の絶縁性機能層と第二積層体の絶縁性機能層の接合面に界面が存在する
請求項3または4に記載の積層型電子部品。 - 前記第一積層体の絶縁性機能層と前記第二積層体の絶縁性機能層との接合面に、前記第一積層体の絶縁性機能層を構成する材料および前記第二積層体の絶縁性機能層を構成する材料のうちのいずれか一方または双方の材料が拡散した拡散層が形成されている
請求項3または4に記載の積層型電子部品。 - 前記第一積層体と前記第二積層体との間に接着材料が介在されていない
ことを特徴とする請求項3から7のいずれか一項に記載の積層型電子部品。 - 前記第一積層体と前記第二積層体とが接合されることにより当該接合面において、前記第一積層体に含まれる導体のうちの1以上の導体の端部が前記第二積層体に含まれる導体のうちの1以上の導体の表面に当接し、これにより当該第一積層体に含まれる導体と第二積層体に含まれる導体とが電気的に接続されている
請求項3から8のいずれか一項に記載の積層型電子部品。
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US13/811,167 US8864925B2 (en) | 2010-07-22 | 2011-07-21 | Method for producing laminated electronic component, and laminated electronic component |
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US9327923B1 (en) * | 2014-11-17 | 2016-05-03 | Quintin S. Marx | Portable heated ramp and method |
JP6578719B2 (ja) | 2015-04-14 | 2019-09-25 | Tdk株式会社 | コイルとコンデンサを含む積層複合電子部品 |
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