WO2022168802A1 - 電子部品、電子部品の製造方法、フィルタモジュール及び電子機器 - Google Patents
電子部品、電子部品の製造方法、フィルタモジュール及び電子機器 Download PDFInfo
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- WO2022168802A1 WO2022168802A1 PCT/JP2022/003666 JP2022003666W WO2022168802A1 WO 2022168802 A1 WO2022168802 A1 WO 2022168802A1 JP 2022003666 W JP2022003666 W JP 2022003666W WO 2022168802 A1 WO2022168802 A1 WO 2022168802A1
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- 238000004519 manufacturing process Methods 0.000 title claims description 11
- 239000004020 conductor Substances 0.000 claims abstract description 309
- 239000012212 insulator Substances 0.000 claims abstract description 160
- 239000003990 capacitor Substances 0.000 claims abstract description 37
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
- H01G4/40—Structural combinations of fixed capacitors with other electric elements, the structure mainly consisting of a capacitor, e.g. RC combinations
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/0006—Printed inductances
- H01F17/0013—Printed inductances with stacked layers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
- H01G4/002—Details
- H01G4/005—Electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
- H01G4/33—Thin- or thick-film capacitors
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/01—Frequency selective two-port networks
- H03H7/0115—Frequency selective two-port networks comprising only inductors and capacitors
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/01—Frequency selective two-port networks
- H03H7/09—Filters comprising mutual inductance
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/01—Frequency selective two-port networks
- H03H7/17—Structural details of sub-circuits of frequency selective networks
- H03H7/1708—Comprising bridging elements, i.e. elements in a series path without own reference to ground and spanning branching nodes of another series path
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/0006—Printed inductances
- H01F17/0013—Printed inductances with stacked layers
- H01F2017/0026—Multilayer LC-filter
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/0006—Printed inductances
- H01F2017/0073—Printed inductances with a special conductive pattern, e.g. flat spiral
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H1/00—Constructional details of impedance networks whose electrical mode of operation is not specified or applicable to more than one type of network
- H03H2001/0021—Constructional details
- H03H2001/0085—Multilayer, e.g. LTCC, HTCC, green sheets
Definitions
- the present invention relates to an electronic component including an inductor and a capacitor, a method for manufacturing this electronic component, a filter module including the electronic component, and an electronic device including the same.
- a conductor layer for forming an inductor and a conductor layer for forming a capacitor are formed in the same layer.
- conductor layers for forming inductors formed in different layers are connected in parallel.
- An electronic component as an example of the present disclosure includes a first insulator layer formed with a first conductor pattern for forming an inductor and a first electrode pattern for forming a capacitor, and a second conductor pattern for forming the inductor. and a second insulator layer on which a second electrode pattern for forming the capacitor is formed.
- a capacitor is formed by the first electrode pattern and the second electrode pattern facing each other with the second insulator layer interposed therebetween, and the second conductor pattern is electrically connected along the first conductor pattern. characterized by
- the occupation ratio of the inductor-forming conductors per unit volume is high. Therefore, an inductor with a high Q value can be obtained.
- the first electrode pattern and the second electrode pattern for capacitor formation face each other with a single insulating layer interposed therebetween, the occupancy rate of the capacitor formation electrode obtained per unit volume is not lowered.
- a method for manufacturing an electronic component as an example of the present invention includes the step of simultaneously forming a first conductor pattern for forming an inductor and a first electrode pattern for forming a capacitor on a first insulator layer; forming a second insulator layer on the surface of the insulator layer on which the first conductor pattern is formed, the second insulator layer having an opening above the first conductor pattern; forming the second conductor pattern for forming the inductor, and forming the second electrode pattern for forming the capacitor at a position facing the first electrode pattern through the second insulator layer. characterized by
- the second electrode pattern and the second conductor pattern can be simultaneously formed on the second insulator layer and in the opening, so that the electronic component can be manufactured with a small number of steps.
- a filter module as an example of the present disclosure includes the electronic component described in (A) and an inductor or a capacitor connected to the inductor or the capacitor of the electronic component.
- An electronic device as an example of the present disclosure includes the electronic component described in (A) or the filter module described in (C).
- an electronic component that is small and has an inductor with a high Q value as well as a capacitor, a method for manufacturing this electronic component, a filter module that includes this electronic component, and an electronic device that includes it.
- FIG. 1 is an exploded plan view of an electronic component 11 according to the first embodiment.
- 2(A) is a plan view of the electronic component 11
- FIG. 2(B) is a cross-sectional view of the XX portion in FIG. 2(A)
- FIG. 3 is a circuit diagram of the electronic component 11.
- FIG. 4 is a circuit diagram of the filter module according to the first embodiment.
- 5(A), 5(B), and 5(C) are cross-sectional views at each stage in the step of forming the first conductor pattern and the first electrode pattern.
- 6A, 6B, and 6C are cross-sectional views at each stage in the process of forming the second insulator layer S2.
- FIG. 7(A), 7(B), 7(C), and 7(D) show a first conductor pattern, a second conductor pattern, a first electrode pattern, a second electrode pattern, and a third insulator layer.
- 3A and 3B are cross-sectional views at each stage in the formation process of FIG. 8A, 8B, and 8C are cross-sectional views of the electronic component when the line widths of the first conductor pattern LC11 and the second conductor pattern CL12 are made equal.
- 9A and 9B are cross-sectional views showing examples of the positional relationship between the first conductor pattern CL11 and the second conductor pattern CL12.
- FIG. 10 is an exploded plan view of an electronic component 12A according to the second embodiment.
- FIG. 10 is an exploded plan view of an electronic component 12A according to the second embodiment.
- FIG. 11(A) is a plan view of the electronic component 12A
- FIG. 11(B) is a sectional view taken along the line XX in FIG. 11(A).
- FIG. 12 is an exploded plan view of another electronic component 12B according to the second embodiment.
- FIG. 13(A) is a plan view of the electronic component 12B
- FIG. 13(B) is a sectional view taken along the line XX in FIG. 13(A).
- FIG. 14 is a perspective view of the filter module 13 according to the third embodiment.
- FIG. 15 is an exploded plan view showing each insulating layer of the filter module 13 and conductor patterns formed thereon.
- FIG. 16 is a circuit diagram of the filter module 13. As shown in FIG. FIG. FIG.
- FIG. 17 is an exploded plan view showing each insulator layer and conductor patterns formed thereon of another filter module according to the third embodiment.
- FIG. 18 is an exploded plan view showing each insulator layer and conductor patterns formed thereon of another filter module according to the third embodiment.
- 19(A), 19(B), 19(C), 19(D), and 19(E) schematically show a joint structure of a plurality of conductor patterns and via conductors V for forming an inductor.
- FIG. 4 is a diagram showing;
- FIG. 20 is a block diagram showing the configuration of an electronic device 201 according to the fifth embodiment.
- FIG. 1 is an exploded plan view of an electronic component 11 according to the first embodiment.
- 2(A) is a plan view of the electronic component 11
- FIG. 2(B) is a cross-sectional view of the XX portion in FIG. 2(A)
- the electronic component 11 includes a first insulator layer S1, a second insulator layer S2 and a third insulator layer S3.
- a terminal electrode is formed on the lower surface of the first insulator layer S1.
- a first conductor pattern CL11 for forming an inductor and a first electrode pattern EC11 for forming a capacitor are formed on the upper surface of the first insulator layer S1.
- a second conductor pattern CL12 for forming an inductor and a second electrode pattern EC12 for forming a capacitor are formed on the upper surface of the second insulator layer S2.
- the second conductor pattern CL12 is also formed inside the second insulator layer S2.
- the second conductor pattern CL12 has a portion formed on the upper surface of the second insulator layer S2 and a portion formed inside the second insulator layer S2.
- a third insulator layer S3 covering the second insulator layer S2, the second conductor pattern CL12 and the second electrode pattern EC12 is formed on the upper surface of the second insulator layer S2.
- the first electrode pattern EC11 and the second electrode pattern EC12 face each other with the second insulator layer S2 interposed therebetween. With this structure, a capacitor is formed by the first electrode pattern EC11, the second electrode pattern EC12, and the second insulator layer S2.
- the second conductor pattern CL12 formed on the second insulator layer S2 has a shape that continues along the first conductor pattern CL11.
- the second conductor pattern CL12 is conductively connected to the first conductor pattern CL11 in the thickness direction of the second insulator layer S2 over the entire length of the extending shape (FIGS. 2B and 2C). 2(C)).
- the portion of the second conductor pattern CL12 formed inside the second insulator layer S2 is connected to the first conductor pattern CL11 over the entire length of the shape extending in plan view of the second conductor pattern CL12. do.
- an inductor is configured by the first conductor pattern CL11 and the second conductor pattern CL12.
- the first conductor pattern CL11 and the second conductor pattern CL12 are formed so as to be conductively connected in the thickness direction of the second insulator layer S2, thereby increasing the thickness of the electrodes that constitute the inductor. can.
- the surface area of the electrodes is increased, and an increase in high-frequency resistance due to the skin effect or the like when a high-frequency signal propagates through the electrodes constituting the inductor can be reduced, and the Q value of the inductor can be increased.
- the first conductor pattern CL11 and the second conductor pattern CL12 are conductively connected over substantially the entire length of the shape extending in plan view of each pattern, but at least a part thereof is conductively connected. It is good if it is.
- FIG. 3 is a circuit diagram of the electronic component 11.
- FIG. The electronic component 11 includes the inductor L1 and the capacitor C1.
- FIG. 4 is a circuit diagram of the filter module according to the first embodiment.
- This filter module has terminals T1 and T2 forming an input/output port with the ground.
- the filter circuit section is composed of inductors L1 and L2 and capacitors C1, C2 and C3.
- a filter module can be configured by including the electronic component shown in FIGS. 1 to 3 and the inductor L2 or capacitors C2 and C3 connected to the inductor L1 or capacitor C1 of the electronic component.
- Inductor L2 and capacitors C2 and C3 can be similarly formed in the insulator layers in which inductor L1 and capacitor C1 are formed.
- 5(A), 5(B), and 5(C) are cross-sectional views at each stage in the step of forming the first conductor pattern and the first electrode pattern.
- a photosensitive conductive paste film PP is formed by screen-printing a photosensitive conductive paste on the upper surface of the first insulator layer S1 and drying it.
- the photosensitive conductive paste film PP is irradiated with UV light through the photomask PM.
- the photosensitive conductive paste film PP is developed and sintered to form the first conductor pattern CL11 and the first electrode pattern EC11 as shown in FIG. 5(C).
- 6(A), 6(B), and 6(C) are cross-sectional views at each stage in the process of forming the second insulator layer S2.
- a photosensitive insulating paste film S2P is formed by screen-printing a photosensitive insulating paste on the upper surface of the first insulator layer S1 and drying it.
- the film S2P of the photosensitive insulating paste is irradiated with UV light through the photomask PM.
- the photosensitive insulating paste film S2P is developed and sintered to form a second insulating layer S2 having an opening AP, as shown in FIG. 6(C).
- 7(A), 7(B), 7(C), and 7(D) show a first conductor pattern, a second conductor pattern, a first electrode pattern, a second electrode pattern, and a third insulator layer.
- 3A and 3B are cross-sectional views at each stage in the formation process of FIG.
- a photosensitive conductive paste film PP is formed by screen-printing a photosensitive conductive paste on the upper surface of the second insulator layer S2 and drying it.
- the film PP of the photosensitive conductive paste is irradiated with UV light through the photomask PM.
- the photosensitive conductive paste film PP is developed and sintered to form a second conductor pattern CL12 and a second electrode pattern EC12, as shown in FIG. 7(C).
- a third insulator layer S3 is formed on the upper surface of the second insulator layer S2.
- the second electrode pattern EC12 and the second conductor pattern CL12 can be simultaneously formed on the second insulator layer S2 and in the opening AP. can do.
- the electronic component of the present invention is not limited to this manufacturing method.
- it may be manufactured by a method of laminating insulating sheets using a process of forming an electrode pattern by screen printing or a process of making holes in an insulating layer with a laser and filling via electrodes.
- FIGS. 8B and 8C are cross-sectional views of the electronic component when the line widths of the first conductor pattern LC11 and the second conductor pattern CL12 are made equal. These cross-sectional positions are the same as the cross-sectional positions shown in FIG. As shown in FIG. 8A, it is preferable that the first conductor pattern CL11 and the second conductor pattern CL12 have the same line width and overlap each other in plan view. However, as shown in FIGS. 8B and 8C, the second conductor pattern CL12 protrudes outside the line width of the first conductor pattern CL11 depending on the formation accuracy of the conductor patterns of each layer. As described above, if the conductor pattern has irregularities at the inner and outer edges of the loop, the current density becomes non-uniform, and the conductor loss increases at locations where the current density is high.
- the first conductor pattern CL11 and the second conductor pattern CL12 have a loop shape or a shape forming a part of the loop.
- the conductor pattern formed in the second insulator layer S2 among the second conductor patterns CL12 is the second conductor pattern CL12. It is positioned inside the line width (both ends in the width direction) of the conductor pattern formed on the upper surface of the insulator layer S2 and the line width (both ends in the width direction) of the first conductor pattern CL11.
- the line width of the conductor pattern formed in the second insulator layer S2 among the second conductor patterns CL12 is the same as that formed on the upper surface of the second insulator layer S2 among the second conductor patterns CL12. It is determined to be narrower than the line width of the existing conductor pattern and the line width of the first conductor pattern CL11. This can prevent the conductor pattern formed in the second insulator layer S2 from protruding in the opening direction of the loop among the second conductor patterns CL12.
- 9(A) and 9(B) are cross-sectional views showing examples of the positional relationship between the first conductor pattern CL11 and the second conductor pattern CL12. These cross-sectional positions are the same as the cross-sectional positions shown in FIG.
- the line width of the conductor pattern formed in the second insulator layer S2 is equal to that of the second conductor
- the line width of the pattern CL12 is narrower than the line width of the conductor pattern formed on the upper surface of the second insulator layer S2 and the line width of the first conductor pattern CL11.
- the inner edges of the loops of the first conductor pattern CL11 and the second conductor pattern CL12 in a plan view viewed from the stacking direction of the first conductor pattern CL11 and the second conductor pattern CL12 are at the same location. be.
- the inner peripheries of the first conductor pattern CL11 and the second conductor pattern CL12 are aligned.
- the outer edges of the loops in plan view are at the same location in the first conductor pattern CL11 and the second conductor pattern CL12. That is, the outer peripheries of the first conductor pattern CL11 and the second conductor pattern CL12 are aligned.
- the current density is higher in the inner peripheral portions of the first conductor pattern CL11 and the second conductor pattern CL12 that constitute the inductor due to the proximity effect. Therefore, as shown in FIG. 9A, it is preferable that the conductor patterns CL11 and CL12 protrude less in the opening direction of the loop.
- FIG. 10 is an exploded plan view of an electronic component 12A according to the second embodiment.
- FIG. 11(A) is a plan view of the electronic component 12A
- FIG. 11(B) is a sectional view taken along the line XX in FIG. 11(A).
- the electronic component 12A includes insulator layers Sa, Sb, Sc, and Sd.
- a terminal electrode is formed on the lower surface of the insulator layer Sa.
- a conductor pattern CL1a and an electrode pattern EC1a are formed on the upper surface of the insulator layer Sa.
- a conductor pattern CL1b and an electrode pattern EC1b are formed on the upper surface of the insulator layer Sb.
- a conductor pattern CL1b is also formed inside the insulator layer Sb. That is, the conductor pattern CL1b has a portion formed on the upper surface of the insulator layer Sb and a portion formed inside the insulator layer Sb.
- a conductor pattern CL1c and an electrode pattern EC1c are formed on the upper surface of the insulator layer Sc.
- a conductor pattern CL1c is also formed inside the insulator layer Sc. That is, the conductor pattern CL1c has a portion formed on the upper surface of the insulator layer Sc and a portion formed inside the insulator layer Sc.
- An insulator layer Sd covering the insulator layer Sc, the conductor pattern CL1c, and the electrode pattern EC1c is formed on the upper surface of the insulator layer Sc.
- the electronic component 12A includes insulator layers Sa, Sb, Sc, and Sd.
- a terminal electrode is formed on the lower surface of the insulator layer Sa.
- a conductor pattern CL1a and an electrode pattern EC1a are formed on the upper surface of the insulator layer Sa.
- a conductor pattern CL1b and an electrode pattern EC1b are formed on the upper surface of the insulator layer Sb.
- a conductor pattern CL1c is formed inside the insulator layer Sb.
- a conductor pattern CL1c and an electrode pattern EC1c are formed on the upper surface of the insulator layer Sc.
- a conductor pattern CL1c is formed inside the insulator layer Sc.
- An insulator layer Sd covering the insulator layer Sc, the conductor pattern CL1c, and the electrode pattern EC1c is formed on the upper surface of the insulator layer Sc.
- the conductor pattern CL1a is the first conductor pattern
- the conductor pattern CL1b is the second conductor pattern
- the insulator layer Sa is the first insulator layer
- the insulator layer Sb is the second insulator layer
- the insulator layer Sb is the second insulator layer.
- the body layers Sc respectively correspond to the third insulator layers.
- the conductor pattern CL1b and CL1c the conductor pattern CL1b is the first conductor pattern
- the conductor pattern CL1c is the second conductor pattern
- the insulator layer Sb is the first insulator layer
- the insulator layer Sc is the second insulator layer.
- the insulator layer Sd correspond to the third insulator layer.
- the electrode pattern EC1a corresponds to the first electrode pattern
- the electrode pattern EC1b corresponds to the second electrode pattern
- the electrode pattern EC1b corresponds to the first electrode pattern
- the electrode pattern EC1c corresponds to the second electrode pattern.
- the conductor pattern CL1b continues along the conductor pattern CL1a, and the conductor pattern CL1c continues along the conductor pattern CL1b.
- a portion of the conductor pattern CL1b formed inside the insulator layer Sb is connected to the conductor pattern CL1a over the entire length of the shape extending in plan view of the conductor pattern CL1b.
- the portion of the conductor pattern CL1c formed inside the insulator layer Sc is connected to the conductor pattern CL1b over the entire length of the shape extending in plan view of the conductor pattern CL1c.
- An inductor is configured by the conductor patterns CL1a, CL1b, and CL1c.
- a capacitor is formed by the electrode patterns EC1a, EC1b, EC1c and the insulating layers Sb, Sc.
- FIG. 12 is an exploded plan view of another electronic component 12B according to the second embodiment.
- FIG. 13(A) is a plan view of the electronic component 12B
- FIG. 13(B) is a sectional view taken along the line XX in FIG. 13(A).
- the electronic component 12B includes insulator layers Sa, Sb, Sc, Sd, and Se.
- a terminal electrode is formed on the lower surface of the insulator layer Sa.
- a conductor pattern CL1a and an electrode pattern EC1a are formed on the upper surface of the insulator layer Sa.
- An electrode pattern EC1b is formed on the upper surface of the insulator layer Sb.
- a conductor pattern CL1b is formed on the upper surface of the insulator layer Sb and inside the insulator layer Sb.
- a conductor pattern CL1c and an electrode pattern EC1c are formed on the upper surface of the insulator layer Sc. Via conductors V are formed in the insulator layer Sc to connect the ends of the conductor pattern CL1b and the conductor pattern CL1c.
- An electrode pattern EC1d is formed on the upper surface of the insulator layer Sd.
- a conductor pattern CL1d is formed on the upper surface of the insulator layer Sd and inside the insulator layer Sd.
- An insulator layer Se covering the insulator layer Sd, the conductor pattern CL1d, and the electrode pattern EC1d is formed on the upper surface of the insulator layer Sd.
- the conductor pattern CL1a is the first conductor pattern
- the conductor pattern CL1b is the second conductor pattern
- the insulator layer Sa is the first insulator layer
- the insulator layer Sb is the second insulator layer
- the insulator layer Sb is the second insulator layer.
- the body layers Sc respectively correspond to the third insulator layers.
- the conductor pattern CL1c and CL1d the conductor pattern CL1c is the first conductor pattern
- the conductor pattern CL1d is the second conductor pattern
- the insulator layer Sc is the first insulator layer
- the insulator layer Sd is the second insulator layer.
- the insulator layer Se corresponds to the third insulator layer.
- the electrode pattern EC1a corresponds to the first electrode pattern
- the electrode pattern EC1b corresponds to the second electrode pattern
- the electrode pattern EC1c and EC1d corresponds to the first electrode pattern
- the electrode pattern EC1d corresponds to the second electrode pattern.
- the conductor pattern CL1b continues along the conductor pattern CL1a, and the conductor pattern CL1d continues along the conductor pattern CL1c.
- a portion of the conductor pattern CL1b formed inside the insulator layer Sb is connected to the conductor pattern CL1a over the entire length of the shape extending in plan view of the conductor pattern CL1b.
- a portion of the conductor pattern CL1d formed inside the insulator layer Sd is connected to the conductor pattern CL1c over the entire length of the shape extending in plan view of the conductor pattern CL1d.
- An inductor is configured by the conductor patterns CL1a, CL1b, CL1c, and CL1d.
- a capacitor is formed by the electrode patterns EC1a, EC1b, EC1c, EC1d and the insulating layers Sb, Sc, Sd.
- the third embodiment illustrates a filter module.
- FIG. 14 is a perspective view of the filter module 13 according to the third embodiment.
- FIG. 15 is an exploded plan view showing each insulating layer of the filter module 13 and conductor patterns formed thereon.
- FIG. 16 is a circuit diagram of the filter module 13. As shown in FIG.
- the filter module 13 is composed of capacitors C1, C2 and inductors L2, Lg.
- the value of each element is as follows.
- the filter module 13 includes a rectangular parallelepiped laminate 1 formed by laminating a plurality of rectangular insulator layers S1 to S17.
- a first terminal electrode ET1, a second terminal electrode ET2, a ground terminal electrode (a terminal hidden behind in FIG. 14), and a float for interlayer connection of the internal electrodes are formed on the outer surface of the laminate 1 by plating, for example.
- a terminal electrode ENC is formed.
- the inductor L2 is composed of a conductor pattern CL2 formed in the laminate 1 of a plurality of insulator layers
- the inductor Lg is composed of a conductor pattern CLg formed in the laminate 1 of a plurality of insulator layers.
- the capacitor C1 is composed of electrode patterns EC1 facing each other in the stacking direction of a plurality of insulator layers and insulator layers sandwiched between the electrode patterns EC1.
- the capacitor C2 is composed of electrode patterns EC2 facing each other in the stacking direction of a plurality of insulating layers and insulating layers sandwiched between these electrode patterns.
- the conductor pattern CL2 is composed of conductor patterns CL2a, CL2b, CL2c, and CL2d shown in FIG.
- the conductor pattern CLg is composed of conductor patterns CLga, CLgb, CLgc, and CLgd shown in FIG.
- the electrode pattern EC1 is composed of electrode patterns EC1a, EC1b, EC1c, EC1d, and EC1e shown in FIG.
- the electrode pattern EC2 is composed of electrode patterns EC2a, EC2b, EC2c, EC2d, EC2e and EC2f shown in FIG. Electrodes of terminals T1, T2, GND, and NC are formed on the lower surface of the first insulator layer S1.
- the electrodes of the terminals T1, T2, GND, and NC may be formed in advance on the insulator layer S1, or may be formed after laminating a plurality of insulator layers.
- the insulator layers S1 to S17 are stacked in order is shown, but in the reverse order, starting from the insulator layer S17 in which the terminals T1, T2, GND, and NC are not formed, the insulating layers are stacked. Up to the body layer S1 may be laminated in order.
- the conductor pattern CL2b for forming the inductor has a shape that is continuous along the conductor pattern CL2a.
- a portion of the conductor pattern CL2b formed inside the insulator layer S5 is connected to the conductor pattern CL2a over the entire length of the shape extending in plan view of the conductor pattern CL2b.
- the conductor pattern CL2d has a shape that continues along the conductor pattern CL2c.
- the portion of the conductor pattern CL2d formed inside the insulator layer S7 is connected to the conductor pattern CL2c over the entire length of the shape extending in plan view of the conductor pattern CL2d.
- the conductor pattern CLgd has a shape that is continuous along the conductor pattern CLgc.
- a portion of the conductor pattern CLgd formed inside the insulator layer S17 is connected to the conductor pattern CLgc over the entire length of the shape extending in plan view of the conductor pattern CLgd.
- the conductor pattern CLgb has a shape that is continuous along the conductor pattern CLga.
- a portion of the conductor pattern CLgb formed inside the insulator layer S14 is connected to the conductor pattern CLga over the entire length of the shape extending in plan view of the conductor pattern CLgb.
- One ends of the conductor patterns CL2a and CL2b and one ends of the conductor patterns CL2c and CL2d are connected via via conductors V.
- One ends of the conductor patterns CLga and CLgb and one ends of the conductor patterns CLgc and CLgd are connected via via conductors V.
- 17 and 18 are exploded plan views showing each insulator layer and conductor patterns formed thereon of another filter module according to the third embodiment.
- the filter module shown in FIG. The shape of the electrode pattern EC1d formed on the layer S13 is different.
- the conductor pattern CL2a and the conductor pattern CL2b are gradually lengthened in that order.
- This structure smoothes the change in the conductor film thickness in the stacking direction of the conductor patterns CL2a and CL2b, thereby alleviating the concentration of the current flowing through the inductor L2.
- the end of the conductor pattern CLgd formed on the insulator layer S17 is connected to the corner conductor that conducts to the terminal GND.
- the conductor film thickness of the entire conductor patterns CLgc and CLgd is made uniform up to the ends, and the concentration of the current flowing through the inductor Lg is alleviated.
- the end of the electrode pattern EC1d is connected to the conductor at the corner that conducts to the terminal NC, similarly to the electrode pattern EC1c.
- the conductor pattern CL2c and the conductor pattern CL2d are gradually lengthened in that order. Furthermore, a via conductor V connecting the conductor pattern CL2b and the conductor pattern CL2c extends so as to connect the conductor pattern CL2b and the conductor pattern CL2c along the layer.
- This structure smoothes the change in conductor film thickness in the stacking direction of the conductor patterns CL2b, CL2c, and CL2d, thereby further reducing the concentration of the current flowing through the inductor L2.
- the conductor pattern CLga and the conductor pattern CLgb are gradually lengthened in that order.
- the conductor pattern CLgc and the conductor pattern CLgd are gradually shortened in that order.
- a via conductor V connecting the conductor pattern CLgb and the conductor pattern CLgc extends so as to connect the conductor pattern CLgb and the conductor pattern CLgc along the layer.
- FIG. 19(A) is a diagram schematically showing the joint structure of the conductor patterns CLga, CLgb, CLgc, and CLgd for forming inductors and the via conductors V, viewed from the direction perpendicular to the stacking direction. Illustration of the insulator layer is omitted. These conductor patterns and via conductors correspond to the joint structure of conductor patterns CLga, CLgb, conductor patterns CLgc, CLgd and via conductors V in FIG.
- the inductance of the inductor can be easily fine-tuned by the length of the non-connected portion.
- FIG. 19(B) is a cross-sectional view of conductor patterns CLga, CLgb, CLgc, CLgd and via conductors V for forming inductors. Illustration of the insulator layer is omitted. These conductor patterns and via conductors correspond to the joint structure of conductor patterns CLga, CLgb, conductor patterns CLgc, CLgd and via conductors V in FIG.
- the conduction of the conductor pattern CLgb to substantially the entire conductor pattern CLga and the conduction of the conductor pattern CLgd to substantially the entire conductor pattern CLgc result in the equivalent series resistance of the inductor. can be reduced, and an inductor with a high Q value can be obtained.
- FIG. 19(C) is a cross-sectional view of conductor patterns CL2a, CL2b, CL2c, CL2d and via conductors V for forming inductors. Illustration of the insulator layer is omitted. These conductor patterns and via conductors correspond to the joint structure of conductor patterns CL2a, CL2b, conductor patterns CL2c, CL2d and via conductors V in FIG.
- the change in the number of layers in the stacking direction of the conductor patterns becomes gentle, local current concentration is alleviated, and the Q value of the inductor can be effectively improved.
- FIG. 19(D) is a cross-sectional view of conductor patterns CLga, CLgb, CLgc, CLgd and via conductors V for forming inductors. Illustration of the insulator layer is omitted. These conductor patterns and via conductors correspond to the joint structure of conductor patterns CLga, CLgb, conductor patterns CLgc, CLgd and via conductors V in FIG.
- the inductance of the inductor Lg can be easily finely adjusted. .
- FIG. 19(E) is a cross-sectional view of conductor patterns CL2a, CL2b, CL2c, CL2d and via conductors V for forming inductors. Illustration of the insulator layer is omitted. Compared to FIG. 19C, the connection lengths of the conductor patterns CL2b, CL2c and the via conductors V are shorter, and the conductor patterns are configured so as not to overlap three or more layers.
- the fifth embodiment exemplifies an electronic device including the filter module described above.
- FIG. 20 is a block diagram showing the configuration of an electronic device 201 according to the fifth embodiment.
- This electronic device 201 is, for example, a so-called smart phone or mobile phone.
- This electronic device 201 comprises a duplexer 53 , an antenna 54 , a control circuit 50 , an interface and memory 51 and a frequency synthesizer 52 .
- the transmission system is composed of a transmitter 61 , a transmission signal processing circuit 62 , a transmission mixer 63 , a transmission filter 64 and a power amplifier 65 .
- the receiving system comprises a low noise amplifier 71, a receiving filter 72, a receiving mixer 73, a received signal processing circuit 74 and a receiver 75.
- a transmission signal output from the power amplifier 65 is output to the antenna 54 via the duplexer 53 . Also, the signal received by the antenna 54 is amplified by the low noise amplifier 71 via the duplexer 53 . In the case of data communication instead of telephone communication, the control circuit 50 processes the received signal.
- the filter module of the present invention can be applied to the transmission filter 64 and the reception filter 72. Also, the filter module of the present invention can be applied to the high-frequency side filter of the duplexer 53 .
- the filter module of the present invention can be applied to those filters.
- FIG. 1 shows an example in which the second conductor pattern CL12 is formed in the insulator layer S2 and continuously conductive along the first conductor pattern CL11 through the insulator layer S2.
- the two-conductor pattern CL12 may be discontinuously formed at a plurality of locations along the first conductor pattern CL11.
- AP openings C1, C2, C3... capacitors CL11... first conductor patterns CL12... second conductor patterns CL1a, CL1b, CL1c, CL1d... conductor patterns CL2, CL2a, CL2b, CL2c, CL2d...
- Electrode pattern ENC Floating terminal electrode ET1 First terminal electrode ET2 Second terminal electrodes L1, L2, Lg Inductor LC11 First conductor pattern PM Photomask PP Film of photosensitive conductive paste S1 First insulator layers S14 and S15 , S16, S17... Insulator layer S2... Second insulator layer S2P...
- Photosensitive insulating paste film S3... Third insulator layers S4, S5, S6, S7... Insulator layers Sa, Sb, Sc, Sd, Se Insulator layers T1, T2, GND, NC Terminal V Via conductor 1 Laminate 11 Electronic components 12A, 12B Electronic components 13 Filter module 50 Control circuit 51 Memory 52 Frequency synthesizer 53 Duplexer 54 Antenna 61 Transmitter 62 Transmission signal processing circuit 63 Transmission mixer 64 Transmission filter 65 Power amplifier 71 Low noise amplifier 72 Reception filter 73 Reception mixer 74 Reception signal processing circuit 75 Receiver 201 Electronic equipment
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Abstract
Description
図1は第1の実施形態に係る電子部品11の分解平面図である。図2(A)は電子部品11の平面図であり、図2(B)は図2(A)におけるX-X部分の断面図あり、図2(C)は図2(A)におけるY-Y部分の断面図ある。
第2の実施形態では、複数の第1導体パターン、複数の第2導体パターン及び3つ以上の第1電極パターン又は第2電極パターンを備える電子部品について例示する。
第3の実施形態では、フィルタモジュールについて例示する。
C2:0.75pF
Lg:0.9nH
L2:1.2nH
インダクタLg-L2間の結合係数:0.32
図14、図15に示すように、フィルタモジュール13は、それぞれ矩形の複数の絶縁体層S1~S17が積層されて構成される直方体形状の積層体1を備える。この積層体1の外面に、例えばめっきで構成された第1端子電極ET1、第2端子電極ET2、グランド端子電極(図14では後方に隠れている端子)、内部電極の層間接続のための浮き端子電極ENCが形成されている。
第4の実施形態では、複数の導体パターンの積層方向での接合構造について例示する。
第5の実施形態では、以上に示したフィルタモジュールを備える電子機器について例示する。
C1,C2,C3…キャパシタ
CL11…第1導体パターン
CL12…第2導体パターン
CL1a,CL1b,CL1c,CL1d…導体パターン
CL2,CL2a,CL2b,CL2c,CL2d…導体パターン
CLg,CLga,CLgb,CLgc,CLgd…導体パターン
EC11…第1電極パターン
EC12…第2電極パターン
EC1,EC1a,EC1b,EC1c,EC1d,EC1e…電極パターン
EC2,EC2a,EC2b,EC2c,EC2d,EC2e,EC2f…電極パターン
ENC…浮き端子電極
ET1…第1端子電極
ET2…第2端子電極
L1,L2,Lg…インダクタ
LC11…第1導体パターン
PM…フォトマスク
PP…感光性導電ペーストの膜
S1…第1絶縁体層
S14,S15,S16,S17…絶縁体層
S2…第2絶縁体層
S2P…感光性絶縁ペーストの膜
S3…第3絶縁体層
S4,S5,S6,S7…絶縁体層
Sa,Sb,Sc,Sd,Se…絶縁体層
T1,T2,GND,NC…端子
V…ビア導体
1…積層体
11…電子部品
12A,12B…電子部品
13…フィルタモジュール
50…制御回路
51…メモリ
52…周波数シンセサイザ
53…デュプレクサ
54…アンテナ
61…送話器
62…送信信号処理回路
63…送信ミキサ
64…送信フィルタ
65…パワーアンプ
71…ローノイズアンプ
72…受信フィルタ
73…受信ミキサ
74…受信信号処理回路
75…受話器
201…電子機器
Claims (7)
- インダクタ形成用の第1導体パターン及びキャパシタ形成用の第1電極パターンが形成された第1絶縁体層と、
前記インダクタ形成用の第2導体パターン及び前記キャパシタ形成用の第2電極パターンが形成された第2絶縁体層と、
を備え、
前記第1電極パターンと前記第2電極パターンとが前記第2絶縁体層を介して対向することでキャパシタが構成され、
前記第2導体パターンは前記第1導体パターンに沿って少なくとも一部が導通する、
電子部品。 - 前記第1導体パターン及び前記第1電極パターンは第1パターン形成工程により同時に形成され、
前記第2導体パターン及び前記第2電極パターンは第2パターン形成工程により同時に形成された、
請求項1に記載の電子部品。 - 前記第2絶縁体層において、前記第1導体パターンの直上の少なくとも一部に開口部を備え、前記開口部に前記第2電極パターンが形成されている、
請求項1又は2に記載の電子部品 - 前記第1導体パターン及び前記第2導体パターンはループ形状又はループの一部を形成する形状であり、前記第1導体パターン及び前記第2導体パターンの積層方向から視た平面視での前記ループの内縁は前記第1導体パターン及び前記第2導体パターンとで同一箇所にある、
請求項1から3のいずれかに記載の電子部品。 - 第1絶縁体層に、インダクタ形成用の第1導体パターン及びキャパシタ形成用の第1電極パターンを同時に形成する工程と、
前記第1絶縁体層における前記第1導体パターンが形成された面に、前記第1導体パターンの上部を開口させた第2絶縁体層を形成する工程と、
前記開口内及び前記第2絶縁体層上に前記インダクタ形成用の第2導体パターンを形成し、前記第2絶縁体層を介して前記第1電極パターンに対向する位置に前記キャパシタ形成用の第2電極パターンを形成する工程と、
を備える、
電子部品の製造方法。 - 請求項1から4のいずれかに記載の電子部品と、当該電子部品に接続された、インダクタ又はキャパシタとを備えた、
フィルタモジュール。 - 請求項1から4のいずれかに記載の電子部品又は請求項6に記載のフィルタモジュールを備える電子機器。
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03166808A (ja) * | 1989-11-27 | 1991-07-18 | Mitsubishi Materials Corp | Emiフィルターネットワーク |
JP2000077911A (ja) * | 1998-09-02 | 2000-03-14 | Murata Mfg Co Ltd | 多層伝送線路及びこれを用いた電子部品 |
JP2010016337A (ja) * | 2008-06-30 | 2010-01-21 | Taida Electronic Ind Co Ltd | 磁性部品 |
JP2015220452A (ja) * | 2014-05-21 | 2015-12-07 | サムソン エレクトロ−メカニックス カンパニーリミテッド. | チップ電子部品及びその実装基板 |
-
2022
- 2022-01-31 CN CN202280010812.7A patent/CN116746056A/zh active Pending
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- 2022-01-31 WO PCT/JP2022/003666 patent/WO2022168802A1/ja active Application Filing
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Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03166808A (ja) * | 1989-11-27 | 1991-07-18 | Mitsubishi Materials Corp | Emiフィルターネットワーク |
JP2000077911A (ja) * | 1998-09-02 | 2000-03-14 | Murata Mfg Co Ltd | 多層伝送線路及びこれを用いた電子部品 |
JP2010016337A (ja) * | 2008-06-30 | 2010-01-21 | Taida Electronic Ind Co Ltd | 磁性部品 |
JP2015220452A (ja) * | 2014-05-21 | 2015-12-07 | サムソン エレクトロ−メカニックス カンパニーリミテッド. | チップ電子部品及びその実装基板 |
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