WO2015178313A1 - プリント配線板 - Google Patents
プリント配線板 Download PDFInfo
- Publication number
- WO2015178313A1 WO2015178313A1 PCT/JP2015/064049 JP2015064049W WO2015178313A1 WO 2015178313 A1 WO2015178313 A1 WO 2015178313A1 JP 2015064049 W JP2015064049 W JP 2015064049W WO 2015178313 A1 WO2015178313 A1 WO 2015178313A1
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- WIPO (PCT)
- Prior art keywords
- signal line
- printed wiring
- wiring board
- signal
- measurement result
- Prior art date
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0213—Electrical arrangements not otherwise provided for
- H05K1/0237—High frequency adaptations
- H05K1/024—Dielectric details, e.g. changing the dielectric material around a transmission line
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0213—Electrical arrangements not otherwise provided for
- H05K1/0216—Reduction of cross-talk, noise or electromagnetic interference
- H05K1/0228—Compensation of cross-talk by a mutually correlated lay-out of printed circuit traces, e.g. for compensation of cross-talk in mounted connectors
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J171/00—Adhesives based on polyethers obtained by reactions forming an ether link in the main chain; Adhesives based on derivatives of such polymers
- C09J171/08—Polyethers derived from hydroxy compounds or from their metallic derivatives
- C09J171/10—Polyethers derived from hydroxy compounds or from their metallic derivatives from phenols
- C09J171/12—Polyphenylene oxides
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P11/00—Apparatus or processes specially adapted for manufacturing waveguides or resonators, lines, or other devices of the waveguide type
- H01P11/001—Manufacturing waveguides or transmission lines of the waveguide type
- H01P11/003—Manufacturing lines with conductors on a substrate, e.g. strip lines, slot lines
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P3/00—Waveguides; Transmission lines of the waveguide type
- H01P3/02—Waveguides; Transmission lines of the waveguide type with two longitudinal conductors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P3/00—Waveguides; Transmission lines of the waveguide type
- H01P3/02—Waveguides; Transmission lines of the waveguide type with two longitudinal conductors
- H01P3/08—Microstrips; Strip lines
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P3/00—Waveguides; Transmission lines of the waveguide type
- H01P3/02—Waveguides; Transmission lines of the waveguide type with two longitudinal conductors
- H01P3/08—Microstrips; Strip lines
- H01P3/085—Triplate lines
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P3/00—Waveguides; Transmission lines of the waveguide type
- H01P3/02—Waveguides; Transmission lines of the waveguide type with two longitudinal conductors
- H01P3/08—Microstrips; Strip lines
- H01P3/088—Stacked transmission lines
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0213—Electrical arrangements not otherwise provided for
- H05K1/0237—High frequency adaptations
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/46—Manufacturing multilayer circuits
- H05K3/4611—Manufacturing multilayer circuits by laminating two or more circuit boards
- H05K3/4626—Manufacturing multilayer circuits by laminating two or more circuit boards characterised by the insulating layers or materials
- H05K3/4635—Manufacturing multilayer circuits by laminating two or more circuit boards characterised by the insulating layers or materials laminating flexible circuit boards using additional insulating adhesive materials between the boards
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/46—Manufacturing multilayer circuits
- H05K3/4644—Manufacturing multilayer circuits by building the multilayer layer by layer, i.e. build-up multilayer circuits
- H05K3/4673—Application methods or materials of intermediate insulating layers not specially adapted to any one of the previous methods of adding a circuit layer
- H05K3/4676—Single layer compositions
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0213—Electrical arrangements not otherwise provided for
- H05K1/0216—Reduction of cross-talk, noise or electromagnetic interference
- H05K1/0218—Reduction of cross-talk, noise or electromagnetic interference by printed shielding conductors, ground planes or power plane
- H05K1/0224—Patterned shielding planes, ground planes or power planes
- H05K1/0225—Single or multiple openings in a shielding, ground or power plane
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/03—Use of materials for the substrate
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/01—Dielectrics
- H05K2201/0137—Materials
- H05K2201/0141—Liquid crystal polymer [LCP]
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/06—Lamination
- H05K2203/061—Lamination of previously made multilayered subassemblies
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/40—Forming printed elements for providing electric connections to or between printed circuits
- H05K3/42—Plated through-holes or plated via connections
- H05K3/429—Plated through-holes specially for multilayer circuits, e.g. having connections to inner circuit layers
Definitions
- the present invention relates to a printed wiring board.
- Patent Document 1 A flexible printed circuit in which an adhesive layer using an epoxy-based thermosetting adhesive is formed between stacked unit substrates is known from the viewpoint of improving transmission characteristics at high frequencies while achieving high density.
- the problem to be solved by the present invention is to provide a printed wiring board having high transmission characteristics and high wiring density during high-frequency signal transmission.
- the present invention provides a first insulating substrate made of a liquid crystal polymer, a first signal line formed on one main surface of the first insulating substrate, and a second insulating substrate made of a liquid crystal polymer.
- the frequency is 0.0 GHz or less
- the position of one end portion farthest from the second signal line among the end portions along the width direction of the first signal line and the end along the width direction of the second signal line is Longer than the circuit width of the signal line, by providing a printed wiring board, characterized in
- the above problem is solved by setting the offset amount to 200 [ ⁇ m] or less.
- the first signal line transmits a signal having a first frequency
- the second signal line transmits a signal having a second frequency different from the first frequency
- the distance between the signal lines can be shortened while maintaining the transmission characteristics, the amount of accumulated pitch between the signal lines can be suppressed.
- FIG. 1 It is sectional drawing of the printed wiring board in one Embodiment of this invention. It is a figure for demonstrating the manufacturing method of the printed wiring board shown in FIG. It is a figure for demonstrating the structure of the printed wiring board which concerns on the Example of this embodiment. It is a figure which shows the measurement result of crosstalk S41 in the frequency of 700 MHz when offset amount S is changed in structure 1.
- FIG. It is a figure which shows the measurement result of crosstalk S41 in the frequency of 700 MHz when offset amount S is changed in the structure 2.
- FIG. 1 It is a figure which shows the measurement result of crosstalk S41 in the frequency of 700 MHz when the offset amount S is changed in the structure 4. It is a figure which shows the measurement result of crosstalk S41 in frequency 2.5GHz when the offset amount S is changed in the structure 1.
- FIG. 2 It is a figure which shows the measurement result of crosstalk S41 in frequency 2.5GHz when the offset amount S is changed in the structure 2.
- FIG. 2 It is a figure which shows the measurement result of crosstalk S41 in frequency 2.5GHz when the offset amount S is changed in the structure 3.
- FIG. It is a figure which shows the measurement result of crosstalk S41 in frequency 2.5GHz when the offset amount S is changed in the structure 4.
- the printed wiring board 1 according to the present invention is applied to a transmission line that connects between circuits in a device, between a circuit and a device, or between devices.
- the printed wiring board 1 of this embodiment is suitable for high-speed signal transmission, and can perform transmission based on various standards such as LVDS, MIPI, HDMI (registered trademark), USB, and the like.
- FIG. 1 is a cross-sectional view of a printed wiring board 1 in the present embodiment.
- the printed wiring board 1 of the present embodiment has a laminated structure in which a first base material 10 and a second base material 20 are laminated.
- a first base material 10 is stacked on the upper side of the second base material 20 is shown, but the reverse may be possible.
- the first base material 10 includes a first insulative base material 11 and first signal lines 131, 132, 133 ("" formed on one main surface 11a (lower side in the figure) of the first insulative base material 11. And a first ground layer 12 formed on the other main surface (upper side in the drawing) of the first insulating substrate 11.
- the first ground layer 12 is covered with a first protective layer 41.
- the second substrate 20 includes a second insulating substrate 21 and second signal lines 231, 232, 233 (“first”) formed on one main surface 21 a (upper side in the drawing) of the second insulating substrate 21. And a second ground layer 22 formed on the other main surface (lower side in the figure) of the second insulating base material 21. In the printed wiring board 1 shown in FIG. 1, the second ground layer 22 is covered with a second protective layer 42.
- the second signal line 231 of this embodiment shown in FIG. 1 is formed along the extending direction of the first signal line 131.
- the extending direction of the first signal line 131 and the extending direction of the second signal line 231 are substantially parallel. That is, the first signal line 131 and the second signal line 231 are in a parallel relationship. Further, the first signal line 131 and the second signal line 231 of this embodiment shown in FIG. 1 are arranged at positions shifted in the width direction of the signal line.
- the width direction of the second signal line 231 from the position (X1) of one end portion farthest from the position of the second signal line 231 is longer than the circuit width L1 of the first signal line 131. That is, as shown in FIG. 1, the first signal line 131 of the first base material 10 and the second signal line 231 of the second base material 20 that are stacked on each other are arranged in the width direction so as not to face each other in the stacking direction. (The horizontal direction in the figure) is shifted in position.
- the position of the other end closest to the second signal line 231 along the width direction of the first signal line 131 (Y1) and the width of the second signal line 231 along the width direction of the first signal line 131 are the most.
- the distance from the position (Y2) of the other end portion near is a value larger than zero.
- the printed wiring board 1 shown in FIG. 1 is a distance from the position X1 of one end portion along the width direction of the first signal line 131 to the one end portion X2 along the width direction of the second signal line 231.
- the certain offset amount S is preferably 300 [ ⁇ m] or less.
- the circuit width L1 of the first signal line 131 is 100 [ ⁇ m]
- the width of the second signal line 231 from the position (Y1) closest to the first signal line along the width direction of the first signal line 131 is 100 [ ⁇ m]
- the distance to the position (Y2) closest to the first signal line 131 along the direction, that is, the shortest distance in the circuit width direction of the first signal line 131 and the second signal line 231 is 200 [ ⁇ m].
- the offset amount is preferably 200 [ ⁇ m] or less.
- the circuit width L1 of the first signal line 131 is 100 [ ⁇ m]
- the second signal from the position (Y1) closest to the first signal line along the width direction of the first signal line 131 is obtained.
- the distance to the position (Y2) closest to the first signal line 131 along the width direction of the line 231, that is, the shortest distance in the direction along the circuit width of the first signal line 131 and the second signal line 231 is 100 ⁇ m. ].
- the circuit width L1 of the first signal line 131 and the circuit width L2 of the second signal line 231 may be the same value or different values.
- the thicknesses of the first signal line 131 and the second signal line 231 may be the same value or different values.
- the relationship between the first signal line 131 as an example of the first signal line 130 and the second signal line 132 as the second signal line 230 has been described, but one main surface of the first insulating substrate 11 is described.
- the relationship between the other first signal line 130 (not shown) formed on 11a and the other second signal line 230 (not shown) formed on the one main surface 21a of the second insulating substrate 21 is also applicable.
- the printed wiring board 1 of this embodiment can be configured to include a plurality of signal lines corresponding to the first signal lines 131 and the second signal lines 230 shown in FIG.
- the first signal line 131 of the present embodiment transmits a signal of a first frequency
- the second signal line 231 transmits a signal of a second frequency different from the first frequency.
- the printed wiring board 1 as a component is also required to have improved transmission characteristics at high frequencies.
- the frequency band of a mobile phone differs depending on each carrier, it is required to be able to transmit signals of a plurality of frequencies.
- a printed wiring board 1 capable of transmitting signals having a plurality of frequencies with high characteristics in a wide frequency band including high frequencies is provided.
- the first insulating substrate 11 and the second insulating substrate 21 are made of a material containing a liquid crystal polymer (hereinafter also referred to as “LCP”).
- the 1st insulating base material 11 and the 2nd insulating base material 21 of this embodiment are comprised from a liquid crystal polymer.
- the liquid crystal polymer of the present embodiment is not particularly limited as long as it is a resin that exhibits liquid crystal properties in a molten state. It may be a polyester-based liquid crystal polymer or an aramid-based liquid crystal polymer.
- the first signal line 130 and the second signal line 230 are made of a conductive material such as copper, silver, or gold.
- the first ground layer 12 and the second ground layer 22 are made of a conductive material such as copper, silver, or gold.
- the first ground layer 12 and the second ground layer 22 may be made of different conductive materials.
- the first protective layer 41 and the second protective layer 42 are cover materials such as a cover lay and a photosensitive liquid resist.
- an insulating material such as polyimide (PI), polyethylene terephthalate (PET), polyethylene naphthalate (PEN), or polyester (PE) can be used.
- the adhesive layer 30 is interposed between the first base material 10 and the second base material 20 of the present embodiment.
- the adhesive layer 30 adheres the one principal surface 11a of the first insulating substrate 11 and the one principal surface 21a of the second insulating substrate 21 constituting the first substrate 10 of the present embodiment.
- the first signal line 130 is formed on the one principal surface 11 a of the first insulating substrate 11, and the second signal line 230 is formed on the one principal surface 21 a of the second insulating substrate 21.
- the adhesive layer 30 of the present embodiment is made of a material containing modified polyphenylene ether (hereinafter also referred to as “m-PPE”).
- the adhesive layer 30 of this embodiment is composed of a modified polyphenylene ether.
- the modified polyphenylene ether can be appropriately selected from those available at the time of filing this application.
- the m-PPE used in the adhesive layer 30 in the present embodiment is, for example, a polyether imide heated and melt blended with a styrene-vinyl compound copolymer obtained by copolymerizing a styrene compound and a vinyl compound. By doing so, the material is provided with melt fluidity and high heat resistance.
- the m-PPE of the adhesive has, for example, a relative dielectric constant of 2.2 to 2.6 and a dielectric loss tangent of 0.002 to 0.01, a tensile strength of 30 to 50 MPa, and a tensile elastic modulus of 300 to 400 MPa at a frequency of 2 GHz.
- m-PPE has physical properties of a glass transition temperature of 230 to 250 ° C. and a thermal expansion coefficient of 100 to 300 ppm / ° C.
- m-PPE used in the present embodiment has the following physical properties.
- E) Tensile strength: 42 (MPa) [IS C2318]
- TMA Dynamic Mechanical Analysis
- the printed wiring board 1 of the present embodiment has a so-called stripline structure.
- the first insulating substrate 11 is interposed between the first ground layer 12 and the first signal line 131 (130), and the second insulating layer 11 is interposed between the second ground layer 22 and the second signal line 231 (230).
- Two insulating base materials 21 are interposed.
- the first signal line 131 (130) is sandwiched between the first ground layer 12 through the first insulating substrate 11 and the second ground layer 22 through the second insulating substrate 21.
- the second signal line 231 (230) is sandwiched between the second ground layer 22 via the second insulating substrate 21 and the first ground layer 12 via the first insulating substrate 11. .
- a ground line is formed on one main surface 11a of the first insulating substrate 11 on which the first signal line 131 (130) is formed, and a second signal line 231 (230) is formed. It is good also as what is called a coplanar line structure which formed the ground line in the one main surface 21a of the 2nd insulating base material 21.
- the first base material 10 on which the first signal line 130 is formed, the second base material 20 on which the second signal line 230 is formed, and the adhesive layer 30 are configured.
- a modified polyphenylene ether resin sheet 30 ' is prepared.
- the first base material 10 uses a copper clad substrate (CCL: Copper Clad Laminated) in which copper foils are formed on both main surfaces of the first insulating base material 11 made of, for example, a liquid crystal polymer having a thickness of 25 [ ⁇ m].
- the first substrate 10 of the present embodiment has an electrolytic copper foil having a thickness of 12.5 [ ⁇ m].
- a predetermined region of the copper foil on the one main surface 11a side of the first insulating substrate 11 is etched to form a desired first signal line 130.
- a predetermined region of the copper foil on the other main surface side of the first insulating base material 11 is etched as necessary to form the ground layer 12.
- the second base material 20 is a copper clad substrate (CCL: Copper Clad Laminated) in which copper foils are formed on both main surfaces of a second insulating base material 21 made of, for example, a liquid crystal polymer having a thickness of 25 [ ⁇ m]. It is produced using.
- the second substrate 20 of the present embodiment has an electrolytic copper foil having a thickness of 12.5 [ ⁇ m].
- a predetermined region of the copper foil on the one main surface 21 a side of the second insulating base material 21 is etched using the subtractive method, and a desired second signal line 230 is formed.
- a predetermined region of the copper foil is etched as necessary to form the ground layer 22.
- a modified polyphenylene ether resin sheet 30 ' is interposed between the first base material 10 and the second base material 20.
- the modified polyphenylene ether resin sheet 30 ′ is disposed between the one main surface 11 a of the first insulating substrate 11 and the one main surface 21 a of the second insulating substrate 21.
- the first base material 10 and the second base material 20 are stacked and laminated, and the lamination press is performed collectively.
- the first base material 10 is moved in the direction of arrow Z1 in FIG.
- the thermocompression bonding step is performed in a vacuum atmosphere at a heating temperature of 170 to 190 ° C. and a pressure of 5 to 20 kg / cm 2 for 30 to 60 minutes.
- the pressure curing temperature of m-PPE which is an adhesive constituting the adhesive layer 30 of this embodiment, is about 180 ° C. ⁇ 10 ° C., for example.
- it is performed in a vacuum atmosphere under pressing conditions of temperature: 180 ° C. ⁇ 10 ° C. and time: about 60 minutes.
- the m-PPE polymer constituting the adhesive layer 30 is alloyed to exhibit a soft characteristic with high heat resistance. Since the adhesive layer 30 of the present embodiment has flexibility, the flexible printed wiring board 1 can be obtained.
- the glass transition temperature of the 1st insulating base material 11 of this embodiment and the 2nd insulating base material 21 is 300 degreeC or more, for example.
- the pressure curing temperature of the adhesive layer 30 is lower than the glass transition temperature (300 ° C. or higher) of the first insulating base material 11 / the second insulating base material 21.
- thermocompression bonding process of the present embodiment a hot press process at a high temperature is not required. Therefore, the printing according to the embodiment of the present invention is performed using an existing FPC manufacturing facility that uses a polyimide resin as an insulating substrate.
- the wiring board 1 can be produced.
- an inexpensive press device such as a steam heating type or a thermal solvent superheated oil type can be used, so that the manufacturing cost of the printed wiring board 1 can be reduced.
- a through hole TH having a predetermined diameter that penetrates the first base material 10 and the second base material 20 is formed.
- the formation method of the through hole TH is not particularly limited, and drilling may be performed using an NC drill or laser processing.
- the first base material 10 and the second base material 20 are subjected to a direct plating process, and then the through holes TH are plated.
- Interlayer conductive layer 50 is formed by plating.
- the first signal line 130, the second signal line 230, the first ground layer 12, and the second ground layer 22 are electrically connected by the interlayer conductive layer 50 to achieve interlayer conduction.
- predetermined circuits are formed on the first ground layer 12 and the second ground layer 22.
- a protective layer 41 covering the first ground layer 12 and a protective layer 42 covering the second ground layer 22 are formed to obtain the printed wiring board 1 shown in FIG. Note that since the first ground layer 12 and the second ground layer 22 are provided with a reference potential (power supply potential, ground potential), the first signal line 132 and the second signal line 232 also have the reference potential.
- a coaxial connector is mounted on the surface of the printed wiring board 1.
- signal input / output is performed via a coaxial connector surface-mounted on the printed wiring board 1. Since the coaxial connector can be mounted using a conventional mounting line, the printed wiring board 1 according to the present embodiment can be manufactured without introducing new equipment. Further, by using a surface mount connector for signal input / output, it is easy to attach and detach components. Even when the installation space is reduced in accordance with the miniaturization of the product, the product can be efficiently assembled. As a result, reduction of work man-hours and reduction of process costs can be realized.
- the dielectric constant and dielectric loss tangent are kept low. be able to. It is possible to realize a structure that is superior in high-frequency characteristics than those using conventional polyimide resins and can transmit signals at high speed without losing flexibility.
- the printed wiring board 1 of the present embodiment has a low dielectric constant by combining the first and second insulating substrates 11 and 21 made of a liquid crystal polymer and the adhesive layer 30 of the modified polyphenylene ether. High-speed transmission can be realized. Further, since the printed wiring board 1 of the present embodiment can wire a plurality of independent signal lines inside the adhesive layer 30 constituting the multilayer substrate, signals of two or more different frequencies in one printed wiring board 1 are used. Can be transmitted.
- the first signal line 131 (130) and the second signal line 231 (230) are arranged so as to be shifted along the circuit width direction. Since the distance between (130) and the second ground layer 22 and the distance between the second signal line 231 (230) and the first ground layer 12 are secured, the signal lines can transmit signals without interfering with each other. For this reason, highly reliable signal transmission can be performed in both the first signal line 131 (130) and the second signal line 231 (230). Even if the characteristic impedance of each signal line is matched, the circuit width of each signal line can be designed to be large, so that the transmission characteristics can be kept high. Moreover, since the thickness of the printed wiring board 1 can be prevented from being increased, the flexibility and bending characteristics are not impaired.
- the printed wiring board 1 has one first signal line 131 and one second signal line 231.
- the line width of the first signal line 131 is defined as the circuit width L1
- the line width of the second signal line 231 is defined as the circuit width L2.
- the circuit width L1 of the first signal line 131 and the circuit width L2 of the second signal line 231 are common.
- the thickness of the first signal line 131 along the stacking direction of the first base material 10 and the second base material 20 is defined as the thickness t1
- the thickness of the second signal line 231 along the stacking direction is defined as the thickness t2.
- the thickness t1 of the first signal line 131 and the thickness t2 of the second signal line 231 are the same.
- the position P1 of the one end portion farthest from the second signal line 231 among the end portions on both sides of the first signal line 131 extends in the width direction of the second signal line 231.
- the distance to the position P2 at one end closest to the first signal line 131 among the ends on both sides of the second signal line 231 is defined as an offset amount S.
- the distance between the second signal line 231 along the plane and the position of the plane is defined as the inter-conductor distance D.
- the design value of the circuit width L is changed to 25 [ ⁇ m], 50 [ ⁇ m], and 100 [ ⁇ m] while having the basic structure shown in FIG. Structure 1, Structure 2, Structure 4, and Structure 4 in which the design value of the distance D was changed to 30 [ ⁇ m] and 60 [ ⁇ m] were defined as shown in Table 1 below.
- the first insulating substrate 11 ′ (corresponding configuration, the same applies hereinafter) and the second insulating substrate 21 ′ (corresponding configuration, the same applies hereinafter) are made of polyimide, and the adhesive layer 30 ′ (corresponding to the equivalent).
- the following are the same: acrylic epoxy adhesive (dielectric constant 3.6 to 3.8 (2 GHz), dielectric loss tangent 0.03 to 0.04, copper peel strength 9 N / cm, water absorption 2.0 % Of the printed wiring board 1 ′.
- a printed wiring board 1 ′ according to this comparative example includes the structure 1, the structure 2, the structure 3, and the structure 4 shown in Table 1 as in the present embodiment.
- Table 2 shows the physical property values.
- the m-PPE resin film used in the adhesive layer 30 of this example has a dielectric constant of 2.2 to 2.6 (2 GHz), a dielectric loss tangent of 0.002 to 0.01, a copper peeling strength of 7 N / cm, and a water absorption rate. 0.2%. Since the adhesive layer 30 is composed of the m-PPE resin film, it can be pressed at about 180 ⁇ (plus or minus) 10 ° C. in the laminating process when producing the multilayer substrate. Thus, since it can process at comparatively low temperature, it can manufacture using the manufacturing apparatus of the existing flexible printed circuit board. Moreover, since processing can be performed at a relatively low temperature, variation in dimensions of the printed wiring board 1 to be manufactured can be suppressed.
- the lamination laminating process can be performed in a lump.
- the m-PPE resin film of such a material as the adhesive layer 30 it is possible to reduce the number of steps required for manufacturing and to reduce the auxiliary materials used when performing the lamination press.
- the m-PPE resin film has moisture absorption resistance. Further, since the m-PPE resin film has a low dielectric constant, the transmission characteristics are improved by interposing it.
- the crosstalk S41 [dB] measured in the present embodiment is a measured value indicating the degree to which a transmission signal on one signal line (transmission path) leaks to another signal line (transmission path) among a plurality of signal lines. is there.
- an example in which the value of the crosstalk S41 is low is evaluated as indicating that there is little signal leakage and shows good transmission characteristics.
- Example 1-1 and Comparative Example 1-1 have a structure 1
- Example 1-2 and Comparative Example 1-2 have a structure 2
- Example 1-3 and Comparative Example 1-3 have a structure 3.
- Example 1-4 and Comparative Example 1-4 have the structure 4.
- FIG. 4A shows the measurement result of the crosstalk S41 with respect to the offset amount for the example 1-1 and the comparative example 1-1 having the structure 1.
- FIG. 4B shows the measurement result of the crosstalk S41 with respect to the offset amount for the example 1-2 and the comparative example 1-2 having the structure 2.
- FIG. 4C shows the measurement result of the crosstalk S41 with respect to the offset amount for the example 1-3 and the comparative example 1-3 having the structure 3.
- FIG. 4D shows the measurement result of the crosstalk S41 with respect to the offset amount for the example 1-4 and the comparative example 1-4 including the structure 4. Examples are indicated by solid lines, and comparative examples are indicated by broken lines.
- Example 2-1 and comparative example 2-1 have structure 1
- example 2-2 and comparative example 2-2 have structure 2
- example 2-3 and comparative example 2-3 have structure 3.
- Example 2-4 and Comparative Example 2-4 include structure 4. Since this measurement result showed the same tendency as 700 MHz, illustration is omitted.
- Example 3-1 and Comparative Example 3-1 have Structure 1
- Example 3-2 and Comparative Example 3-2 have Structure 2
- Example 3-3 and Comparative Example 3-3 have Structure 3.
- Example 3-4 and Comparative Example 3-4 include structure 4. Since this measurement result showed the same tendency as 700 MHz, illustration is omitted.
- Example 4-1 to 4-4 and Comparative Examples 4-1 to 4-4 in the case where the offset amount S is changed when the frequency of the signal to be transmitted is 1.5 GHz. dB] is shown.
- Example 4-1 and Comparative Example 4-1 have Structure 1
- Example 4-2 and Comparative Example 4-2 have Structure 2
- Example 4-3 and Comparative Example 4-3 have Structure 3.
- Example 4-4 and Comparative Example 4-4 have the structure 4. Since this measurement result showed the same tendency as 700 MHz, illustration is omitted.
- Example 5-1 and Comparative Example 5-1 have Structure 1
- Example 5-2 and Comparative Example 5-2 have Structure 2
- Example 5-3 and Comparative Example 5-3 have Structure 3.
- Example 5-4 and Comparative Example 5-4 include the structure 4. Since this measurement result showed the same tendency as 700 MHz, illustration is omitted.
- Example 6-1 and Comparative Example 6-1 have Structure 1
- Example 6-2 and Comparative Example 6-2 have Structure 2
- Example 6-3 and Comparative Example 6-3 have Structure 3.
- Example 6-4 and Comparative Example 6-4 include structure 4. Since this measurement result showed the same tendency as 700 MHz, illustration is omitted.
- Example 7-1 and Comparative Example 7-1 have Structure 1
- Example 7-2 and Comparative Example 7-2 have Structure 2
- Example 7-3 and Comparative Example 7-3 have Structure 3.
- Example 7-4 and Comparative Example 7-4 include structure 4.
- FIG. 5A shows the measurement result of the crosstalk S41 with respect to the offset amount for the example 7-1 and the comparative example 7-1 having the structure 1.
- FIG. 5B shows the measurement result of the crosstalk S41 with respect to the offset amount for Example 7-2 and Comparative Example 7-2 having the structure 2.
- FIG. 5C shows the measurement result of the crosstalk S41 with respect to the offset amount for Example 7-3 and Comparative Example 7-3 including the structure 3.
- FIG. 5D shows the measurement result of the crosstalk S41 with respect to the offset amount for Example 7-4 having the structure 4 and Comparative Example 7-4. Examples are indicated by solid lines, and comparative examples are indicated by broken lines.
- the pattern of the crosstalk S41 having a frequency of a signal to be transmitted of 2.5 GHz is almost the same as the pattern of the crosstalk S41 having a frequency of 700 MHz to 2.0 GHz.
- Example 8-1 and Comparative Example 8-1 include Structure 1
- Example 8-2 and Comparative Example 8-2 include Structure 2
- Example 8-3 and Comparative Example 8-3 include Structure 3.
- Example 8-4 and Comparative Example 8-4 include structure 4.
- FIG. 6A shows the measurement result of the crosstalk S41 with respect to the offset amount for Example 8-1 and Comparative Example 8-1 including the structure 1.
- FIG. 6B shows the measurement result of the crosstalk S41 with respect to the offset amount for the example 8-2 having the structure 2 and the comparative example 8-2.
- FIG. 6C shows the measurement result of the crosstalk S41 with respect to the offset amount for Example 8-3 and Comparative Example 8-3 having the structure 3.
- FIG. 6D shows the measurement result of the crosstalk S41 with respect to the offset amount for the example 8-4 having the structure 4 and the comparative example 8-4. Examples are indicated by solid lines, and comparative examples are indicated by broken lines.
- the measurement result of the crosstalk S41 of the printed wiring board 1 of Examples 3-1 to 3-4 is lower and better than the measurement result of the crosstalk S41 of the printed wiring board 1 ′ of Comparative Examples 3-1 to 3-4 Showed a good value.
- the measurement result of the crosstalk S41 of the printed wiring board 1 of Examples 4-1 to 4-4 is lower and better than the measurement result of the crosstalk S41 of the printed wiring board 1 'of Comparative Examples 4-1 to 4-4 Showed a good value.
- the measurement result of the crosstalk S41 of the printed wiring board 1 of Examples 5-1 to 5-4 is lower and better than the measurement result of the crosstalk S41 of the printed wiring board 1 ′ of Comparative Examples 5-1 to 5-4. Showed a good value.
- the measurement results of the crosstalk S41 of the printed wiring boards 1 of Examples 6-1 to 6-4 are lower and better than the measurement results of the crosstalk S41 of the printed wiring boards 1 'of Comparative Examples 6-1 to 6-4 Showed a good value.
- the measurement result of the crosstalk S41 of the printed wiring board 1 of Examples 7-1 to 7-4 is lower and better than the measurement result of the crosstalk S41 of the printed wiring board 1 ′ of Comparative Examples 7-1 to 7-4. Showed a good value.
- the measurement result of the crosstalk S41 of the printed wiring board 1 of Examples 8-1 to 8-4 is lower and better than the measurement result of the crosstalk S41 of the printed wiring board 1 ′ of Comparative Examples 8-1 to 8-4. Showed a good value.
- the measurement result of the crosstalk S41 of the printed wiring board 1 of each example is the measurement result of the crosstalk S41 of the printed wiring board 1 ′ of each comparative example. An advantageous difference was shown. Furthermore, when the offset amount S is 200 [ ⁇ m] or less, the measurement result of the crosstalk S41 of the printed wiring board 1 of each example is the measurement of the crosstalk S41 of the printed wiring board 1 ′ of each comparative example. A more favorable difference was shown for the results.
- the measurement result of the crosstalk S41 of the printed wiring board 1 of each example is the printed wiring of each comparative example.
- the tendency which shows a value lower than the measurement result of crosstalk S41 of board 1 ' was seen, and the favorable result was shown.
- the measurement result of the crosstalk S41 of the printed wiring board 1 of each example is The tendency which shows a value lower than the measurement result of crosstalk S41 of printed wiring board 1 'of each comparative example was seen.
- the measurement result of the crosstalk S41 of the printed wiring board 1 of each embodiment is The tendency which shows a still lower value with respect to the measurement result of crosstalk S41 of printed wiring board 1 'of each comparative example was seen, and the advantageous difference was shown.
- the measurement result of the crosstalk S41 of the printed wiring board 1 of each example is the printed wiring of each comparative example It was lower than the measurement result of the crosstalk S41 of the plate 1 'and showed a good value.
- the frequency of the signal to be transmitted is less than 2
- 5 GHz and the offset amount S is 300 [ ⁇ m] or less
- the measurement result of the crosstalk S41 of the printed wiring board 1 of each embodiment is An advantageous difference was shown with respect to the measurement result of the crosstalk S41 of the printed wiring board 1 ′ of each comparative example.
- the measurement result of the crosstalk S41 of the printed wiring board 1 of each example is A more advantageous difference was shown with respect to the measurement result of the crosstalk S41 of the printed wiring board 1 ′ of each comparative example.
- the measurement result of the crosstalk S41 [dB] of the printed wiring board 1 of Example 7-1 having the structure 1 shows that the offset amount S is 22 [ ⁇ m] or more. And when it was 400 [ ⁇ m] or less, a value better than the crosstalk S41 of the printed wiring board 1 according to Comparative Example 7-1 was shown.
- the measurement result of the crosstalk S41 [dB] of the printed wiring board 1 of Example 7-2 having the structure 2 shows that the offset amount S is 400 [ ⁇ m] or less. In this case, the value was better than the crosstalk S41 of the printed wiring board 1 according to Comparative Example 7-2.
- the measurement result of the crosstalk S41 [dB] of the printed wiring board 1 of Example 7-3 having the structure 3 shows that the offset amount S is 400 [ ⁇ m] or less. In this case, the value was better than the crosstalk S41 of the printed wiring board 1 according to Comparative Example 7-3.
- the measurement result of the crosstalk S41 [dB] of the printed wiring board 1 of Example 7-4 having the structure 4 shows that the printed wiring according to Comparative Example 7-4 is obtained when the offset amount S is 400 [ ⁇ m] or less. A value better than the crosstalk S41 of the plate 1 was shown.
- the measurement result of the crosstalk S41 [dB] of the printed wiring board 1 of Example 8-1 having the structure 1 shows that the offset amount S is 130 [ ⁇ m] or more. And when it was 400 [ ⁇ m] or less, a value better than the crosstalk S41 of the printed wiring board 1 according to Comparative Example 8-1 was exhibited.
- the measurement result of the crosstalk S41 [dB] of the printed wiring board 1 of Example 8-2 having the structure 2 shows that the offset amount S is 42 [ ⁇ m] or more. In this case, a better value than the crosstalk S41 of the printed wiring board 1 according to Comparative Example 8-2 was exhibited.
- the measurement result of the crosstalk S41 [dB] of the printed wiring board 1 of Example 8-3 having the structure 3 shows that the offset amount S is 20 [ ⁇ m] or more. In this case, a better value than the crosstalk S41 of the printed wiring board 1 according to Comparative Example 8-3 was exhibited.
- the measurement result of the crosstalk S41 [dB] of the printed wiring board 1 of Example 8-4 having the structure 4 shows that the printed wiring according to the comparative example 8-4 is obtained when the offset amount S is 76 [ ⁇ m] or more. A value better than the crosstalk S41 of the plate 1 was shown.
- the transmission characteristic S31 [dB] measured in the present embodiment is a measured value indicating how much of the input signal is output. That is, the transmission characteristic S31 [dB] in the present embodiment is an index value indicating how much the signal has flowed with respect to the input signal.
- the transmission characteristic S31 in this embodiment takes a value from 0 to 1. In the present embodiment, the transmission characteristic S31 having a value close to 1.0 (small difference) is evaluated as indicating good transmission characteristics.
- Example 10-1 to Example 10-8 include structure 1.
- the comparative examples 10-1 to 10-8 similarly have the structure 1.
- FIG. 7A shows the measurement result of the transmission characteristic S31 with respect to the offset amount for Example 10-1 and Comparative Example 10-1 in which the frequency of the signal to be transmitted is 700 MHz.
- FIG. 7B shows the measurement result of the transmission characteristic S31 with respect to the offset amount for Example 10-2 and Comparative Example 10-2 in which the frequency of the signal to be transmitted is 800 MHz.
- FIG. 7C shows the measurement result of the transmission characteristic S31 with respect to the offset amount for Example 10-3 and Comparative Example 10-3 in which the frequency of the signal to be transmitted is 900 MHz.
- FIG. 7D shows the measurement result of the transmission characteristic S31 with respect to the offset amount for Example 10-4 and Comparative Example 10-4 in which the frequency of the signal to be transmitted is 1.5 GHz.
- FIG. 7E shows the measurement result of the transmission characteristic S31 with respect to the offset amount for Example 10-5 and Comparative Example 10-5 in which the frequency of the signal to be transmitted is 1.7 GHz.
- FIG. 7F shows the measurement result of the transmission characteristic S31 with respect to the offset amount for Example 10-6 and Comparative Example 10-6 in which the frequency of the signal to be transmitted is 2.0 GHz.
- FIG. 7G shows the measurement result of the transmission characteristic S31 with respect to the offset amount for Example 10-7 and Comparative Example 10-7 in which the frequency of the signal to be transmitted is 2.5 GHz.
- FIG. 7H shows the measurement result of the transmission characteristic S31 with respect to the offset amount for Example 10-8 and Comparative Example 10-8 in which the frequency of the signal to be transmitted is 5.0 GHz.
- the examples are indicated by solid lines, and the comparative examples are indicated by broken lines.
- the measurement result of the transmission characteristic S31 of the printed wiring board 1 according to each example is 1.0 than the measurement result of the transmission characteristic S31 of the printed wiring board 1 ′ of each comparative example. It was close and showed a good value. Note that the pattern of the transmission characteristic S31 in the embodiment in which the frequency of the signal to be transmitted is 700 MHz to 2.5 GHz is almost the same.
- the measurement results of the transmission characteristics S31 of the printed wiring boards 1 of Examples 10-1 to 10-8 are as follows. Further, a value closer to 1 or equivalent to the measurement result of the transmission characteristic S31 of the printed wiring board 1 ′ of Comparative Examples 10-1 to 10-8 was shown. Further, when the offset amount S is 300 [ ⁇ m] or less, the measurement results of the transmission characteristics S31 of the printed wiring boards 1 of Examples 10-1 to 10-8 are the print results of Comparative Examples 10-1 to 1-8. A value closer to or equivalent to 1.0 than the measurement result of the transmission characteristic S31 of the wiring board 1 ′ was shown.
- the measurement results of the transmission characteristics S31 of the printed wiring boards 1 of Examples 10-1 to 10-8 are the prints of Comparative Examples 10-1 to 10-8. A value closer to 1.0 was shown than the measurement result of the transmission characteristic S31 of the wiring board 1.
- the measurement results of the transmission characteristics S31 of the printed wiring boards 1 of Examples 10-1 to 10-7 were compared when the offset amount S was 200 [ ⁇ m] or less. Values closer to 1.0 were shown than the measurement results of the transmission characteristics S31 of the printed wiring boards 1 'of Examples 10-1 to 10-7.
- the transmission characteristic S31 of the printed wiring board 1 of Examples 10-1 to 10-7 The measurement results showed values closer to or equivalent to 1.0 than the measurement results of the transmission characteristics S31 of the printed wiring boards 1 ′ of Comparative Examples 10-1 to 10-7. Similarly, when the frequency of the signal to be transmitted is 2.5 GHz or less, the above effect was confirmed when the offset amount S was 300 [ ⁇ m] or less.
- the measurement result of the transmission characteristic S31 of the printed wiring board 1 of Examples 10-1 to 10-7 Shows a value 1.0 lower than the measurement result of the transmission characteristic S31 of the printed wiring board 1 'of Comparative Examples 10-1 to 10-7.
- the measurement result of the transmission characteristic S31 of the printed wiring board 1 of Example 10-8 when the offset amount S is 400 [ ⁇ m] or less is that of Comparative Example 10-8.
- a value closer to 1.0 was shown than the measurement result of the transmission characteristic S31 of the printed wiring board 1 ′.
- the measurement result of the transmission characteristic S31 of the printed wiring board 1 of Example 10-8 is less than that of Comparative Example 10-8 when the offset amount S is 300 [ ⁇ m] or less.
- a value closer to 1.0 was shown than the measurement result of the transmission characteristic S31 of the printed wiring board 1 ′.
- the measurement result of the transmission characteristic S31 of the printed wiring board 1 of Example 10-8 when the offset amount S is 200 [ ⁇ m] or less is that of Comparative Example 10-8.
- a value closer to 1.0 was shown than the measurement result of the transmission characteristic S31 of the printed wiring board 1 ′.
- the measurement result of the transmission characteristic S31 of the printed wiring board 1 of Example 10-8 when the offset amount S is 61 [ ⁇ m] or more is that of Comparative Example 10-8.
- a value closer to 1.0 was shown than the measurement result of the transmission characteristic S31 of the printed wiring board 1 ′.
- the measurement result of the transmission characteristic S31 [dB] of the printed wiring board 1 of Example 10-8 is 0.6.
- the above values were better than those of Comparative Example 10-8 at high frequencies.
- the measurement result of the transmission characteristic S31 [dB] of the printed wiring board 1 of Example 10-8 is 0.8 or more, which is better than Comparative Example 10-8 at high frequency. The value is shown.
- the printed wiring board 1 of this embodiment includes a first insulating substrate 11 made of a liquid crystal polymer, a first signal line 131 formed on one main surface of the first insulating substrate 11, and a first electrode made of a liquid crystal polymer.
- 2 insulating base material 21, second signal line 232 formed on one main surface 21 a of second insulating base material 21 along the extending direction of first signal line 131, and first insulating base material 11 is provided with an adhesive layer 30 made of modified polyphenylene ether for adhering one main surface 11a of the second insulating base material 21 to one main surface 21a of the second insulating substrate 21.
- the offset amount S which is the distance to the position P2, of the first signal line 131 is longer than the circuit width L1 of the first signal line 131 and 300 [ ⁇ m] or less, so that the transmission characteristics are maintained and the thickness and size are reduced. It is possible to provide a printed wiring board 1 that can cope with the manufacturing process. In particular, when a plurality of signal lines are provided, the cumulative amount of pitch width can be reduced, so that the printed wiring board 1 suitable for reduction in thickness and size can be provided.
- the transmission characteristics can be maintained even when the offset amount is 200 [ ⁇ m] or less, it can contribute to further thinning and miniaturization.
- the offset amount S can be reduced.
- each signal line Since the transmission characteristics of each signal line can be maintained, signals of different frequencies can be transmitted to each signal line. That is, a first frequency signal can be transmitted to the first signal line, and a second frequency signal can be transmitted to the second signal line. Thereby, the request
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Abstract
Description
(a)キュア条件:200℃/1hr(60分)
(b)誘電率:2.4(2GHz)[空洞共振器測定]
(c)誘電正接:0.0029(2GHz)[空洞共振器測定]
(d)銅引き剥がし強さ:7(N/cm)[JIS C6471]
(e)引っ張り強さ:42(MPa)[IS C2318]
(f)延び:250(%)[JIS 2318]
(g)引っ張り係数:325(MPa)[JIS K7113]
(h)ガラス転移温度:235(℃)[DMA(Dynamic Mechanical Analysis):弾性率を検出する動的粘弾性測定] JIS 6481]
(i)熱膨張係数α1:110(ppm/℃) [TMA(Thermal Mechanical Analysis):熱膨張率を測定する熱機械分析 JIS 6481]
(j)体積抵抗:1(E15Ωcm)[JIS 2170]
(k)熱抵抗:370(℃)[TG-DTA(示差熱-熱重量同時測定)]
(l)吸水率:0.1より小(%)[JIS 2318]
(m)塩素イオン:10(ppm)より小[121℃/100%RH/20hr経過後に水分を抽出して測定]
(n)ナトリウムイオン:5(ppm)より小[121℃/100%RH/20hr経過後に水分を抽出して測定]
(o)カリウムイオン:5(ppm)より小[121℃/100%RH/20hr経過後に水分を抽出して測定]
以下、本発明の本実施形態における実施例を説明する。以下に説明する実施例により、本実施形態のプリント配線板1のクロストークなどの伝送特性を検証する。
11…第1絶縁性基材
131,132,133…第1信号線
12…第1グランド層
21…第2絶縁性基材
231,232,233…第2信号線
20…保護層
22…第2グランド層
30…接着層
41,42…カバー部材
TH…スルーホール
50…層間導通層
Claims (3)
- 液晶ポリマーからなる第1絶縁性基材と、
前記第1絶縁性基材の一方主面に形成された第1信号線と、
液晶ポリマーからなる第2絶縁性基材と、
前記第2絶縁性基材の一方主面に、前記第1信号線の延在方向に沿って形成された第2信号線と、
前記第1絶縁性基材の一方主面と前記第2絶縁性基材の一方主面とを接着させる、変性ポリフェニレンエーテルからなる接着層と、を備え、
前記第1信号線及び前記第2信号線が伝達する信号の周波数が2.5GHz以上かつ5.0GHz以下である場合には、前記第1信号線の幅方向に沿う端部のうちの前記第2信号線から最も遠い一方端部の位置と、前記第2信号線の幅方向に沿う端部のうちの前記第1信号線に最も近い一方端部の位置との距離であるオフセット量が、前記第1信号線の回路幅よりも長く、130μm以上かつ300μm以下であることを特徴とするプリント配線板。 - 前記オフセット量は、200μm以下であることを特徴とする請求項1に記載のプリント配線板。
- 前記第1信号線は、第1周波数の信号を伝達し、
前記第2信号線は、第1周波数とは異なる第2周波数の信号を伝達することを特徴とする請求項1又は2に記載のプリント配線板。
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KR1020167034279A KR101700397B1 (ko) | 2014-05-21 | 2015-05-15 | 프린트 배선판 |
US15/305,232 US9807870B2 (en) | 2014-05-21 | 2015-05-15 | Printed wiring board |
CN201580020126.8A CN106233825B (zh) | 2014-05-21 | 2015-05-15 | 印刷布线板 |
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JP2014105107A JP5658399B1 (ja) | 2014-05-21 | 2014-05-21 | プリント配線板 |
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US (1) | US9807870B2 (ja) |
JP (1) | JP5658399B1 (ja) |
KR (1) | KR101700397B1 (ja) |
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WO2022224323A1 (ja) * | 2021-04-19 | 2022-10-27 | 山一電機株式会社 | 高周波信号伝送装置、及び高周波信号伝送ケーブル |
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JP6537172B2 (ja) * | 2015-06-01 | 2019-07-03 | 住友電工プリントサーキット株式会社 | プリント配線板 |
TWI685133B (zh) * | 2016-07-01 | 2020-02-11 | 薩摩亞商亮通國際有限公司 | 發光二極體元件結構、支架材料、以及支架的製備方法 |
KR102214641B1 (ko) * | 2018-07-16 | 2021-02-10 | 삼성전기주식회사 | 인쇄회로기판 |
TWI696197B (zh) | 2018-11-21 | 2020-06-11 | 貿聯國際股份有限公司 | 高頻軟性扁平排線 |
CN110113865A (zh) * | 2019-05-28 | 2019-08-09 | 苏州福莱盈电子有限公司 | 一种防止高频信号泄露的线路板结构及其制作方法 |
JP2021170570A (ja) * | 2020-04-14 | 2021-10-28 | キオクシア株式会社 | 半導体記憶装置 |
CN111586965B (zh) * | 2020-05-25 | 2022-03-22 | 上海航天电子通讯设备研究所 | 基于lcp基材的高功率共形组件制备方法及共形组件 |
JP2022032293A (ja) | 2020-08-11 | 2022-02-25 | 日本メクトロン株式会社 | 配線体およびその製造方法 |
CN116235363A (zh) * | 2020-10-12 | 2023-06-06 | 株式会社村田制作所 | 定向耦合器 |
CN215418829U (zh) * | 2021-04-08 | 2022-01-04 | 东莞富强电子有限公司 | 电连接器 |
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WO2022224323A1 (ja) * | 2021-04-19 | 2022-10-27 | 山一電機株式会社 | 高周波信号伝送装置、及び高周波信号伝送ケーブル |
JP7568976B2 (ja) | 2021-04-19 | 2024-10-17 | 山一電機株式会社 | 高周波信号伝送装置、及び高周波信号伝送ケーブル |
Also Published As
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KR20160148711A (ko) | 2016-12-26 |
JP2015220425A (ja) | 2015-12-07 |
US20170048968A1 (en) | 2017-02-16 |
CN106233825A (zh) | 2016-12-14 |
TWI592082B (zh) | 2017-07-11 |
US9807870B2 (en) | 2017-10-31 |
TW201613442A (en) | 2016-04-01 |
KR101700397B1 (ko) | 2017-01-26 |
JP5658399B1 (ja) | 2015-01-21 |
CN106233825B (zh) | 2017-09-19 |
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