WO2007026601A1 - 光導波路フィルムとその製造方法、それを含む光電気混載フィルムおよび電子機器 - Google Patents
光導波路フィルムとその製造方法、それを含む光電気混載フィルムおよび電子機器 Download PDFInfo
- Publication number
- WO2007026601A1 WO2007026601A1 PCT/JP2006/316652 JP2006316652W WO2007026601A1 WO 2007026601 A1 WO2007026601 A1 WO 2007026601A1 JP 2006316652 W JP2006316652 W JP 2006316652W WO 2007026601 A1 WO2007026601 A1 WO 2007026601A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- film
- optical waveguide
- thickness
- core
- waveguide film
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
- G02B6/122—Basic optical elements, e.g. light-guiding paths
- G02B6/1221—Basic optical elements, e.g. light-guiding paths made from organic materials
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
- G02B6/13—Integrated optical circuits characterised by the manufacturing method
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
- G02B6/122—Basic optical elements, e.g. light-guiding paths
- G02B6/1228—Tapered waveguides, e.g. integrated spot-size transformers
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4292—Coupling light guides with opto-electronic elements the light guide being disconnectable from the opto-electronic element, e.g. mutually self aligning arrangements
- G02B6/4293—Coupling light guides with opto-electronic elements the light guide being disconnectable from the opto-electronic element, e.g. mutually self aligning arrangements hybrid electrical and optical connections for transmitting electrical and optical signals
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/43—Arrangements comprising a plurality of opto-electronic elements and associated optical interconnections
-
- 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
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
- G02B6/4214—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms the intermediate optical element having redirecting reflective means, e.g. mirrors, prisms for deflecting the radiation from horizontal to down- or upward direction toward a device
Definitions
- the present invention relates to a polymer optical waveguide film and an electronic device provided with the same.
- a polymer optical waveguide film and an electronic device provided with the same.
- the present invention relates to an optical waveguide film that is bent and arranged in an electronic device.
- Materials widely used as a base material for optical components or optical fibers are inorganic materials such as quartz glass and multi-component glass, which are characterized by a small transmission loss and a wide transmission band. .
- polymer materials have also been developed as optical waveguide materials, and these are attracting attention because they are superior in strength and cost compared to inorganic materials.
- PMMA polymethylmetatalate
- a flat-type optical waveguide film having a clad structure cover has been produced.
- these optical waveguide films made of polymer materials are flexible, they are expected to be applied in the same manner as flexible electric circuit boards used in electric circuits.
- a flexible electric circuit board may be placed between two parts connected by a hinge (hinge) of a mobile phone or the like across the hinge part.
- the flexible electric circuit board is wound around a shaft or a cavity while having flexibility at the hinge portion according to the radius of curvature according to the thickness of the hinge.
- the flexible electric circuit board disposed in the hinge portion is as small as about 2 mm. It is bent with a radius of curvature. For this reason, problems such as the occurrence of noise and the deterioration of image quality have become apparent.
- One method for solving this problem is to use optical wiring.
- a flexible optical waveguide film can be considered as one of the optical wiring.
- the optical wiring and electrical wiring may be arranged separately, but by using an opto-electric hybrid film in which the optical waveguide and the electrical wiring layer are integrally formed, space saving, thinness and downsizing can be achieved. Yes.
- the integrated opto-electric hybrid film in which the optical waveguide film and the flexible electric wiring board are laminated has a total thickness exceeding 150 m, and there is a concern that the flex resistance is inferior.
- the core size of the optical waveguide film In order to reduce the thickness of the optical waveguide film, it is necessary to reduce the core size of the optical waveguide film. As the core size decreases, the tolerance for misalignment decreases, leading to a reduction in optical coupling efficiency.
- the core diameter of the light input portion is required to be about 100 m to 150 m.
- the total film thickness of the optical waveguide film is about 30 m above the core diameter. If the bent portion has such a thickness, depending on the thickness, not only optical loss but also breakage of the optical waveguide may occur. Furthermore, when integrated with an electric wiring board, the thickness of 10-50 / ⁇ increases, and the flexibility is further deteriorated.
- Patent Document 1 Japanese Patent Laid-Open No. 04-9807
- Patent Document 2 Japanese Patent Laid-Open No. 2002-318318
- An object of the present invention is to provide an optical waveguide film that avoids the above problems, has a high optical coupling efficiency of the light input portion, and is excellent in flexibility.
- the first of the present invention is an optical waveguide film or an opto-electric hybrid film shown below.
- An optical waveguide film that includes a core made of a resin and a clad and has a light input portion, and has a portion where the film thickness is thinner than that of the light input portion.
- a second aspect of the present invention relates to an electronic device including the film.
- a third aspect of the present invention relates to a method for producing an optical waveguide film described below.
- a method for producing an optical waveguide film comprising: coating a solution of a core material or a clad material, or a precursor thereof; and removing a part of the coated solution.
- An optical waveguide film including a core and a clad made of resin and having a light input portion, wherein the film thickness is thinner than that of the light input portion, and a method for producing an optical waveguide film having portions ,
- a method for producing an optical waveguide film comprising: applying a solution of a core material or a clad material, or a precursor thereof using an applicator including an applicator head having a film thickness control unit.
- the optical waveguide film of the present invention has excellent flexibility at the thin portion because at least a part of the intermediate portion in the waveguide direction is thin. Therefore, by storing the optical waveguide film of the present invention in an electronic device with the thin portion bent, the space of the electronic device can be reduced, and the thickness and size can be reduced.
- the optical input part for example, film edge part
- bonding with another optical component becomes easy.
- the core thickness of the light input portion can be increased, the optical coupling efficiency can be increased.
- FIG. 1 is a diagram showing an example of an optical waveguide film of the present invention.
- the edge of the film is the light input portion
- the portion where the optical path changing mirror is formed is the light input portion.
- FIG. 2 is a view showing an example of an optical waveguide film of the present invention.
- FIG. 3 is a diagram showing an example of the production process of the optical waveguide film of the present invention.
- FIG. 4 is a view showing another production example of the optical waveguide film of the present invention.
- the optical waveguide film of the present invention includes a core and a clad, but may further have an arbitrary member. It is preferable that both the core and the clad have a resin material strength. This is to obtain the flexibility of the optical waveguide film.
- the resin material include polyimide resin (including fluorine-based polyimide resin), silicon-modified epoxy resin, silicon-modified acrylic resin, silicon-modified polynorbornene and the like.
- the optical waveguide film of the present invention is characterized in that it has a light input portion that is a portion to which light as a signal is input, and has a portion that is thinner than the light input portion.
- the light input portion of the optical waveguide film receives light that is optically coupled to other optical components and becomes a signal. This is the input part.
- the mode of the light input unit is not particularly limited.
- the light input unit may be a film end in the waveguide direction. If the thicknesses at both ends of the film in the waveguide direction are different from each other, it is preferable to use the larger thickness as the light input portion.
- the light input portion may be an intermediate portion instead of the film end portion in the waveguide direction.
- a path for entering light into the optical waveguide film and a path for extracting light are provided. For example, if a mirror is provided in the core of the film and a path for allowing light to penetrate is provided in the cladding layer.
- FIG. 1B An example of an opto-electric hybrid film including an optical waveguide film having an optical input portion as a film intermediate portion is shown in FIG. 1B. Near both ends of the optical waveguide film composed of the lower clad 1, the core 2, and the upper clad 3 are joined to the electric wiring board 7 by the adhesive layer 6. The core 2 at the center of the optical waveguide film is thinned, and the optical waveguide film itself is also thinned. The optical waveguide film has processed holes 8 and 8 'that serve as mirrors. In addition, an optical input part 4 and an optical output part 5 penetrating the electric wiring board 7, the adhesive layer 6 and the lower cladding 1 are formed.
- the light incident from the light input unit 4 is reflected by the machining hole 8 and travels through the core 2, and further reflected by the machining hole 8 ′ and emitted from the light output unit 5.
- the core thickness of the light input portion of the optical waveguide film is not particularly limited, but is preferably 100 to 150 m. This is to increase the optical coupling efficiency with other optical components.
- the film thickness of the light input section is generally the thickness accumulated over 30 m with respect to the core thickness. Since the optical input section needs to be optically coupled with other optical components, handling when connecting to a connector for coupling can be facilitated if the optical input section has a certain film thickness.
- the “thin portion” of the optical waveguide film may be near the center of the film in the waveguide direction as long as it is other than the light input portion, or may be a portion near the end of the film. Further, the thin portion may be present at one location or two or more locations on the optical waveguide film. As will be described later, the optical waveguide film of the present invention is preferably bent at the thin portion.
- the minimum film thickness of the thin portion is 10 to 8 of the film thickness of the light input portion. It is preferably about 0%.
- the minimum thickness of the thin portion is preferably 120 ⁇ m or less. This is to improve the flexibility at the thin portion.
- the core thickness of the thin portion is thinner than the core thickness of the light input portion.
- the core thickness of the thin part is usually 10 m or more. This is to suppress excessive light loss.
- the core thickness of the thin portion of the optical waveguide film of the present invention is smaller than the core thickness of the light input portion, but the inclination of the core is gentle. Is preferred! This is to reduce optical loss (optical leakage).
- the inclination angle (gradient) is not particularly limited, and may be set appropriately according to the range of allowable optical loss, for example, about 0.1 ° to 2 °.
- the length of the inclined core in the waveguide direction varies depending on the angle of inclination and the difference in core thickness between the light input portion and the thin portion.
- the optical waveguide film of the present invention has a thin portion, and in the thin portion, the core may be thinned, the clad may be thinned, or the core and the clad. Both are thinned! /, But!
- Fig. 1 shows that the thickness of the clad is almost constant throughout the film.
- the thickness of the core is thinned at a part of the film (in the waveguide direction and at the center). A cross section of the system is shown.
- the thickness of the core is almost constant over the entire film.
- the thickness of the clad is the cross section of the optical waveguide film that is thinned in a part of the film (the center in the waveguide direction). Indicated.
- the optical waveguide film shown in FIGS. 1 and 2 is a film in which a core 2 is integrated by being sandwiched between a lower cladding 1 and an upper cladding 3.
- an optical signal enters the optical waveguide from the optical input section 4 which is the end of the film, and exits from the light emitting section 5 through the optical waveguide.
- the film thickness dl of the light input section 4 is equal to or larger than the film thickness of the light output section 5.
- the film thickness d2 at the central portion in the longitudinal direction of the optical waveguide is made smaller than the film thickness dl of the light input portion 4, and the flexibility of the central portion is improved.
- the film thickness d2 in the central portion is preferably 10% to 80% of the film thickness dl in the light input portion, and more preferably, the film thickness d2 is 120 / zm or less.
- the optical waveguide film of the present invention may have grooves extending in the waveguide direction on the film surface.
- the core of the optical waveguide film may be in contact with the side end of the groove extending in the waveguide direction; it may be separated from the groove.
- the groove extending in the waveguide direction is preferably at least at a thin portion of the optical waveguide film, that is, at a bent portion.
- the film thickness at the bottom of the groove is not particularly limited, but is preferably half or less of the optical waveguide film thickness.
- the groove can further improve the flexibility.
- the opto-electric hybrid film of the present invention includes the above-described optical waveguide film and an electric wiring board bonded to one side or both sides of the optical waveguide film.
- the electrical wiring board
- the thin portion of the optical waveguide film is not joined.
- the electrical wiring board may be bonded only near the both ends of the optical waveguide film (see FIG. 1B). As described above, since the optical waveguide film can be bent at the thin portion, the flexibility is maintained.
- the opto-electric hybrid film is optically and electrically connected to other members using a connector or the like.
- a spring-like electrode is contacted and electrically connected to the exposed portion of the wiring portion of the opto-electric hybrid film from the upper surface or the back surface; And connect optically.
- the optical waveguide film or the opto-electric hybrid film of the present invention can be used for any application, but is suitable for a circuit that is bent in an electronic device such as a mobile phone.
- a circuit that is bent in an electronic device such as a mobile phone.
- two parts joined by hinges can be used as a circuit that joins across a hinge.
- the bent portion for example, the portion corresponding to the hinge
- it is preferable to arrange the bent portion to be the thin portion of the optical waveguide film.
- the optical waveguide film of the present invention is manufactured by an arbitrary method, and can be manufactured by applying the same method as that of a normal optical waveguide film except that a portion thinner than the light input portion is formed.
- the following two methods can be used to form thin spots.
- Method A A core material or a clad material, or a solution of a precursor thereof is coated; a thin portion is formed by removing a part of the coated solution.
- Method B Core material or cladding material, or a solution of its precursor A thin spot is formed by application using an applicator equipped with a precurator head.
- the precursor is polyamic acid or the like, and is converted into polyimide by heat treatment or the like.
- the cladding material or its precursor solution is coated on the substrate or core layer; the core material or its precursor solution is coated on the cladding layer.
- the viscosity of the solution to be applied is appropriately selected according to the production conditions, but is usually about 1 Pa's to several tens of Pa's. The viscosity of the solution can be measured using an E-type viscometer (cone-plate type rotary viscometer) at 25 ° C.
- the coated core material or a part of the precursor solution may be removed.
- the coated cladding material or a part of the solution may be removed.
- the amount of the solution to be coated may be appropriately determined according to the thickness of the core or clad to be formed.
- means for removing a part of the coated solution is not particularly limited.
- the removal film may be brought into contact with the coating film, and the removal film may be peeled off.
- the removal film to be contacted include PET film and the like.
- the width of the removal film may be determined according to the amount of the solution to be removed. For example, a removal film having a width of about 1.5 times the width of the optical waveguide film to be thinned may be used. Further, the step of removing a part of the solution may be performed once or twice or more.
- the coating film after removing a part of the solution, the coating film may be leveled (smoothed), for example, by leaving it for a certain period of time. As a result, a gentle inclination can be obtained, so that optical loss can be suppressed even if the core is inclined. Furthermore, it is preferable to perform heat treatment to remove the solvent of the coating film or to convert the precursor into a core material or a clad material.
- FIG. 3 shows an example of a process for producing an optical waveguide film by the A method.
- a polyamic acid solution which is a polyimide precursor serving as a cladding material, is applied to a substrate 11 such as a silicon wafer, and the formed coating film is heat-treated to form a lower cladding layer 12.
- a coating film 13 is formed by applying a polyamic acid solution as a core material (FIG. 3A). The thickness of the coating film 13 is appropriately adjusted according to the required core diameter.
- the belt-like film 14 is slowly brought into contact with the coat film 13 (FIG. 3B). Then the film 14 is slowly peeled off from the coating film 13 (FIG. 3C). A part 15 of the polyamic acid solution of the coating film 13 adheres to the peeled film 14. By leaving it as it is, the level of the polyamic acid solution in the coating film 13 is leveled, and a gentle depression 16 is formed when viewed in cross section (FIG. 3D).
- the film thickness distribution of the leveled coating film 13 depends on the viscosity of the solution, the concentration of the resin, and the standing time. After being left for a predetermined time, it is cured by heating. In this way, a core layer 13 ′ partially thinned is formed (FIG. 3E).
- a polyamic acid solution to be the upper clad layer 17 is applied and cured by caloric heat treatment to obtain a polyimide.
- the thickness of the upper clad layer 17 is reduced within a range where there is no optical leakage. For example, if the relative refractive index difference between the core layer 13 ′ and the upper cladding layer 17 is 1%, the thickness of the upper cladding layer 17 may be about 5 m.
- the laminated film formed by laminating the lower clad layer 12, the core layer 13 ′, and the upper clad layer 17 in this order is peeled off from the substrate 11 (FIG. 3F).
- two grooves are formed from the upper clad layer 17 side by mechanical processing such as dicing saw.
- This groove preferably cuts the cladding layer 17 and the core layer 13 ′ completely and further cuts partway through the lower cladding layer 12.
- the width of the core is defined by the two grooves, and the portion sandwiched between the two grooves is the core pattern.
- a desired optical waveguide film can be obtained by cutting out to a size necessary for handling and the like.
- the laminated film may be produced by laminating the lower clad layer 12, the core layer 13 ', and the upper clad layer 17 in this order; It is possible to produce a core film by forming a clad layer on both sides of the core film.
- the solution is applied by using an applicator having an applicator head having a film thickness control unit according to the method B.
- the type of applicator is not particularly limited and includes, for example, a die coater.
- the thickness of the coating film is controlled by a film thickness control unit provided in the head of the applicator.
- FIG. 4A shows a state in which the solution is applied to the application plate 22 using the applicator 21. Move the applicator 21 filled with the coating solution from the oil inlet 23 in the direction of the arrow. While applying the coating solution, apply the coating solution to the coating plate 22.
- the applicator head of the applicator 21 (portion for injecting the coating solution) has a film thickness controller 24 as shown in FIG. 4B.
- the shape and size of the film thickness control unit 24 may be appropriately determined according to a desired film shape, and a film having a thin portion is thereby formed. For example, by forming the film thickness control unit 24 into a smooth convex shape, a coating film having a thin portion can be formed.
- the coated film obtained by applying the solution with an applicator may be heated and cured in the same manner as in method A.
- the opto-electric hybrid film can be manufactured by the following process.
- a flexible electrical wiring board or a copper-clad laminate before copper patterning is bonded to one or both sides of a laminated film in which an upper clad layer, a core layer, and a lower clad layer are laminated in this order.
- an adhesive layer material for pasting thermoplastic polyimide or the like can be used. If the copper is not patterned, patterning of the wiring board is performed after bonding. Thereafter, a groove is formed by a mechanical cage such as dicing, and core patterning is performed. In this way, an opto-electric hybrid film can be manufactured.
- the viscosity of the polyamic acid solution for the core material was 7 Pa's.
- the viscosity was measured using an E-type viscometer (cone's plate type rotational viscometer) at 25 ° C.
- a polyamic acid solution for the cladding material is spin-coated on a 5-inch silicon wafer and coated.
- the lower cladding layer was formed by heat treating the film.
- the thickness of the formed lower cladding layer was 20 ⁇ m.
- the formed lower clad layer was spin-coated with a polyamic acid solution for a core material.
- the thickness of the coat film was 600 / z m.
- a PET film with a width of 15 mm was slowly placed on the coat film near the center of the wafer, and then peeled off from the edge.
- the wafer was allowed to stand for about 10 minutes and then heat-treated in an oven to form a core layer.
- the thickness (minimum thickness) of the core layer near the center was about 75 ⁇ m, and the thickness of the core layer 30 mm away from the center was about 140 ⁇ m.
- the core layer between them was continuously changing in thickness at an angle of about 0.2 degrees.
- a polyamic acid solution for a clad material was coated, and the coat film was heat-treated to form an upper clad layer having a thickness of 5 ⁇ m.
- the obtained laminated film was peeled off from the silicon wafer.
- Dicing tape was affixed to the lower clad layer of the peeled laminated film.
- Two straight grooves with a length of 100 mm were formed on the laminated film attached to the dicing tape from the upper clad layer side using a dicing saw.
- the formed groove cut the core layer, and a core pattern was formed between the two grooves.
- the core width was 100 ⁇ m.
- the film thickness (minimum thickness) near the center was about 100 ⁇ m, and the film thickness at the end serving as the light input / output portion was about 165 / z m.
- a region (width 3 mm; length 100 mm) including the formed two grooves was cut out from the obtained film to obtain an optical waveguide film.
- the obtained optical waveguide film was subjected to a bending test.
- the bending test was performed according to a folding test described in JIS C 5016. As a result of examining the number of bends until the optical waveguide was broken by bending a thin portion at the center of the optical waveguide film with a bending radius of 2 mm, it was 110,000 times.
- a polyamic acid solution for the cladding material is spin-coated on a 5-inch silicon wafer and coated.
- the lower cladding layer was formed by heat treating the film.
- the thickness of the formed lower cladding layer was 20 ⁇ m.
- the lower clad layer thus formed was spin-coated with a polyamic acid solution for a core material.
- the thickness of the coat film was 600 / z m.
- a PET film with a width of 15 mm was slowly placed on the coat film near the center of the wafer, and then peeled off from the edge.
- the wafer was left for about 10 minutes.
- the edge force was also removed.
- the thickness (minimum thickness) of the core layer near the center was about 30 m, and the thickness of the core layer 30 mm away from the center was about 140 m. Between them, the film thickness continuously changed at an angle of about 0.6 degrees.
- a polyamic acid solution for a clad material was coated, and the coat film was heat-treated to form an upper clad layer having a thickness of 5 ⁇ m.
- the obtained laminated film was peeled off from the silicon wafer.
- Dicing tape was affixed to the lower clad layer of the peeled laminated film.
- Two linear grooves with a length of 100 mm were formed on the laminated film affixed to the dicing tape using a dicing saw for the upper clad layer side force.
- the formed groove cut the core layer, and a core pattern was formed between the two grooves.
- the core width was 100 ⁇ m.
- the film thickness (minimum thickness) near the center was about 55 ⁇ m, and the film thickness at the edge serving as the light input / output portion was about 165 / z m. From the obtained film, a region (width 3 mm, length 100 mm) including the two formed grooves was cut out to obtain an optical waveguide film.
- the obtained optical waveguide film was subjected to a bending test.
- the bending test was performed according to a folding test described in JIS C 5016. As a result of examining the number of bends until the optical waveguide was broken by bending a thin portion at the center of the optical waveguide film with a bending radius of 2 mm, it was 240,000 times.
- a polyamic acid solution for a clad material was spin-coated on a 5-inch silicon wafer, and the coat film was heat-treated to form a lower clad layer.
- the thickness of the formed lower cladding layer was 20 ⁇ m.
- the formed lower clad layer was spin-coated with a polyamic acid solution for a core material.
- the thickness of the coat film was 600 ⁇ m.
- the coated film was heat-treated in an oven to form a core layer having a thickness of about 140 ⁇ m.
- a polyamic acid solution for a clad material was coated, and the coated film was heat-treated to form an upper clad layer having a thickness of 5 ⁇ m.
- the obtained laminated film was peeled off from the silicon wafer.
- Dicing tape was affixed to the lower clad layer of the peeled laminated film.
- Two linear grooves with a length of 100 mm were formed on the laminated film affixed to the dicing tape using a dicing saw for the upper clad layer side force.
- the formed groove cut the core layer, and a core pattern was formed between the two grooves.
- the core width was 100 ⁇ m.
- the film thickness was almost uniform and was about 173 ⁇ m.
- a region (width 3 mm, length 100 mm) including two grooves was cut out from the obtained film to obtain an optical waveguide film.
- the obtained optical waveguide film was subjected to a bending test.
- the bending test was performed according to a folding test described in JIS C 5016.
- the number of bending until the optical waveguide was broken was examined by bending at a bending radius of 2 mm. As a result, it broke after 10,000 times.
- the optical waveguide film of the present invention can be used by being housed in an electronic device that requires optical wiring. In particular, it can be used by being bent in a narrow space or wound around a hinge.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Optical Integrated Circuits (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2006800313955A CN101253433B (zh) | 2005-08-29 | 2006-08-24 | 光波导膜及其制造方法、包含它的光电混载膜及电子设备 |
US11/991,284 US20090263073A1 (en) | 2005-08-29 | 2006-08-24 | Optical waveguide film, method for manufacturing thereof, electrical and optical hybrid circuit film including the waveguide film, and electronic device including thereof |
EP06783006A EP1921473A4 (en) | 2005-08-29 | 2006-08-24 | OPTICAL WAVE CONDUCTIVE FILM AND METHOD FOR MANUFACTURING THE SAME, HYBRID OPTOELECTRIC FILM INCLUDING THE WAVE CONDUCTING FILM, AND ELECTRONIC DEVICE |
JP2007533206A JP4679582B2 (ja) | 2005-08-29 | 2006-08-24 | 光導波路フィルムとその製造方法、それを含む光電気混載フィルムおよび電子機器 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005-248253 | 2005-08-29 | ||
JP2005248253 | 2005-08-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2007026601A1 true WO2007026601A1 (ja) | 2007-03-08 |
Family
ID=37808695
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2006/316652 WO2007026601A1 (ja) | 2005-08-29 | 2006-08-24 | 光導波路フィルムとその製造方法、それを含む光電気混載フィルムおよび電子機器 |
Country Status (7)
Country | Link |
---|---|
US (1) | US20090263073A1 (ja) |
EP (1) | EP1921473A4 (ja) |
JP (1) | JP4679582B2 (ja) |
KR (1) | KR100926395B1 (ja) |
CN (1) | CN101253433B (ja) |
TW (1) | TWI319492B (ja) |
WO (1) | WO2007026601A1 (ja) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009096067A1 (ja) * | 2008-02-01 | 2009-08-06 | Hitachi Chemical Company, Ltd. | 光電気混載基板及び電子機器 |
WO2010087378A1 (ja) * | 2009-01-28 | 2010-08-05 | 日立化成工業株式会社 | 光導波路の製造方法、光導波路及び光電気複合配線板 |
JP2010175742A (ja) * | 2009-01-28 | 2010-08-12 | Hitachi Chem Co Ltd | フレキシブル光導波路及びその製造方法 |
JP2010175741A (ja) * | 2009-01-28 | 2010-08-12 | Hitachi Chem Co Ltd | フレキシブル光導波路の製造方法 |
JP2010271371A (ja) * | 2009-05-19 | 2010-12-02 | Hitachi Chem Co Ltd | フレキシブル光導波路 |
JP2010282088A (ja) * | 2009-06-05 | 2010-12-16 | Hitachi Chem Co Ltd | 光導波路形成用樹脂フィルム及びこれを用いた光導波路、その製造方法並びに光電気複合配線板 |
JP2011017993A (ja) * | 2009-07-10 | 2011-01-27 | Hitachi Chem Co Ltd | 光導波路及び光電気複合配線板 |
JP2011053483A (ja) * | 2009-09-02 | 2011-03-17 | Sumitomo Bakelite Co Ltd | 光導波路用フィルムの製造方法、光導波路用フィルム、光導波路、光電気混載基板および電子機器 |
JP2011053484A (ja) * | 2009-09-02 | 2011-03-17 | Sumitomo Bakelite Co Ltd | 光導波路用フィルムの製造方法、光導波路用フィルム、光導波路、光電気混載基板および電子機器 |
US8891921B2 (en) | 2010-11-22 | 2014-11-18 | Hitachi Chemical Company, Ltd. | Optical waveguide |
US11353399B2 (en) | 2017-03-30 | 2022-06-07 | Asahi Kasel Microdevices Corporation | Optical waveguide, optical concentration measuring device, and method for manufacturing optical waveguide |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010204324A (ja) * | 2009-03-03 | 2010-09-16 | Fuji Xerox Co Ltd | 光導波路、光伝送装置および電子機器 |
WO2014188552A1 (ja) * | 2013-05-23 | 2014-11-27 | 富士通株式会社 | 光半導体集積素子及びその製造方法 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6354106U (ja) * | 1986-09-29 | 1988-04-12 | ||
JPH06111358A (ja) * | 1992-09-29 | 1994-04-22 | Ricoh Co Ltd | 光導波路素子 |
JPH06222230A (ja) * | 1993-01-26 | 1994-08-12 | Nippon Telegr & Teleph Corp <Ntt> | フレキシブル電気・光配線回路モジュールとその製造方法 |
JPH08304650A (ja) * | 1995-04-28 | 1996-11-22 | Nippon Telegr & Teleph Corp <Ntt> | 高分子光導波路フィルムとその製造方法 |
JPH11352344A (ja) * | 1998-06-09 | 1999-12-24 | Nippon Telegr & Teleph Corp <Ntt> | 低クロストーク光配線 |
JP2003098396A (ja) * | 2001-09-21 | 2003-04-03 | Konica Corp | 光実装基板の製造方法および光伝送体の製造方法 |
JP2004118117A (ja) * | 2002-09-27 | 2004-04-15 | Toshiba Corp | 光導波路アレイフィルム |
JP2004302347A (ja) * | 2003-04-01 | 2004-10-28 | Aica Kogyo Co Ltd | 光電気プリント配線板とその製造方法 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5138687A (en) * | 1989-09-26 | 1992-08-11 | Omron Corporation | Rib optical waveguide and method of manufacturing the same |
CA2041133C (en) * | 1990-04-27 | 1995-01-03 | Toru Matsuura | Polymide optical waveguide |
JPH07333450A (ja) * | 1994-06-08 | 1995-12-22 | Hoechst Japan Ltd | 光結合用導波路の形成方法及び光結合用導波路を有する光導波路素子 |
US6483969B1 (en) * | 1999-12-01 | 2002-11-19 | The United States Of America As Represented By The Secretary Of The Army | Apparatus, assembly, and method for making micro-fixtured lensed assembly for optoelectronic devices and optical fibers |
US6317445B1 (en) * | 2000-04-11 | 2001-11-13 | The Board Of Trustees Of The University Of Illinois | Flared and tapered rib waveguide semiconductor laser and method for making same |
US6603915B2 (en) * | 2001-02-05 | 2003-08-05 | Fujitsu Limited | Interposer and method for producing a light-guiding structure |
JP3937439B2 (ja) * | 2001-12-26 | 2007-06-27 | 日立化成工業株式会社 | 光導波路デバイスの製造方法及び光導波路デバイス |
US7324723B2 (en) * | 2003-10-06 | 2008-01-29 | Mitsui Chemicals, Inc. | Optical waveguide having specular surface formed by laser beam machining |
JP4659422B2 (ja) * | 2003-10-06 | 2011-03-30 | 三井化学株式会社 | 光導波路の製造方法 |
JP2005156882A (ja) | 2003-11-25 | 2005-06-16 | Kyocera Corp | ポリマ光導波路フィルム |
US6996303B2 (en) * | 2004-03-12 | 2006-02-07 | Fujitsu Limited | Flexible optical waveguides for backplane optical interconnections |
-
2006
- 2006-08-24 US US11/991,284 patent/US20090263073A1/en not_active Abandoned
- 2006-08-24 WO PCT/JP2006/316652 patent/WO2007026601A1/ja active Application Filing
- 2006-08-24 EP EP06783006A patent/EP1921473A4/en not_active Withdrawn
- 2006-08-24 KR KR1020077030368A patent/KR100926395B1/ko not_active IP Right Cessation
- 2006-08-24 JP JP2007533206A patent/JP4679582B2/ja not_active Expired - Fee Related
- 2006-08-24 CN CN2006800313955A patent/CN101253433B/zh not_active Expired - Fee Related
- 2006-08-29 TW TW095131716A patent/TWI319492B/zh not_active IP Right Cessation
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6354106U (ja) * | 1986-09-29 | 1988-04-12 | ||
JPH06111358A (ja) * | 1992-09-29 | 1994-04-22 | Ricoh Co Ltd | 光導波路素子 |
JPH06222230A (ja) * | 1993-01-26 | 1994-08-12 | Nippon Telegr & Teleph Corp <Ntt> | フレキシブル電気・光配線回路モジュールとその製造方法 |
JPH08304650A (ja) * | 1995-04-28 | 1996-11-22 | Nippon Telegr & Teleph Corp <Ntt> | 高分子光導波路フィルムとその製造方法 |
JPH11352344A (ja) * | 1998-06-09 | 1999-12-24 | Nippon Telegr & Teleph Corp <Ntt> | 低クロストーク光配線 |
JP2003098396A (ja) * | 2001-09-21 | 2003-04-03 | Konica Corp | 光実装基板の製造方法および光伝送体の製造方法 |
JP2004118117A (ja) * | 2002-09-27 | 2004-04-15 | Toshiba Corp | 光導波路アレイフィルム |
JP2004302347A (ja) * | 2003-04-01 | 2004-10-28 | Aica Kogyo Co Ltd | 光電気プリント配線板とその製造方法 |
Non-Patent Citations (3)
Title |
---|
"Print Haisenban Level Hikari Densoyo Polyimide Hikari Doharo Film", POLYFILE, 2004 NEN 11 GATSUGO, 10 November 2004 (2004-11-10), pages 44 - 46, XP003009900 * |
See also references of EP1921473A4 * |
SHIOTA T. AND YAMADA K.: "Kokukkyoku Polyimide Hikari Doharo Film", 2005 NEN IEICE ELECTRONICS SOCIETY TAIKAI KOEN RONBUNSHU 1, 7 September 2005 (2005-09-07), pages 198, XP003010001 * |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009096067A1 (ja) * | 2008-02-01 | 2009-08-06 | Hitachi Chemical Company, Ltd. | 光電気混載基板及び電子機器 |
WO2010087378A1 (ja) * | 2009-01-28 | 2010-08-05 | 日立化成工業株式会社 | 光導波路の製造方法、光導波路及び光電気複合配線板 |
JP2010175742A (ja) * | 2009-01-28 | 2010-08-12 | Hitachi Chem Co Ltd | フレキシブル光導波路及びその製造方法 |
JP2010175741A (ja) * | 2009-01-28 | 2010-08-12 | Hitachi Chem Co Ltd | フレキシブル光導波路の製造方法 |
KR20110110248A (ko) | 2009-01-28 | 2011-10-06 | 히다치 가세고교 가부시끼가이샤 | 광도파로의 제조방법, 광도파로 및 광전기 복합배선판 |
JP2010271371A (ja) * | 2009-05-19 | 2010-12-02 | Hitachi Chem Co Ltd | フレキシブル光導波路 |
JP2010282088A (ja) * | 2009-06-05 | 2010-12-16 | Hitachi Chem Co Ltd | 光導波路形成用樹脂フィルム及びこれを用いた光導波路、その製造方法並びに光電気複合配線板 |
JP2011017993A (ja) * | 2009-07-10 | 2011-01-27 | Hitachi Chem Co Ltd | 光導波路及び光電気複合配線板 |
JP2011053483A (ja) * | 2009-09-02 | 2011-03-17 | Sumitomo Bakelite Co Ltd | 光導波路用フィルムの製造方法、光導波路用フィルム、光導波路、光電気混載基板および電子機器 |
JP2011053484A (ja) * | 2009-09-02 | 2011-03-17 | Sumitomo Bakelite Co Ltd | 光導波路用フィルムの製造方法、光導波路用フィルム、光導波路、光電気混載基板および電子機器 |
US8891921B2 (en) | 2010-11-22 | 2014-11-18 | Hitachi Chemical Company, Ltd. | Optical waveguide |
US11353399B2 (en) | 2017-03-30 | 2022-06-07 | Asahi Kasel Microdevices Corporation | Optical waveguide, optical concentration measuring device, and method for manufacturing optical waveguide |
Also Published As
Publication number | Publication date |
---|---|
JP4679582B2 (ja) | 2011-04-27 |
TW200712582A (en) | 2007-04-01 |
JPWO2007026601A1 (ja) | 2009-03-05 |
KR20080021062A (ko) | 2008-03-06 |
CN101253433B (zh) | 2012-10-10 |
EP1921473A4 (en) | 2010-10-13 |
KR100926395B1 (ko) | 2009-11-11 |
TWI319492B (en) | 2010-01-11 |
US20090263073A1 (en) | 2009-10-22 |
EP1921473A1 (en) | 2008-05-14 |
CN101253433A (zh) | 2008-08-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4679582B2 (ja) | 光導波路フィルムとその製造方法、それを含む光電気混載フィルムおよび電子機器 | |
JP4679580B2 (ja) | 光導波路フィルムおよび光電気混載フィルム | |
JP4418508B2 (ja) | 光電気混載フィルムおよびそれを収納した電子機器 | |
US6229949B1 (en) | Polymer optical waveguide, optical integrated circuit, optical module and optical communication apparatus | |
US6996303B2 (en) | Flexible optical waveguides for backplane optical interconnections | |
US9008480B2 (en) | Method of manufacturing optical waveguide core, method of manufacturing optical waveguide, optical waveguide, and optoelectric composite wiring board | |
US6999643B2 (en) | Method of manufacturing optical waveguide and method of manufacturing opto-electric wiring board | |
JP2005275405A (ja) | 光回路板部品を接続する光学的構造及び方法 | |
JP2006284925A (ja) | フレキシブル光電気混載基板およびこれを用いた電子機器 | |
JP4655091B2 (ja) | 導波路フィルムケーブル | |
JP2006184773A (ja) | 光導波路およびこれを備えた光電気混載基板 | |
JP4962265B2 (ja) | 光導波路製造方法 | |
JP2008262244A (ja) | フレキシブル光電気混載基板およびこれを用いた電子機器 | |
JP4469289B2 (ja) | 光路変換ミラーの製法 | |
JP4703441B2 (ja) | 光導波路素子および光電気混載素子 | |
JP2006091500A (ja) | 光導波路が嵌め込まれた光導波路基板および光電気混載基板 | |
JP2009103804A (ja) | 光導波路及びその製造方法 | |
JP2006284926A (ja) | 光導波路を備えた電子機器 | |
JP3798379B2 (ja) | 光モジュール、及びその製造方法 | |
JP2005099501A (ja) | 光導波路同士接合した光導波路 | |
JP2005331974A5 (ja) |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 200680031395.5 Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 1020077030368 Country of ref document: KR |
|
ENP | Entry into the national phase |
Ref document number: 2007533206 Country of ref document: JP Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2006783006 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 11991284 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |