WO2014196252A1 - 光電気混載基板 - Google Patents
光電気混載基板 Download PDFInfo
- Publication number
- WO2014196252A1 WO2014196252A1 PCT/JP2014/059399 JP2014059399W WO2014196252A1 WO 2014196252 A1 WO2014196252 A1 WO 2014196252A1 JP 2014059399 W JP2014059399 W JP 2014059399W WO 2014196252 A1 WO2014196252 A1 WO 2014196252A1
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- WIPO (PCT)
- Prior art keywords
- circuit board
- layer
- opto
- electric
- metal reinforcing
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Classifications
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- 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
- G02B6/12002—Three-dimensional structures
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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
- H05K1/0201—Thermal arrangements, e.g. for cooling, heating or preventing overheating
- H05K1/0203—Cooling of mounted components
-
- 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
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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
- H05K1/0274—Optical details, e.g. printed circuits comprising integral optical means
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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
- H05K1/0277—Bendability or stretchability details
- H05K1/028—Bending or folding regions of flexible printed circuits
-
- 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
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10007—Types of components
- H05K2201/10121—Optical component, e.g. opto-electronic component
Definitions
- the present invention relates to an opto-electric hybrid board in which a flexible circuit board and an optical waveguide are laminated, and an element such as an optical element or an IC chip is mounted on the flexible circuit board.
- an opto-electric hybrid board as shown in FIG. 7 has been proposed (see, for example, Patent Document 1).
- This is laminated on the flexible circuit board E1 in which the electric wiring 52 is formed on the surface of the insulating layer 51 made of polyimide or the like, and the back surface of the insulating layer 51 (the surface opposite to the surface on which the electric wiring 52 is formed).
- an optical element 5 mounted on an optical waveguide (optical wiring) W1 (undercladding layer 56, core 57, overcladding layer 58) made of epoxy resin or the like and a predetermined portion (mounting pad 52a) of the electric wiring 52. It is made up of.
- This opto-electric hybrid board is flexible in both the flexible circuit board E1 and the optical waveguide W1, and can be used in a state where it is bent in a small space in response to the recent downsizing of electronic devices, etc. It is suitable for use in a section.
- the flexible circuit board E1 and the optical waveguide W1 are flexible, when the optical element 5 is mounted on the electric wiring 52 of the flexible circuit board E1, the flexible circuit board E1 is also caused by a pressing load applied during the mounting. The optical waveguide W1 is also deformed. For this reason, it is difficult to mount accurately, which may result in poor mounting.
- the inventors of the present invention provide a portion corresponding to the mounting portion (mounting pad 52a) of the optical element 5 in the back surface (the surface on which the optical waveguide W1 is formed) of the insulating layer 51 of the flexible circuit board E1.
- the idea was to provide a metal reinforcing layer directly. That is, the metal reinforcing layer suppresses deformation due to a pressing load when the optical element 5 is mounted.
- the metal reinforcing layer cannot follow the bending, A crack occurs in the metal reinforcing layer, and the insulating layer 51 is peeled off from the cracked portion. Therefore, if an adhesive layer is provided between the insulating layer 51 and the metal reinforcing layer, the adhesive layer is too soft and the mounting failure of the optical element 5 occurs.
- the followability at the time of bending is excellent and the adhesiveness with the insulating layer 51 is excellent, but sufficient rigidity against the pressing load at the time of mounting. I don't have it.
- the present invention has been made in view of such circumstances, and a metal reinforcing layer is in close contact with the insulating layer of the flexible circuit board without an adhesive layer, and the metal reinforcing layer allows the device to be mounted at the time of element mounting.
- An object of the present invention is to provide an opto-electric hybrid board on which elements are appropriately mounted in a state where deformation due to a pressing load is suppressed.
- the opto-electric hybrid board according to the present invention includes a flexible circuit board in which an electrical wiring having a mounting pad is formed on the surface of an insulating layer, an element mounted on the mounting pad, An opto-electric hybrid board comprising an optical waveguide laminated on the back side of the insulating layer, wherein the flexible circuit board is a flexible double-sided circuit board in which electrical wiring is also formed on the back side of the insulating layer; A configuration in which a metal reinforcing layer is plated on at least a portion corresponding to the mounting pad in the electrical wiring on the back side, and the optical waveguide is in contact with the metal reinforcing layer. Take.
- the opto-electric hybrid board according to the present invention uses a flexible double-sided circuit board in which electrical wiring is also formed on the back surface of the insulating layer as the flexible circuit board.
- the insulating layer and the electrical wiring on the front and back surfaces are originally in close contact with each other. Therefore, even if it bends, an insulating layer and the electrical wiring of front and back will not peel.
- a metal reinforcing layer is plated on at least a portion corresponding to the mounting pad on the front surface side of the electrical wiring on the back surface side.
- both the electrical wiring and the metal reinforcing layer are metal, the familiarity is high and the metal reinforcing layer is formed by plating on the electrical wiring.
- the metal reinforcing layer are in close contact with each other. That is, the metal reinforcing layer is firmly adhered to the insulating layer of the flexible double-sided circuit board through the electric wiring on the back surface side without using the adhesive layer. And although the electrical wiring is soft enough to have flexibility, it has higher rigidity than the adhesive layer. Therefore, deformation due to a pressing load when an element is mounted on the mounting pad on the front surface side can be suppressed by the electric wiring on the back surface side and the metal reinforcing layer. As a result, there is no mounting defect of the element, and the element can be mounted properly. Further, as described above, the metal reinforcing layer is plated and firmly adhered to the electric wiring on the back surface side. Therefore, even if bent, the metal reinforcing layer does not peel from the electric wiring on the back surface side.
- the opto-electric hybrid board according to the present invention uses a flexible double-sided circuit board in which electrical wiring is also formed on the back surface of the insulating layer as the flexible circuit board, a metal reinforcing layer is formed on the back side electrical wiring by plating. can do. Thereby, the metal reinforcing layer is firmly adhered to the insulating layer of the flexible double-sided circuit board through the electric wiring on the back surface side. Therefore, in the opto-electric hybrid board according to the present invention, deformation due to a pressing load when an element is mounted on the mounting pad is suppressed by the electric wiring on the back side and the metal reinforcing layer.
- the opto-electric hybrid board according to the present invention has no defective mounting of the elements, and the elements are properly mounted. Furthermore, since the opto-electric hybrid board according to the present invention has the metal reinforcing layer plated and firmly adhered to the electric wiring on the back side as described above, the metal reinforcing layer is on the back side even if bent. It does not peel from the electrical wiring.
- the electrical wiring on the back side is in the range of 5 to 15 ⁇ m in thickness and the metal reinforcing layer is in the range of elastic modulus of 152 GPa or more and in the range of 1 to 20 ⁇ m, when the element is mounted The deformation due to the pressing load is suppressed, and the flexibility is excellent.
- the electrical wiring on the back surface side should be the ground wiring of the electrical wiring on the front surface side. Can do. Further, the heat generated from the element can be transferred to the electrical wiring on the back surface side through the electrical wiring on the front surface side to be dissipated.
- FIG. It is a longitudinal cross-sectional view of the principal part which shows typically other embodiment of the opto-electric hybrid board
- FIG. 1 is a longitudinal sectional view in the vicinity of a mounting pad (main part) schematically showing an embodiment of the opto-electric hybrid board according to the present invention.
- the opto-electric hybrid board of this embodiment uses a flexible double-sided circuit board E in which electric wirings 2A and 2B are formed on the front and back surfaces of a flexible insulating layer 1 as an electric circuit board.
- a mounting pad 2a for mounting an element such as the optical element 5 or an IC chip is formed in a predetermined portion of the electric wiring 2A on the front surface side.
- the metal reinforcing layer M is formed by plating on the electrical wiring 2B on the back surface side and the mounting pad 2a.
- the optical waveguide W is formed in a state where the underclad layer 6 is in contact with the electrical wiring 2B on the back side of the flexible double-sided circuit board E.
- the flexible double-sided circuit board E in which the electric wirings 2A and 2B are formed on both sides is used as the electric circuit board of the opto-electric hybrid board, and the mounting pad 2a on at least the front side of the electric wiring 2B on the back side.
- the metal reinforcing layer M is formed by plating on the portion corresponding to.
- the insulating layer 1 and the electrical wirings 2A and 2B on the front and back surfaces are originally in close contact with each other. Furthermore, since the metal reinforcement layer M is formed on the electrical wiring 2B on the back surface by plating, the electrical wiring 2B on the back surface side and the metal reinforcement layer M are firmly adhered. From these facts, the opto-electric hybrid board is such that the metal reinforcing layer M is firmly adhered to the insulating layer 1 of the flexible double-sided circuit board E via the back side electric wiring 2B. Deformation due to a pressing load when an element such as the optical element 5 is mounted on the mounting pad 2a is suppressed by the metal reinforcing layer M.
- the metal reinforcing layer M is plated and firmly adhered to the electric wiring 2B on the back surface side as described above, the metal reinforcing layer M remains on the back surface even when bent. It does not peel from the side electrical wiring 2B.
- the electrical wirings 2A and 2B are formed on the front and back surfaces of the insulating layer 1 having flexibility.
- the thickness of the insulating layer 1 is preferably set in the range of 3 to 40 ⁇ m, more preferably in the range of 5 to 25 ⁇ m, for example, from the viewpoint of flexibility and strength. This is because if the thickness of the insulating layer 1 is too thin, the strength tends to be small, and if it is too thick, the flexibility tends to be poor.
- the thickness of the electric wirings 2A and 2B is preferably set in the range of 5 to 15 ⁇ m, more preferably in the range of 5 to 10 ⁇ m, for example, from the viewpoint of flexibility, strength, electrical conductivity, and the like. . This is because if the thickness of the electrical wirings 2A and 2B is too thin, the wire is likely to be disconnected or deteriorated in electrical conductivity, and if it is too thick, the flexibility tends to be poor.
- the electrical wiring 2A on the front surface side and the electrical wiring 2B on the back surface side are connected by via-hole plating 2C. Therefore, the electrical wiring 2B on the back side can be used as the ground wiring of the electrical wiring 2A on the front side. Further, the heat generated by the element such as the optical element 5 can be transferred to the electric wiring 2B on the back surface side through the electric wiring 2A on the front surface side and dissipated.
- a through hole 1a for an optical path is formed in a portion of the insulating layer 1 corresponding to the central portion of the optical element 5 to be mounted. Further, the portion of the electrical wiring 2 ⁇ / b> A on the surface side excluding the mounting pad 2 a is covered with the cover lay 3. Furthermore, in this embodiment, a gold plating layer 4 for improving electrical conductivity is formed on the surface of the metal reinforcing layer M formed on the mounting pad 2a.
- the metal reinforcing layer M preferably has an elastic modulus of 152 GPa or more from the viewpoint of requiring rigidity.
- a metal material include nickel, cobalt, chromium, molybdenum, iron, manganese, platinum, tantalum, tungsten, and the like. Among these, nickel, cobalt, and chromium are preferable from the viewpoint of easy formation.
- the thickness of the metal reinforcing layer M is preferably set in the range of 1 to 20 ⁇ m, more preferably in the range of 3 to 20 ⁇ m, and still more preferably from the viewpoints of flexibility and strength. It is in the range of 5 to 20 ⁇ m. This is because if the thickness of the metal reinforcing layer M is too thin, the strength tends to decrease, and if it is too thick, the flexibility tends to be inferior.
- the optical waveguide W is formed in a state where the core 7 is sandwiched between the under-cladding layer 6 and the over-cladding layer 8, and the under-cladding layer 6 is a metal reinforcement formed on the electric wiring 2B on the back surface side. It is laminated on the back side of the flexible double-sided circuit board E in contact with the back side of the insulating layer 1 on which the layer M and the backside electrical wiring 2B are not formed.
- reference numeral 5 a denotes an electrode of an element such as the optical element 5.
- the opto-electric hybrid board can be manufactured, for example, as follows.
- a via hole 1b is formed.
- the copper plating layer 22 is formed on the copper foil 21 until the thickness of the electric wirings 2A and 2B (see FIG. 2 (c)) is obtained by electrolytic plating.
- a via hole plating 2C is formed in the via hole 1b.
- the laminate of the copper foil 21 and the copper plating layer 22 is patterned on the electric wiring 2A (including the mounting pad 2a) and the electric wiring 2B.
- the portions of the laminate that are to be the electric wirings 2A and 2B are covered with a resist, the portion of the laminate that is not covered with the resist is removed by etching, and then the resist is peeled off. Is made by
- the surface side electric wiring 2 ⁇ / b> A excluding the mounting pad 2 a is covered with a cover lay 3.
- the cover lay 3 is formed by, for example, a photolithography method using a photosensitive insulating resin as a cover lay forming material.
- the copper foil 21 and the copper plating layer 22 shown in FIG. 2C are not shown, and the electrical wiring 2A (including the mounting pad 2a) made of them, The wiring 2B is illustrated.
- the metal reinforcement layer M is formed by the electroplating process on the electrical wiring 2B and the mounting pad 2a of the back side which are the exposed metal.
- the metal reinforcing layer M is preferably nickel, cobalt, or chromium as the metal material, and the thickness is preferably in the range of 1 to 20 ⁇ m.
- a gold plating layer 4 is formed on the surface of the metal reinforcing layer M formed on the mounting pad 2a by electrolytic plating.
- the thickness of the gold plating layer 4 is set within a range of 0.05 to 2 ⁇ m, for example.
- the electrical wiring 2B on the back surface, which is an exposed metal is covered with a resist or the like so that the gold plating layer 4 is not formed on that portion.
- the flexible double-sided circuit board E in which the metal reinforcing layer M is formed is produced.
- the under cladding layer 6 is formed on the back side of the flexible double-sided circuit board E in contact with the metal reinforcing layer M that covers the electrical wiring 2B on the back side.
- a material for forming the under cladding layer 6 include a photosensitive resin and a thermosetting resin, and the under cladding layer 6 can be formed by a manufacturing method corresponding to the forming material.
- the thickness of the under cladding layer 6 is set within a range of 1 to 50 ⁇ m, for example.
- the core 7 is formed in a linear shape on the lower surface of the under cladding layer 6 in a protruding state.
- the core 7 is formed by, for example, a photolithography method using a photosensitive resin as a forming material.
- the dimensions of the core 7 are set, for example, within a range of 5 to 60 ⁇ m in height and width.
- an over clad layer 8 is formed on the lower surface of the under clad layer 6 so as to cover the core 7.
- the material for forming the over clad layer 8 include a photosensitive resin and a thermosetting resin, and the over clad layer 8 can be formed by a manufacturing method corresponding to the material for forming the over clad layer 8.
- the thickness of the over clad layer 8 is set in the range of 3 to 50 ⁇ m, for example. In this way, the optical waveguide W is manufactured in a state of being laminated on the back side of the flexible double-sided circuit board E.
- a predetermined portion of the core 7 is cut from the lower surface side of the overcladding layer 8 by a cutting blade or laser processing, and light reflection inclined by 45 ° with respect to the axis of the core 7 is performed.
- Surface 7a is formed.
- an element such as the optical element 5 is mounted on the mounting pad 2a.
- a pressing load due to mounting is applied to the flexible double-sided circuit board E and the optical waveguide W, but the deformation of the flexible double-sided circuit board E and the optical waveguide W due to the pressing load can be suppressed by the metal reinforcing layer M. . Therefore, there is no defective mounting of the element, and the element is mounted properly. In this way, an opto-electric hybrid board is obtained.
- FIG. 6 is a longitudinal sectional view in the vicinity of the mounting pad (principal part) schematically showing another embodiment of the opto-electric hybrid board according to the present invention.
- the metal reinforcing layer M is formed only in the portion corresponding to the mounting pad 2a on the front surface side of the electrical wiring 2B on the back surface side.
- Such partial formation of the metal reinforcing layer M is performed when the portions of the electric wirings 2A and 2B not forming the metal reinforcing layer M are formed when the metal reinforcing layer M is formed (see FIG. 3B). This is done by performing an electrolytic plating process in a state of being covered with a resist or the like.
- Other parts are the same as those in the embodiment shown in FIG. 1, and the same reference numerals are given to the same parts.
- the formation area of the metal reinforcing layer M is small. Therefore, although the opto-electric hybrid board is slightly inferior in rigidity, the optical element 5 or the like For mounting, since the metal reinforcing layer M is formed at an appropriate portion, deformation due to the pressing load at the time of mounting the element is sufficiently suppressed. And there is no mounting defect of an element and the element is mounted appropriately.
- the electrical wiring 2A on the front surface side and the electrical wiring 2B on the back surface side are connected by via hole plating 2C.
- the electrical wirings 2A and 2B on the front and back surfaces may not be connected depending on circumstances. Good.
- the gold plating layer 4 is formed on the mounting pad 2a.
- the gold plating layer 4 may not be formed depending on circumstances.
- the portion of the electrical wiring 2B on the back surface side where the metal reinforcing layer M is not formed may be covered with a coverlay.
- This coverlay is formed prior to the formation of the undercladding layer 6 after the metal reinforcing layer M is formed.
- the over clad layer 8 may be covered with a cover layer such as a coverlay.
- the through hole 1a for the optical path is formed in the insulating layer 1.
- the through hole 1a for the optical path is not formed. May be.
- the opto-electric hybrid board of the embodiment shown in FIG. 6 was produced.
- the thickness of the polyimide insulating layer is 5 ⁇ m
- the thickness of the copper electrical wiring on the front and back surfaces is 10 ⁇ m
- the thickness of the metal reinforcing layer made of nickel plating is 3 ⁇ m
- the thickness of the under cladding layer is 15 ⁇ m
- the thickness of the core is 50 ⁇ m.
- the core width was 50 ⁇ m
- the overcladding layer thickness (thickness from the core) was 15 ⁇ m.
- the elastic modulus of the metal reinforcing layer made of nickel plating was 177 GPa. This elastic modulus was measured using an elastic modulus measuring machine (MMT-X7, manufactured by Matsuzawa).
- the materials for forming the under clad layer and the over clad layer are 50 parts by weight of an aliphatic-modified epoxy resin (DIC Corporation, EPICLONEXA-4816), an alicyclic bifunctional epoxy resin (manufactured by Daicel Corporation, Seyloxide 2021P) 30.
- an aliphatic-modified epoxy resin (DIC Corporation, EPICLONEXA-4816)
- an alicyclic bifunctional epoxy resin manufactured by Daicel Corporation, Seyloxide 2021P
- 20 parts by weight of polycarbonate diol manufactured by Daicel, Plaxel CD205PL
- 2 parts by weight of photoacid generator manufactured by Adeka, SP170
- 5 parts by weight of ethyl lactate manufactured by Musashino Chemical Laboratory
- the core is made of 50 parts by weight of o-cresol novolak glycidyl ether (manufactured by Nippon Steel & Sumikin Chemical Co., Ltd., YDCN-700-10), 50 parts by weight of bisphenoxyethanol full orange glycidyl ether (manufactured by Osaka Gas Chemical Co., Ltd., OGSOL EG). Part by weight, 1 part by weight of a photoacid generator (manufactured by Adeka, SP170) and 50 parts by weight of ethyl lactate (manufactured by Musashino Chemical Laboratory) were prepared.
- the light receiving element (photodiode KPDG006HA1 manufactured by Kyosemi Co., Ltd.) was mounted on the mounting pad of the opto-electric hybrid board of the above example using an ultrasonic mounting machine flip chip bonder (manufactured by Panasonic Factory Solutions Co., Ltd., FCB3).
- the mounting conditions were an element temperature of 150 ° C., a temperature of the opto-electric hybrid board of 50 ° C., a pressing load of 1.0 N, an ultrasonic output of 3.0 W, and a mounting time of 0.5 seconds. And it confirmed that the light receiving element act
- the metal reinforcing layer is made of chromium plating (elastic modulus 248 GPa), cobalt plating (elastic modulus 211 GPa), manganese plating (elastic modulus 159 GPa), or platinum plating (elastic modulus). Even if it replaced with 152 GPa), the result which shows the same tendency as the above was obtained, respectively. Furthermore, even when the thickness of the metal reinforcing layer was changed to 1 ⁇ m and 20 ⁇ m, results showing the same tendency as above were obtained.
- the opto-electric hybrid board of the present invention can be used to eliminate mounting defects of elements such as optical elements.
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- Optical Couplings Of Light Guides (AREA)
Abstract
Description
ここで、上記アンダークラッド層およびオーバークラッド層の形成材料は、脂肪族変性エポキシ樹脂(DIC社製、EPICLONEXA-4816)50重量部、脂環式二官能エポキシ樹脂(ダイセル社製、セイロキサイド2021P)30重量部、ポリカーボネートジオール(ダイセル社製、プラクセルCD205PL)20重量部、光酸発生剤(アデカ社製、SP170)2重量部、乳酸エチル(武蔵野化学研究所社製)5重量部を混合することにより、調製した。
また、上記コアの形成材料は、o-クレゾールノボラックグリシジルエーテル(新日鉄住金化学社製、YDCN-700-10)50重量部、ビスフェノキシエタノールフルオレンジグリシジルエーテル(大阪ガスケミカル社製、オグゾールEG)50重量部、光酸発生剤(アデカ社製、SP170)1重量部、乳酸エチル(武蔵野化学研究所社製)50重量部を混合することにより、調製した。
上記実施例の光電気混載基板の実装用パッドに、受光素子(京セミ社製、フォトダイオードKPDG006HA1)を、超音波実装機フリップチップボンダー(パナソニックファクトリーソリューションズ社製、FCB3)を用いて実装した。その実装条件は、素子温度150℃、光電気混載基板の温度50℃、押圧荷重1.0N、超音波出力3.0W、実装時間0.5秒とした。そして、その受光素子が適正に作動することを確認した。このことから、実装不良がなく、受光素子が適正に実装されていたことがわかる。
M 金属製補強層
W 光導波路
1 絶縁層
2A,2B 電気配線
2a 実装用パッド
Claims (3)
- 絶縁層の表面に実装用パッドを有する電気配線が形成されているフレキシブル回路基板と、上記実装用パッドに実装された素子と、上記絶縁層の裏面側に積層された光導波路とを備えた光電気混載基板であって、上記フレキシブル回路基板が、絶縁層の裏面にも電気配線が形成されたフレキシブル両面回路基板であり、その裏面側の電気配線のうち、少なくとも上記実装用パッドに対応する部分に、金属製補強層がめっき形成され、その金属製補強層に、上記光導波路が当接した状態になっていることを特徴とする光電気混載基板。
- 上記裏面側の電気配線が、厚み5~15μmの範囲内であり、上記金属製補強層が、弾性率152GPa以上かつ厚み1~20μmの範囲内である請求項1記載の光電気混載基板。
- 上記フレキシブル両面回路基板において、表面側の電気配線と裏面側電気配線とが接続した状態になっている請求項1または2記載の光電気混載基板。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/893,245 US9632246B2 (en) | 2013-06-06 | 2014-03-31 | Opto-electric hybrid board |
EP14807607.8A EP2985646A1 (en) | 2013-06-06 | 2014-03-31 | Opto-electric hybrid substrate |
CN201480026145.7A CN105190384B (zh) | 2013-06-06 | 2014-03-31 | 光电混载基板 |
KR1020157032066A KR102189206B1 (ko) | 2013-06-06 | 2014-03-31 | 광전기 혼재 기판 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013-120088 | 2013-06-06 | ||
JP2013120088A JP6245569B2 (ja) | 2013-06-06 | 2013-06-06 | 光電気混載基板 |
Publications (1)
Publication Number | Publication Date |
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WO2014196252A1 true WO2014196252A1 (ja) | 2014-12-11 |
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Application Number | Title | Priority Date | Filing Date |
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PCT/JP2014/059399 WO2014196252A1 (ja) | 2013-06-06 | 2014-03-31 | 光電気混載基板 |
Country Status (7)
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US (1) | US9632246B2 (ja) |
EP (1) | EP2985646A1 (ja) |
JP (1) | JP6245569B2 (ja) |
KR (1) | KR102189206B1 (ja) |
CN (1) | CN105190384B (ja) |
TW (1) | TWI623785B (ja) |
WO (1) | WO2014196252A1 (ja) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
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US10739518B2 (en) * | 2015-12-21 | 2020-08-11 | International Business Machines Corporation | Optical components for wavelength division multiplexing with high-density optical interconnect modules |
US20190259634A1 (en) * | 2016-07-04 | 2019-08-22 | China Wafer Level Csp Co., Ltd. | Packaging structure and packaging method |
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EP2985646A1 (en) | 2016-02-17 |
TW201447409A (zh) | 2014-12-16 |
JP6245569B2 (ja) | 2017-12-13 |
KR20160019058A (ko) | 2016-02-18 |
CN105190384A (zh) | 2015-12-23 |
US9632246B2 (en) | 2017-04-25 |
US20160178839A1 (en) | 2016-06-23 |
JP2014238455A (ja) | 2014-12-18 |
CN105190384B (zh) | 2019-03-01 |
KR102189206B1 (ko) | 2020-12-09 |
TWI623785B (zh) | 2018-05-11 |
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