JP2002098851A - Method for manufacturing optical bus member and optical bus device - Google Patents
Method for manufacturing optical bus member and optical bus deviceInfo
- Publication number
- JP2002098851A JP2002098851A JP2000287659A JP2000287659A JP2002098851A JP 2002098851 A JP2002098851 A JP 2002098851A JP 2000287659 A JP2000287659 A JP 2000287659A JP 2000287659 A JP2000287659 A JP 2000287659A JP 2002098851 A JP2002098851 A JP 2002098851A
- Authority
- JP
- Japan
- Prior art keywords
- light guide
- optical
- optical bus
- separator
- resin material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、配線基板上に実装
されてマイクロプロセッサやメモリ等の各ディバイス間
を接続してデータ信号等を光学的に伝送する光バス部材
の製造方法及びこの光バス部材を備える光バス装置に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing an optical bus member which is mounted on a wiring board and connects devices such as a microprocessor and a memory to optically transmit data signals and the like, and this optical bus. The present invention relates to an optical bus device including a member.
【０００２】[0002]
【従来の技術】パーソナルコンピュータ等の情報処理装
置においては、例えばプロセッサの高速化やメモリの高
速大容量化等によってその処理能力の向上が図られてい
る。また、情報処理装置においては、各ディバイス間を
接続するバスによりデータ信号等の伝送を行うが、この
バスについての高速化や大容量化が図られている。情報
処理装置においては、配線基板上に上述した各ディバイ
スが実装され、この配線基板上に各ディバイスを接続す
る接続ランドとともに所定のバス導体を銅箔等によって
形成してネットワーク網を構成していた。バス導体は、
各ディバイス間にデータ信号を電気的信号により伝送す
る。2. Description of the Related Art In an information processing apparatus such as a personal computer, the processing capability has been improved by, for example, increasing the speed of a processor or increasing the speed of a memory. Further, in the information processing apparatus, data signals and the like are transmitted by a bus connecting the devices, and the speed and capacity of the bus are increased. In the information processing device, the above-described devices are mounted on a wiring board, and a predetermined bus conductor is formed of copper foil or the like together with connection lands for connecting the devices on the wiring board to form a network. . The bus conductor is
Data signals are transmitted between the devices by electrical signals.
【０００３】[0003]
【発明が解決しようとする課題】情報処理装置等におい
ては、例えばバス導体を幅広に形成することによって、
データ伝送の高速化、大容量化を図っている。バス導体
は、幅広とされることによってある程度データ伝送速度
を上げることが可能とされるが、電気的抵抗によりその
限界があった。バス導体は、幅広の対応によって配線基
板の実装密度を低下させるとともに、相互に充分な間隔
を保持してクロストークを抑制するためにさらに実装密
度を低下させる。バス導体は、伝送される電気的信号に
起因して外部への不要輻射が生じ、その遮蔽対策が必要
であった。In an information processing device or the like, for example, by forming a bus conductor wide,
The data transmission speed and capacity have been increased. Although the bus conductor is made wider, it is possible to increase the data transmission speed to some extent, but there is a limit due to electric resistance. The bus conductor lowers the mounting density of the wiring board in response to the wideness, and further lowers the mounting density in order to maintain a sufficient interval between them and suppress crosstalk. The bus conductor generates unnecessary radiation to the outside due to a transmitted electric signal, and thus a shielding measure is required.
【０００４】したがって、本発明は、配線基板上に実装
された各ディバイス間でデータ信号等を高速伝送すると
ともにクロストークや外部への不要輻射を抑制する光バ
ス部材の製造方法及びこの光バス部材を備えた光バス装
置を提供することを目的に提案されたものである。Accordingly, the present invention provides a method of manufacturing an optical bus member for transmitting a data signal or the like at high speed between devices mounted on a wiring board and suppressing crosstalk and unnecessary radiation to the outside, and this optical bus member. The present invention has been proposed for the purpose of providing an optical bus device provided with:
【０００５】[0005]
【課題を解決するための手段】上述した目的を達成する
本発明にかかる光バス部材の製造方法は、光バス原反成
形工程と、光バス中間体形成工程と、光信号入出力部形
成工程と、切断工程とを備える。光バス原反成形工程に
おいては、第１の屈折率を有する導光樹脂材により成形
される複数の導光部と、第１の屈折率と異にする第２の
屈折率を有する樹脂材によって導光部の第１の主面を露
呈させるとともに少なくともこの第１の主面と直交する
両側に成形されて各導光部の間隔を保持するセパレータ
部とからなる光バス原反を成形する。光バス中間体形成
工程においては、光バス原反成形工程によって成形され
た光バス原反に加熱圧延加工を施こして所定幅の長尺な
光バス中間体を形成する。光信号入出力部形成工程にお
いては、光バス中間体に形成された導光部の第１の主面
に長さ方向に対して所定の間隔を以って少なくとも２つ
の光信号入出力部を形成する。切断工程においては、光
バス中間体を所定の長さに切断する。According to the present invention, there is provided a method of manufacturing an optical bus member, which comprises the steps of: forming an optical bus substrate, forming an optical bus intermediate, and forming an optical signal input / output section. And a cutting step. In the optical bus material forming step, a plurality of light guide portions formed of a light guide resin material having a first refractive index and a resin material having a second refractive index different from the first refractive index are used. An original optical bus is formed, exposing the first main surface of the light guide and exposing the separator at least on both sides orthogonal to the first main surface to maintain an interval between the light guides. In the optical bus intermediate forming step, a long optical bus intermediate having a predetermined width is formed by subjecting the raw optical bus formed in the optical bus raw forming step to hot rolling. In the optical signal input / output section forming step, at least two optical signal input / output sections are provided on the first main surface of the light guide section formed on the optical bus intermediate at predetermined intervals in the length direction. Form. In the cutting step, the optical bus intermediate is cut into a predetermined length.
【０００６】また、本発明にかかる光バス部材の製造方
法は、セパレータ部材成形工程と、導光部材形工程と、
端面処理工程とを備える。セパレータ部材成形工程は、
第１の屈折率を有する樹脂材によりセパレータ部材を成
形する。導光部材形工程は、第１の屈折率と異にする第
２の屈折率を有する導光樹脂材により、第１の主面に長
さ方向に対して所定の間隔を以って離間された少なくと
も２つの光信号入出力部が形成されるとともにセパレー
タ部材によって間隔を保持されかつ両側面を遮光された
複数の導光部材を成形する。Further, the method of manufacturing an optical bus member according to the present invention comprises a separator member forming step, a light guide member forming step,
And an end face processing step. The separator member molding process
A separator member is formed from a resin material having a first refractive index. In the light guide member forming step, the light guide resin material having a second refractive index different from the first refractive index is separated from the first main surface at a predetermined interval in the length direction. At least two optical signal input / output portions are formed, and a plurality of light guide members are formed, which are spaced from each other by a separator member and whose both side surfaces are shielded from light.
【０００７】以上の工程を備える本発明にかかる光バス
部材の製造方法によれば、マイクロプロセッサやメモリ
等のディバイスが実装された配線基板上に実装されると
ともに各光信号入出力部に光−電気変換素子が組み付け
られることによって、各ディバイス間でデータ信号等を
光学的に伝送する光バス部材が効率的に製造される。光
バス部材の製造方法によれば、各導光部が各セパレータ
部によって対向間隔と遮光状態とを保持され各ディバイ
ス間に伝送されるデータ信号等のクロストークや外部へ
の不要輻射を抑制する光バス部材が製造され、この光バ
ス部材を用いることでバスの動作周波数が上げられてシ
ステムの処理能力を向上させることを可能とする。According to the method of manufacturing an optical bus member according to the present invention having the above-described steps, the optical bus member is mounted on a wiring board on which devices such as a microprocessor and a memory are mounted and an optical signal input / output section is connected to each optical signal input / output section. By assembling the electric conversion element, an optical bus member for optically transmitting a data signal or the like between the devices is efficiently manufactured. According to the method for manufacturing an optical bus member, each light guide section is maintained at a facing interval and a light-shielded state by each separator section, and suppresses crosstalk and unnecessary radiation to the outside of a data signal and the like transmitted between the devices. An optical bus member is manufactured, and by using the optical bus member, the operating frequency of the bus can be increased, and the throughput of the system can be improved.
【０００８】さらに、上述した目的を達成する本発明に
かかる光バス装置は、複数の導光部材とセパレータ部材
とからなる光バス部材と、この光バス部材の主面に組み
合わされる一対の若しくは複数の光信号入出力ユニット
とから構成される。導光部材は、第１の導光樹脂材によ
って長軸体に成形され、外周面が非露光特性を有すると
ともに第１の主面に長さ方向に離間して少なくとも２つ
の光信号入出力部を有してなる。セパレータ部材は、第
１の導光樹脂材と屈折率を異にする樹脂材によって成形
され、第１の主面と直交する両側面間にそれぞれ介在す
ることにより導光部材間を遮光しかつ相互の間隔を保持
してなる。光信号入出力ユニットは、ホルダ部材と、こ
のホルダ部材に保持した複数の光−電気変換素子とを備
え、ホルダ部材が導光部材とセパレータ部材とを跨いで
光バス部材に組み合わされることによって各光−電気変
換素子が導光部材の第１の主面の各光信号入出力部とそ
れぞれ対向されてなる。Further, an optical bus device according to the present invention that achieves the above-mentioned object includes an optical bus member including a plurality of light guide members and a separator member, and a pair or a plurality of optical bus members combined with a main surface of the optical bus member. And an optical signal input / output unit. The light-guiding member is formed into a long-axis body by the first light-guiding resin material, has an outer peripheral surface having a non-exposure characteristic, and is spaced apart from the first main surface in the length direction by at least two optical signal input / output units. Having. The separator member is formed of a resin material having a different refractive index from that of the first light guide resin material, and interposes between both side surfaces orthogonal to the first main surface to shield light between the light guide members and to allow mutual separation. Hold the interval. The optical signal input / output unit includes a holder member and a plurality of optical-electrical conversion elements held by the holder member, and each holder is combined with the optical bus member by straddling the light guide member and the separator member. The optical-electrical conversion element is opposed to each optical signal input / output unit on the first main surface of the light guide member.
【０００９】以上のように構成された本発明にかかる光
バス装置によれば、マイクロプロセッサやメモリ等のデ
ィバイスが実装された配線基板上に直接実装されて、各
ディバイス間でデータ信号を光学的に伝送する。光バス
装置によれば、一対の若しくは複数の光信号入出力ユニ
ットが光バス部材の主面に組み合わされることで、任意
の位置において光データ信号の入出力が可能となる。光
バス装置によれば、各導光部材がセパレータ部材によっ
て対向間隔と遮光状態とを保持されることで、各ディバ
イス間に伝送される光データ信号のクロストークや外部
への不要輻射を抑制する対応が不要であり、バスの動作
周波数が上げられてシステムの処理能力を向上させる。According to the optical bus device of the present invention configured as described above, the optical bus device is directly mounted on a wiring board on which devices such as a microprocessor and a memory are mounted, and optically transmits data signals between the devices. To be transmitted. According to the optical bus device, a pair or a plurality of optical signal input / output units are combined with the main surface of the optical bus member, so that an optical data signal can be input / output at an arbitrary position. According to the optical bus device, since each light guide member is held at the facing interval and the light-shielded state by the separator member, crosstalk and unnecessary radiation to the outside of the optical data signal transmitted between the devices are suppressed. No action is required, and the operating frequency of the bus is increased to improve the processing capacity of the system.
【００１０】[0010]
【発明の実施の形態】以下、本発明の実施の形態につい
て、図面を参照して詳細に説明する。実施の形態として
図１に示した光バス装置１は、図示しないマイクロプロ
セッサやメモリ等のディバイスが適宜実装された配線基
板１０に直接実装されて配線基板装置９を構成する。配
線基板１０には、ディバイス実装面や裏面に周知のパタ
ーン形成技術によって銅箔からなる適宜の導体部１１や
接続用のランド部１２が形成されてなる。配線基板装置
９は、導体部１１やランド部１２によって実装部品が電
気的に接続されて配線基板１０上に実装されてなる。Embodiments of the present invention will be described below in detail with reference to the drawings. The optical bus device 1 shown in FIG. 1 as an embodiment is directly mounted on a wiring substrate 10 on which devices such as a microprocessor and a memory (not shown) are appropriately mounted to constitute a wiring substrate device 9. The wiring board 10 is formed with an appropriate conductor portion 11 made of copper foil and a connection land portion 12 on a device mounting surface or a back surface by a well-known pattern forming technique. The wiring board device 9 is mounted on the wiring board 10 by mounting components being electrically connected by the conductors 11 and the lands 12.
【００１１】光バス装置１は、配線基板１０上で所定の
ディバイス間を接続することによってデータ信号を光学
的に伝送するネットワーク網を構成する。光バス装置１
は、光データ信号の光学伝送路（光学バス）を構成する
光バス部材２と、この光バス部材２の側面に対して長さ
方向に所定の間隔を以って組み付けられて伝送される光
データ信号の入出力部を構成する一対の光信号入出力ユ
ニット５（５ａ、５ｂ）とから構成される。光バス装置
１は、光バス部材２に対して光信号入出力ユニット５が
適宜の位置に組み合わされて光データ信号の入出力を行
う構成に特徴を有している。なお、光バス装置１は、複
数個の光信号入出力ユニット５を備えるようにしてもよ
いことは勿論である。The optical bus device 1 forms a network for optically transmitting data signals by connecting predetermined devices on the wiring board 10. Optical bus device 1
Is an optical bus member 2 constituting an optical transmission path (optical bus) for an optical data signal, and light to be transmitted being attached to a side surface of the optical bus member 2 at a predetermined interval in a length direction. It is composed of a pair of optical signal input / output units 5 (5a, 5b) constituting a data signal input / output unit. The optical bus device 1 is characterized in that an optical signal input / output unit 5 is combined with an optical bus member 2 at an appropriate position to input / output an optical data signal. It is needless to say that the optical bus device 1 may include a plurality of optical signal input / output units 5.
【００１２】光バス部材２は、セパレータ部材３と、こ
のセパレータ部材３に保持された４個の導光部材４（４
ａ〜４ｄ）とからなり、詳細を後述する方法によって製
造される。光バス部材２は、各導光部材４が後述するよ
うにその内部に光データ信号を伝送することによって１
チャンネルの光バスを構成する。光バス部材２は、４個
の導光部材４ａ〜４ｄを有することによって４チャンネ
ルバスを構成するが、１個又は多数個の導光部材４を備
えることによって１チャンネルバス或いは多チャンネル
バスを構成するようにしてもよい。The optical bus member 2 includes a separator member 3 and four light guide members 4 (4) held by the separator member 3.
a to 4d), and is manufactured by a method described in detail below. The optical bus member 2 is configured such that each of the light guide members 4 transmits an optical data signal therein, as described later.
Configure the optical bus for the channel. The optical bus member 2 forms a four-channel bus by having four light guide members 4a to 4d, but forms a one-channel bus or a multi-channel bus by providing one or many light guide members 4. You may make it.
【００１３】光バス部材２は、セパレータ部材３と導光
部材４とが異なる屈折率を有する合成樹脂材によって成
形される。セパレータ部材３は、例えばフッ素系樹脂材
等の機械的剛性を有する樹脂材によって成形され、各導
光部材４を保持するとともに各導光部材４の第１の主面
４Ａを除く外周面からの光の露光を遮断或いは抑制する
作用を奏する。セパレータ部材３は、成形特性を損なわ
ない範囲で樹脂材に対して例えばアルミニウム粉等が混
入されることによって、上述した導光部材４に対する露
光抑制作用の向上を図るようにしてもよい。In the optical bus member 2, the separator member 3 and the light guide member 4 are formed of a synthetic resin material having different refractive indexes. The separator member 3 is formed of, for example, a resin material having mechanical rigidity such as a fluorine-based resin material. The separator member 3 holds each light guide member 4 and also measures a distance from an outer peripheral surface of the light guide member 4 excluding the first main surface 4A. It has the effect of blocking or suppressing light exposure. The separator member 3 may be made to improve the above-described exposure suppressing effect on the light guide member 4 by mixing, for example, aluminum powder or the like into the resin material within a range that does not impair the molding characteristics.
【００１４】セパレータ部材３には、図２及び図３に示
すように、主面３ａにそれぞれ等しい幅寸法を有する４
個の組込溝１３（１３ａ〜１３ｄ）が互いに平行でかつ
等間隔を以って凹設されている。各組込溝１３は、導光
部材４の個数に応じて形成され、それぞれ断面が矩形形
状を呈してセパレータ部材３の長手方向の両側面に開放
された長溝からなる。セパレータ部材３には、各組込溝
１３内に導光部材４がそれぞれ１個ずつ組み込まれるこ
とによって、各隔壁１４ａ〜１４ｅにより各導光部材４
を互いに平行でかつ所定の間隔に保持する。セパレータ
部材３は、各組込溝１３の底面と隔壁とが、各導光部材
４の３つの外周面に接合される。As shown in FIGS. 2 and 3, the separator member 3 has a width equal to the width of the main surface 3a.
The mounting grooves 13 (13a to 13d) are recessed in parallel with each other and at equal intervals. Each of the built-in grooves 13 is formed in accordance with the number of the light guide members 4, and has a rectangular cross section, and is formed of a long groove which is opened on both side surfaces in the longitudinal direction of the separator member 3. In the separator member 3, each light guide member 4 is incorporated into each of the built-in grooves 13 by the partition walls 14 a to 14 e.
Are kept parallel to each other and at a predetermined interval. In the separator member 3, the bottom surface of each of the built-in grooves 13 and the partition wall are joined to three outer peripheral surfaces of each of the light guide members 4.
【００１５】各導光部材４は、例えばプラスチック光フ
ァイバーの材料として用いられるアクリル樹脂やポリカ
ーボネート樹脂等の光透過性の大きい導光樹脂材によっ
て成形される。各導光部材４は、その外形形状が、セパ
レータ部材３の組込溝１３の開口形状とほぼ等しく成形
されてなる。すなわち、各導光部材４は、それぞれ長さ
寸法と断面寸法とが各組込溝１３の長さ寸法及び断面寸
法とほぼ等しく形成された矩形棒状体を呈している。各
導光部材４は、各組込溝１３にそれぞれ組み込まれた状
態において、図２及び図３に示すようにそれぞれの第１
の主面４Ａがセパレータ部材３の主面３ａと略同一面を
構成して外方に露呈される。Each light guide member 4 is formed of a light guide resin material having high light transmittance, such as an acrylic resin or a polycarbonate resin used as a material of a plastic optical fiber. Each light guide member 4 is formed such that its outer shape is substantially equal to the opening shape of the mounting groove 13 of the separator member 3. That is, each light guide member 4 has a rectangular rod shape in which the length dimension and the cross-sectional dimension are substantially equal to the length dimension and the cross-sectional dimension of each of the built-in grooves 13. In a state where each light guide member 4 is installed in each of the installation grooves 13, as shown in FIGS.
4A constitutes substantially the same plane as the main surface 3a of the separator member 3 and is exposed to the outside.
【００１６】各導光部材４は、光損失を最小限にしてそ
の内部に光データ信号を導光するとともに、外周面にお
いて全反射を生じて光データ信号が外部へと露光されな
いようにする特性を有している。また、各導光部材４
は、それぞれ外周面において外部光を全反射させて内部
へと導光されない特性を有している。各導光部材４は、
それぞれの長手方向の両端面１７、１８が、詳細を後述
するように光データ信号の内部反射を防止或いは抑制す
る無反射端面として構成されている。各導光部材４は、
両端面１７、１８における光データ信号の反射を制御し
て反射光データ信号を抑制することによって、後述する
ように各光信号入出力ユニット５における光データ信号
の検出が高精度に行われるようにする。Each of the light guide members 4 guides an optical data signal into the light guide member 4 while minimizing light loss, and also causes total reflection on the outer peripheral surface to prevent the optical data signal from being exposed to the outside. have. In addition, each light guide member 4
Have a characteristic that the external light is totally reflected on the outer peripheral surface and is not guided inside. Each light guide member 4
Both longitudinal end faces 17 and 18 are configured as non-reflective end faces that prevent or suppress internal reflection of the optical data signal, as described in detail later. Each light guide member 4
By controlling the reflection of the optical data signal at both end faces 17 and 18 to suppress the reflected optical data signal, the optical data signal can be detected with high accuracy in each optical signal input / output unit 5 as described later. I do.
【００１７】各導光部材４は、両端面１７、１８が、例
えば図４に示した光バス部材２３のように先端に向かっ
て次第に厚み寸法を小さくする傾斜面２４に形成するこ
とで無反射端面として構成されてなる。各導光部材４
は、傾斜面２４の角度が、内部を導光される光データ信
号を両端面１７、１８において反射を生じさせることな
く先端部に向かって次第に導くようにする特性のブリュ
ースタ角を付与されてなる。ブリュースタ角は、具体的
には樹脂材と空気との屈折率によって決定される角度で
ある。Each light guide member 4 has non-reflective surfaces by forming both end surfaces 17, 18 on an inclined surface 24 whose thickness gradually decreases toward the tip end, for example, as in an optical bus member 23 shown in FIG. It is configured as an end face. Each light guide member 4
Is provided with a Brewster angle having such a characteristic that the angle of the inclined surface 24 gradually guides the optical data signal guided inside toward the front end without causing reflection at both end faces 17 and 18. Become. The Brewster angle is specifically an angle determined by the refractive index between the resin material and air.
【００１８】各導光部材４は、例えば図５に示した光バ
ス部材２５のように端面２６に黒色塗料を塗布して無反
射膜層２７を形成することによって、端面２６を無反射
端面として構成するようにしてもよい。導光部材４は、
内部を導光される光データ信号が端面２６において無反
射膜層２７に吸収されることで反射光データ信号の発生
を抑制する。Each light guide member 4 is formed, for example, by coating a black paint on an end face 26 to form a non-reflective film layer 27 like an optical bus member 25 shown in FIG. It may be configured. The light guide member 4 is
The optical data signal guided inside is absorbed by the non-reflective film layer 27 at the end face 26, thereby suppressing the generation of the reflected optical data signal.
【００１９】各導光部材４には、図２に示すように第１
の主面４Ａに、長手方向に離間して第１の光信号入出力
部１５と第２の光信号入出力部１６とが形成されてい
る。第１の光信号入出力部１５は、幅方向に離間してそ
れぞれ粗面処理が施こされることによって構成された入
力部１５ａと出力部１５ｂとからなる。第２の光信号入
出力部１６も、幅方向に離間してそれぞれ粗面処理が施
こされることによって構成された入力部１６ａと出力部
１６ｂとからなる。第１の光信号入出力部１５と第２の
光信号入出力部１６とは、一方側の入力部１５ａ、１６
ａが相手側の出力部１５ｂ、１６ｂに対向して形成され
てなる。Each light guide member 4 has a first light guide as shown in FIG.
A first optical signal input / output section 15 and a second optical signal input / output section 16 are formed on the main surface 4A of the first optical element and spaced apart in the longitudinal direction. The first optical signal input / output unit 15 is composed of an input unit 15a and an output unit 15b that are configured to be separated from each other in the width direction and subjected to a roughening process. The second optical signal input / output unit 16 also includes an input unit 16a and an output unit 16b that are formed by performing a roughening process separately from each other in the width direction. The first optical signal input / output unit 15 and the second optical signal input / output unit 16 are connected to the input units 15a and 16 on one side.
a is formed to face the output units 15b and 16b on the other side.
【００２０】各光信号入出力ユニット５は、詳細を後述
するホルダ部材６と、このホルダ部材６に保持された複
数組の光−電気変換素子、すなわち発光素子７及び受光
素子８とを備えて構成される。ホルダ部材６は、導光部
材４と屈折率を異にした合成樹脂材によって一体に成形
され、図１に示すように光バス部材２を幅方向に対して
横断するに足る長さと光バス部材２の高さ寸法よりも大
きな高さ寸法を有している。ホルダ部材６には、その底
面の光バス部材２を横断する部位に、この光バス部材２
の幅寸法と高さ寸法とがほぼ等しい嵌合凹部１９が形成
されている。ホルダ部材６は、この嵌合凹部１９を挟む
両側部位の底面が、それぞれ配線基板１０に対する接合
面２０を構成してなる。Each optical signal input / output unit 5 includes a holder member 6 whose details will be described later, and a plurality of sets of optical-electrical conversion elements held by the holder member 6, that is, a light emitting element 7 and a light receiving element 8. Be composed. The holder member 6 is formed integrally with the light guide member 4 from a synthetic resin material having a different refractive index, and has a length sufficient to cross the optical bus member 2 in the width direction as shown in FIG. 2 has a height dimension larger than the height dimension. The holder member 6 has an optical bus member 2 at a portion of the bottom surface which crosses the optical bus member 2.
A fitting recess 19 having a width dimension and a height dimension substantially equal to each other is formed. The bottom surfaces of both sides of the holder member 6 sandwiching the fitting concave portion 19 constitute bonding surfaces 20 to the wiring board 10, respectively.
【００２１】ホルダ部材６には、図３に示すように嵌合
凹部１９内に位置して導光部材４と同組数の素子取付孔
２１、２２が形成されている。各素子取付孔２１、２２
は、底面６ａ側の開口寸法がやや小径とされてホルダ部
材６を貫通する段付き貫通孔として形成されてなる。各
素子取付孔２１、２２は、ホルダ部材６が嵌合凹部１９
内に光バス部材２を嵌合して配線基板１０上に接合され
た状態において、同図に示すように各導光部材４の光信
号入出力部１５、１６の入力部１５ａ、１６ａ或いは出
力部１５ｂ、１６ｂとそれぞれ対応位置される。As shown in FIG. 3, the holder member 6 has the same number of element mounting holes 21 and 22 as the number of light guide members 4 located in the fitting recess 19. Each element mounting hole 21, 22
Is formed as a stepped through hole having a slightly smaller opening dimension on the bottom surface 6 a side and penetrating the holder member 6. Each of the element mounting holes 21 and 22 is formed so that the holder member 6 has the fitting recess 19.
In the state where the optical bus member 2 is fitted and joined on the wiring board 10, the input portions 15a and 16a or the output portions of the optical signal input / output portions 15 and 16 of each light guide member 4 as shown in FIG. The portions 15b and 16b are respectively located.
【００２２】ホルダ部材６には、各素子取付孔２１、２
２内に発光素子７或いは受光素子８がそれぞれ嵌合され
て取り付けられる。各発光素子７及び受光素子８は、図
３に示すようにそれぞれの発光面７ａ或いは受光面８ａ
とが各導光部材４の第１の主面４Ａと対向されて各素子
取付孔２１、２２内に取り付けられる。ホルダ部材６
は、この状態において、同図に示すように底面６ａが各
導光部材４の第１の主面４Ａに密着される。したがっ
て、ホルダ部材６は、各隔壁１４の底面が各光信号入出
力部１５、１６の入力部１５ａと出力部１５ｂ或いは入
力部１６ａと出力部１６ｂとの間に介在してこれらから
露光する光データ信号を遮光する。The holder member 6 has element mounting holes 21 and 2
The light-emitting element 7 or the light-receiving element 8 is fitted and attached in the inside 2. Each light-emitting element 7 and light-receiving element 8 have a light-emitting surface 7a or light-receiving surface 8a as shown in FIG.
Are mounted in the element mounting holes 21 and 22 so as to face the first main surface 4A of each light guide member 4. Holder member 6
In this state, the bottom surface 6a is in close contact with the first main surface 4A of each light guide member 4 as shown in FIG. Therefore, the holder member 6 has a bottom surface of each partition 14 interposed between the input section 15a and the output section 15b or the input section 16a and the output section 16b of each of the optical signal input / output sections 15 and 16 and exposed to light therefrom. Shields data signals.
【００２３】光信号入出力ユニット５は、この状態にお
いて各発光素子７と受光素子８とがそれぞれの発光面７
ａ或いは受光面８ａを各導光部材４の光信号入出力部１
５、１６の入力部１５ａ、１６ａ或いは出力部１５ｂ、
１６ｂとにそれぞれ対向されるようになる。各発光素子
７及び受光素子８は、ホルダ部材６の背面６ｂ側から引
き出されたリード線７ｂ、８ｂが所定のディバイスの入
力部或いは出力部と接続される。In this state, the light signal input / output unit 5 is configured such that each light emitting element 7 and the light receiving element 8
a or the light receiving surface 8a is connected to the optical signal input / output unit 1 of each light guide member 4.
5, 16 input units 15a, 16a or output units 15b,
16b. In each of the light emitting element 7 and the light receiving element 8, lead wires 7 b and 8 b drawn from the back surface 6 b side of the holder member 6 are connected to an input unit or an output unit of a predetermined device.
【００２４】第１の光信号入出力ユニット５ａは、第１
の光信号入出力部１５に対応した位置で光バス部材２を
跨ぐようにして配線基板１０上に接合される。第２の光
信号入出力ユニット５ｂも、同様に第２の光信号入出力
部１６に対応した位置で光バス部材２を跨ぐようにして
配線基板１０上に接合される。光信号入出力ユニット５
は、第１の光信号入出力ユニット５ａの発光素子７から
出射した光データ信号が第１の光信号入出力部１５の入
力部１５ａを介して導光部材４の内部に導光されるよう
にする。光信号入出力ユニット５は、光データ信号が導
光部材４の内部を第２の光信号入出力部１６まで導光さ
れてその出力部１６ｂから外部へと露光することで、受
光素子８によって検出する。The first optical signal input / output unit 5a
Are joined on the wiring board 10 so as to straddle the optical bus member 2 at a position corresponding to the optical signal input / output unit 15. Similarly, the second optical signal input / output unit 5b is joined to the wiring board 10 so as to straddle the optical bus member 2 at a position corresponding to the second optical signal input / output unit 16. Optical signal input / output unit 5
Is such that the optical data signal emitted from the light emitting element 7 of the first optical signal input / output unit 5a is guided into the light guide member 4 via the input section 15a of the first optical signal input / output section 15. To The optical signal input / output unit 5 guides the optical data signal inside the light guide member 4 to the second optical signal input / output unit 16 and exposes the optical data signal from the output unit 16b to the outside. To detect.
【００２５】光バス部材２は、上述したようにセパレー
タ部材３に形成した複数の組込溝１３にそれぞれ導光部
材４を組み込んで構成したが、かかる構成に限定される
ものではないことは勿論である。例えば図６に示した光
バス部材２９は、互いにほぼ同一の高さ寸法を有する複
数個のセパレータ部材３と導光部材４とを交互に積層し
て一体化してなる。光バス部材２９は、導光部材４が第
１の主面４Ａと直交する両側面４Ｂ、４Ｃをセパレータ
部材３によって遮光されるが、第１の主面４Ａ及び底面
２８が外方に露呈される。As described above, the optical bus member 2 is configured by incorporating the light guide member 4 in each of the plurality of built-in grooves 13 formed in the separator member 3, but it is needless to say that the present invention is not limited to such a configuration. It is. For example, the optical bus member 29 shown in FIG. 6 is formed by alternately stacking a plurality of separator members 3 and light guide members 4 having substantially the same height dimensions and integrating them. In the optical bus member 29, the light guide member 4 is shielded from light by the separator member 3 on both side surfaces 4B and 4C orthogonal to the first main surface 4A, but the first main surface 4A and the bottom surface 28 are exposed to the outside. You.
【００２６】したがって、光バス部材２９は、導光部材
４の底面２８に反射層３０が形成され、外乱光の影響を
抑制するように構成される。なお、光バス部材２９に
は、導光部材４の端面２６に上述した無反射膜２７が形
成される。光バス部材２９は、導光部材４に対して底面
２８の反射層形成と端面２６の無反射膜形成とを同時に
処理するようにしてもよい。Therefore, the optical bus member 29 is configured such that the reflection layer 30 is formed on the bottom surface 28 of the light guide member 4 so as to suppress the influence of disturbance light. In the optical bus member 29, the above-described anti-reflection film 27 is formed on the end surface 26 of the light guide member 4. The optical bus member 29 may simultaneously perform the formation of the reflection layer on the bottom surface 28 and the formation of the non-reflection film on the end surface 26 of the light guide member 4.
【００２７】また、上述した光バス装置１においては、
光バス部材２を構成する各導光部材４の第１の主面４ａ
にそれぞれ粗面処理を施して内部に光データ信号を入射
させるとともに内部から光データ信号を露光させる各光
信号入出力部１５、１６を形成するようにしたが、かか
る構成に限定されるものではないことは勿論である。光
バス装置１は、各導光部材４の第１主面４Ａに対して、
例えばその樹脂材と同一組成の接着剤によって光信号入
出力ユニット５の各発光素子７と受光素子８とをそれぞ
れ直付けするようにしてもよい。In the optical bus device 1 described above,
First main surface 4a of each light guide member 4 constituting optical bus member 2
Each of the optical signal input / output units 15 and 16 for subjecting the optical data signal to the inside and exposing the optical data signal from the inside is formed by subjecting each of the optical signal signals to a rough surface treatment, but is not limited to such a configuration. Of course not. The optical bus device 1 is configured such that, with respect to the first main surface 4A of each light guide member 4,
For example, each light emitting element 7 and light receiving element 8 of the optical signal input / output unit 5 may be directly attached to each other with an adhesive having the same composition as the resin material.
【００２８】光バス装置１においては、導光部材４と同
一特性の樹脂接着剤が発光素子７の発光面７ａ或いは受
光素子８の受光面８ａに密着して光学的に一体化された
導光部を構成する。したがって、光バス装置１において
は、樹脂接着剤層が内部から光データ信号を導光するこ
とによって、発光素子７からの導光部材４に対する入射
と導光部材４からの受光素子８への露光が行われるよう
になる。なお、光バス装置１は、導光部材４と素子取付
孔２１、２２との間に同様の樹脂接着剤を充填してもよ
い。In the optical bus device 1, a resin adhesive having the same characteristics as the light guide member 4 is brought into close contact with the light emitting surface 7 a of the light emitting element 7 or the light receiving surface 8 a of the light receiving element 8 to be optically integrated. Make up the part. Therefore, in the optical bus device 1, the resin adhesive layer guides the optical data signal from the inside, so that the light emitting element 7 enters the light guiding member 4 and the light guiding member 4 exposes the light receiving element 8. Will be performed. The optical bus device 1 may be filled with the same resin adhesive between the light guide member 4 and the element mounting holes 21 and 22.
【００２９】光バス部材２は、上述したようにセパレー
タ部材３の各組込溝１３に対して、別部材からなる各導
光部材４をそれぞれ組み付けて構成したが、かかる構成
に限定されるものでは無いことは勿論である。光バス部
材２は、後述する製造工程の説明のように異なる屈折率
を有する樹脂材を成型金型に充填してセパレータ部材３
と導光部材４とを一体に成形してもよい。光バス部材２
は、この場合、成型金型内にセパレータ部材３の樹脂材
と導光部材４の樹脂材とを交互に充填して成形するダブ
ル成型法が採用される。また、光バス部材２は、第１の
成形工程によってセパレータ部材３を成形し、このセパ
レータ部材３を成形金型中に保持した状態で導光部材４
を一体的に成形するインサート成型法が採用されてもよ
い。The optical bus member 2 is constructed by assembling the respective light guide members 4 made of different members into the respective assembly grooves 13 of the separator member 3 as described above, but is not limited to such a configuration. Of course not. The optical bus member 2 is formed by filling a molding die with a resin material having a different refractive index as described in the manufacturing process described later.
And the light guide member 4 may be integrally formed. Optical bus member 2
In this case, a double molding method of alternately filling and molding the resin material of the separator member 3 and the resin material of the light guide member 4 in a molding die is employed. Further, the optical bus member 2 forms the separator member 3 in the first molding step, and the light guide member 4 is held in a state where the separator member 3 is held in a molding die.
May be employed as an integral molding method.
【００３０】以上のように構成された光バス装置１は、
光バス部材２が配線基板１０上の所定の位置に接合され
るとともに、この光バス部材２を跨いで光信号入出力ユ
ニット５も配線基板１０上に接合されることによって配
線基板装置９を構成する。すなわち、光バス部材２は、
セパレータ部材３の底面に接着剤が塗布され、図１に示
すように配線基板１０上に直付けされる。光バス部材２
には、各導光部材４の第１の光信号入出力部１５及び第
２の光信号入出力部１６に対応位置して、第１の光信号
入出力ユニット５ａ及び第２の光信号入出力ユニット５
ｂが組み合わされる。The optical bus device 1 configured as described above,
The optical bus member 2 is joined to a predetermined position on the wiring board 10, and the optical signal input / output unit 5 is also joined to the wiring board 10 across the optical bus member 2 to form the wiring board device 9. I do. That is, the optical bus member 2 is
An adhesive is applied to the bottom surface of the separator member 3 and is directly mounted on the wiring board 10 as shown in FIG. Optical bus member 2
The first optical signal input / output unit 5a and the second optical signal input / output unit 5a are located at positions corresponding to the first optical signal input / output unit 15 and the second optical signal input / output unit 16 of each light guide member 4. Output unit 5
b are combined.
【００３１】各光信号入出力ユニット５は、各ホルダ部
材６の接合面２０にそれぞれ接着剤が塗布されるととも
に、光バス部材２を嵌合凹部１９に嵌合させて配線基板
１０上に直付けされる。各光信号入出力ユニット５は、
この状態において各素子取付孔２１、２２に対して、第
１の光信号入出力部１５の入力部１５ａと出力部１５ｂ
或いは第２の光信号入出力部１６の入力部１６ｂと出力
部１６ａとがそれぞれ臨ませられる。各光信号入出力ユ
ニット５には、各素子取付孔２１、２２に発光素子７と
受光素子８とがそれぞれ装着される。各光信号入出力ユ
ニット５は、各発光素子７と受光素子８とがリード線７
ｂ、８ｂによって所定のディバイスと接続されて光バス
装置１を構成する。In each optical signal input / output unit 5, an adhesive is applied to the joint surface 20 of each holder member 6, and the optical bus member 2 is fitted into the fitting concave portion 19 to directly mount the optical bus member 2 on the wiring board 10. Attached. Each optical signal input / output unit 5
In this state, the input unit 15a and the output unit 15b of the first optical signal input / output unit 15 are
Alternatively, the input unit 16b and the output unit 16a of the second optical signal input / output unit 16 face each other. In each of the optical signal input / output units 5, the light emitting element 7 and the light receiving element 8 are mounted in the element mounting holes 21 and 22, respectively. Each light signal input / output unit 5 includes a light emitting element 7 and a light receiving element 8 connected to a lead wire 7.
The optical bus device 1 is configured by being connected to predetermined devices by b and 8b.
【００３２】第１の光信号入出力ユニット５ａは、所定
のディバイスからデータ信号が発光素子７に供給される
と、この発光素子７を駆動することで光データ信号を生
成して発光面７ａから光バス部材２の導光部材４へと出
射する。光バス装置１においては、この光データ信号を
発光素子７と対向する粗面処理が施された第１の光信号
入出力部１５の入力部１５ａから、導光部材４の内部へ
と導光する。光バス装置１においては、光データ信号を
導光部材４の内部において第１の光信号入出力部１５か
ら第２光信号入出力部１６へと導光して、粗面処理が施
された出力部１６ａから露光させる。When a data signal is supplied to the light emitting element 7 from a predetermined device, the first optical signal input / output unit 5a generates an optical data signal by driving the light emitting element 7 to generate an optical data signal from the light emitting surface 7a. The light exits to the light guide member 4 of the optical bus member 2. In the optical bus device 1, the optical data signal is guided from the input section 15 a of the first optical signal input / output section 15, which has been subjected to the roughening process, facing the light emitting element 7 to the inside of the light guide member 4. I do. In the optical bus device 1, the optical data signal is guided from the first optical signal input / output unit 15 to the second optical signal input / output unit 16 inside the light guide member 4, and is subjected to a roughening process. Exposure is performed from the output unit 16a.
【００３３】光バス装置１においては、第２光信号入出
力部１６に対応して第２の光信号入出力ユニット５ｂが
組み合わされており、この第２の光信号入出力ユニット
５ｂの受光素子８によって出力部１６ａから露光される
光データ信号の検出が行われる。光バス装置１において
は、受光素子８により検出した光データ信号をデータ信
号に変換して所定のディバイスに供給することで、ディ
バイス間のデータ信号の伝送を行う。In the optical bus device 1, a second optical signal input / output unit 5b is combined with the second optical signal input / output unit 16, and the light receiving element of the second optical signal input / output unit 5b is provided. 8 detects an optical data signal exposed from the output unit 16a. In the optical bus device 1, the optical data signal detected by the light receiving element 8 is converted into a data signal and supplied to a predetermined device, thereby transmitting the data signal between the devices.
【００３４】光バス装置１においては、各ディバイス間
のデータ信号の伝送を光データ信号によって行うことに
より配線基板装置９の他のディバイスや導体部或いは外
部への不要輻射の抑制が図られることから、シールド等
の対応が不要となる。光バス装置１においては、上述し
たように光バス部材２が各チャンネル毎に隔離された構
造であることから、伝送される光データ信号のクロスト
ークが抑制され配線基板１０上に高密度のバスを構成す
る。光バス装置１においては、光データ信号によりデー
タ信号の伝送を行うことでバスの動作周波数が上げられ
てシステムの処理能力を向上させることが可能である。In the optical bus device 1, transmission of data signals between the devices is performed by optical data signals, thereby suppressing unnecessary radiation to other devices, conductors, or the outside of the wiring board device 9. It is not necessary to take measures such as shielding and the like. In the optical bus device 1, as described above, since the optical bus member 2 has a structure separated for each channel, crosstalk of an optical data signal to be transmitted is suppressed, and a high-density bus is provided on the wiring board 10. Is configured. In the optical bus device 1, by transmitting a data signal using an optical data signal, the operating frequency of the bus can be increased and the processing capability of the system can be improved.
【００３５】光バス部材２の製造工程について、図７に
示したインサート成型法により製造する実施の形態につ
いて以下説明する。実施の形態として示した光バス部材
２の製造工程は、例えば射出成型法等により長尺な光バ
ス原反３６を成形し、この光バス原反３６に対して加熱
圧延加工を施して所定幅の光バス中間体３８を製作した
後に、これを所定の長さに切断して光バス部材２を連続
して製造する。With respect to the manufacturing process of the optical bus member 2, an embodiment of manufacturing by the insert molding method shown in FIG. 7 will be described below. In the manufacturing process of the optical bus member 2 shown as the embodiment, a long optical bus web 36 is formed by, for example, an injection molding method and the like, and the optical bus web 36 is heated and rolled to a predetermined width. After the optical bus intermediate body 38 is manufactured, the optical bus intermediate body 38 is cut into a predetermined length to continuously manufacture the optical bus member 2.
【００３６】光バス部材２の製造工程は、第１の屈折率
を有する第１の材料樹脂材３１を成形金型内に供給する
第１の樹脂供給工程（ｓ−１）を第１の工程とする。第
１の材料樹脂材３１には、上述したように例えばフッ素
系樹脂材が用いられる。光バス部材２の製造工程は、成
型金型によってセパレータ部材３となるセパレータ原反
３２を成形するセパレータ原反成形工程（ｓ−２）を第
２の工程とする。セパレータ原反３２は、主面に各隔壁
３３部によって区割りされた複数個の組込溝部３４が凹
設された基本形状についてセパレータ部材３と同様とす
るが、大きな外形形状を以って成形されてなる。The manufacturing process of the optical bus member 2 includes a first resin supply step (s-1) of supplying a first material resin material 31 having a first refractive index into a molding die as a first step. And As the first material resin material 31, for example, a fluorine-based resin material is used as described above. The manufacturing process of the optical bus member 2 includes, as a second process, a raw separator fabricating step (s-2) of forming the raw separator 32 to be the separator member 3 by a molding die. The separator fabric 32 has the same basic shape as the separator member 3 in which a plurality of built-in groove portions 34 divided by the partition walls 33 are formed on the main surface, but is formed with a large outer shape. It becomes.
【００３７】光バス部材２の製造工程は、成形されたセ
パレータ原反３２をキャビティ内に保持した状態で成形
金型内に第２の屈折率を有する第２の樹脂材料３５を供
給する第２の樹脂供給工程（ｓ−３）を第３の工程とす
る。第２の樹脂材料３５は、上述したように例えば透明
なアクリル樹脂が用いられる。光バス部材２の製造工程
は、セパレータ原反３２の各組込溝部３４内に第２の樹
脂材料３５をそれぞれ充填して導光部３７をインサート
成形する導光部成形工程（ｓ−４）を第４の工程とす
る。光バス部材２の製造工程は、この導光部成形工程に
よって大きな幅寸法の光バス原反３６を成形する。The manufacturing process of the optical bus member 2 includes the step of supplying the second resin material 35 having the second refractive index into the molding die while holding the molded separator 32 in the cavity. The resin supply step (s-3) is referred to as a third step. As the second resin material 35, for example, a transparent acrylic resin is used as described above. The manufacturing process of the optical bus member 2 is a light guide part forming step (s-4) in which the second resin material 35 is filled in each of the built-in groove parts 34 of the raw separator 32 and the light guide part 37 is insert-molded. Is the fourth step. In the manufacturing process of the optical bus member 2, the optical bus material 36 having a large width is formed by the light guide portion forming process.
【００３８】光バス部材２の製造工程は、光バス原反３
６に対して加熱圧延加工を施すことによって所定の幅寸
法とされた長尺の光バス中間体３８を形成する加熱圧延
工程（ｓ−５）を第５の工程とする。加熱圧延工程は、
光バス原反３６を一対の圧延ローラ３９ａ、３９ｂ間に
供給して、その幅（厚み）を光バス部材２の幅まで圧延
する。加熱圧延工程は、ヒータ４０によって光バス原反
３６を材料樹脂の塑性温度、例えば１５０℃〜７５０℃
に加熱した状態で圧延ローラ３９ａ、３９ｂ間に供給す
る。なお、加熱圧延工程においては、圧延ローラ３９
ａ、３９ｂの後段に図示しない冷却手段が配置されてお
り、形成された光バス中間体３８を冷却して形状の安定
化が図られる。The manufacturing process of the optical bus member 2 is as follows.
The heat rolling step (s-5) of forming a long optical bus intermediate body 38 having a predetermined width by applying heat rolling to No. 6 is defined as a fifth step. The hot rolling process
The raw optical bus fabric 36 is supplied between the pair of rolling rollers 39a and 39b, and the width (thickness) thereof is rolled to the width of the optical bus member 2. In the heating and rolling step, the optical bus material 36 is heated by the heater 40 to the plastic temperature of the material resin, for example, 150 ° C. to 750 ° C.
While being heated to between the rolling rollers 39a and 39b. In the heating and rolling step, the rolling roller 39 is used.
A cooling means (not shown) is arranged at the subsequent stage of a and 39b, and the formed optical bus intermediate body 38 is cooled to stabilize the shape.
【００３９】光バス部材２の製造工程は、光バス中間体
３８の一方主面３８Ａ側から導光部の表面に一定の間隔
で粗面部４１ａ、４１ｂを形成する粗面形成工程（ｓ−
６）を第６の工程とする。粗面形成工程は、例えばやや
加熱された状態にある各導光部の表面に先端を粗面とし
たポンチを押し付けることによって粗面部４１ａ、４１
ｂを形成する。各粗面部４１ａ、４１ｂは、光バス部材
２の第１の光信号入出力部１５及び第２の光信号入出力
部１６を構成する。The manufacturing process of the optical bus member 2 includes a rough surface forming step (s-) in which the rough surface portions 41a and 41b are formed at regular intervals on the surface of the light guide from the one main surface 38A side of the optical bus intermediate body 38.
Step 6) is the sixth step. The rough surface forming step is performed by, for example, pressing a punch having a roughened tip on the surface of each light guide portion in a slightly heated state by pressing the rough surface portions 41a and 41.
b is formed. The rough surface portions 41 a and 41 b constitute a first optical signal input / output unit 15 and a second optical signal input / output unit 16 of the optical bus member 2.
【００４０】光バス部材２の製造工程は、カッタ４２に
よって光バス中間体３８を幅方向に対して所定の長さで
切断する切断工程（ｓ−７）を第７の工程とする。光バ
ス部材２の製造工程は、この切断工程によって光バス部
材２が切り分けられて形成される。光バス部材２の製造
工程においては、光バス部材２に対して後処理工程が施
されて配線基板装置９を製造する。光バス部材２は、両
端面がカッタ４２により切断された状態のままとなって
いるために、両端面において光データ信号の反射を生じ
させる。したがって、光バス部材２には、端子面処理工
程（ｓ−８）において、上述したように黒色塗装等を施
すことによって両端面を無反射端面とする処理が施され
る。In the manufacturing process of the optical bus member 2, a cutting step (s-7) of cutting the optical bus intermediate body 38 by the cutter 42 at a predetermined length in the width direction is a seventh step. In the manufacturing process of the optical bus member 2, the optical bus member 2 is cut and formed by this cutting step. In the manufacturing process of the optical bus member 2, a post-processing process is performed on the optical bus member 2 to manufacture the wiring board device 9. Since the optical bus member 2 is kept in a state where both end faces are cut by the cutter 42, reflection of an optical data signal occurs on both end faces. Therefore, in the terminal surface processing step (s-8), the optical bus member 2 is subjected to a process of making both end surfaces non-reflective end surfaces by applying black paint or the like as described above.
【００４１】光バス部材２は、セパレータ部の底面に接
着剤が塗布された後に、配線基板１０上に接合する基板
接合工程（ｓ−９）が施される。光バス部材２には、第
１の光信号入出力部１５及び第２の光信号入出力部１６
を跨ぐようにして第１の光信号入出力ユニット５ａ及び
第１の光信号入出力ユニット５ｂを配線基板１０上に接
合する光信号入出力ユニット工程（ｓ−１０）が施され
る。光バス部材２と光信号入出力ユニット５とは、光バ
ス装置１を構成し、この光バス装置１が配線基板１０上
に接合されることによって配線基板装置９を構成する。After the adhesive is applied to the bottom surface of the separator portion, the optical bus member 2 is subjected to a substrate joining step (s-9) of joining the optical bus member 2 to the wiring board 10. The first optical signal input / output unit 15 and the second optical signal input / output unit 16
An optical signal input / output unit step (s-10) of joining the first optical signal input / output unit 5a and the first optical signal input / output unit 5b on the wiring board 10 is performed so as to straddle. The optical bus member 2 and the optical signal input / output unit 5 constitute an optical bus device 1, and the optical bus device 1 is joined to a wiring board 10 to constitute a wiring board device 9.
【００４２】なお、光バス部材２の製造方法は、上述し
た製造工程に限定されるものでは無いことは勿論であ
る。光バス部材２の製造方法は、例えば成形金型によっ
て最初から所定形状の光バス部材２を成形するようにし
てもよい。かかる光バス部材２の製造方法は、微小な光
バス部材２を成形することで成形金型がより精密に加工
されることになるが、成形加熱圧延工程や切断工程が不
要となる。The method of manufacturing the optical bus member 2 is not limited to the above-described manufacturing steps. The optical bus member 2 may be manufactured by, for example, molding the optical bus member 2 having a predetermined shape from the beginning by using a molding die. In the method of manufacturing the optical bus member 2, the molding die is processed more precisely by molding the minute optical bus member 2, but the forming heat rolling step and the cutting step are not required.
【００４３】[0043]
【発明の効果】以上詳細に説明したように、本発明にか
かる光バス部材の製造方法によれば、マイクロプロセッ
サやメモリ等のディバイスが実装された配線基板上に実
装されるとともに各光信号入出力部に光−電気変換素子
が組み付けられて光バス装置を構成し、各ディバイス間
でデータ信号を光学的に伝送する光バス部材が効率的に
製造される。光バス部材の製造方法によれば、各導光部
が各セパレータ部によって相互の対向間隔と遮光状態と
を保持されることで、各ディバイス間に伝送される光デ
ータ信号のクロストークや外部への不要輻射を抑制する
光バス部材が製造され、この光バス部材を用いることで
動作周波数を上げれ大容量化、高速伝送化によるシステ
ムの処理能力を向上させたバスシステムが構築される。As described above in detail, according to the method for manufacturing an optical bus member according to the present invention, the optical bus member is mounted on a wiring board on which devices such as a microprocessor and a memory are mounted, and each optical signal input is performed. An optical-to-electrical conversion element is assembled to the output section to constitute an optical bus device, and an optical bus member for optically transmitting a data signal between devices is efficiently manufactured. According to the manufacturing method of the optical bus member, each light guide section is maintained in a mutually opposing interval and a light-shielded state by each separator section, so that the crosstalk of the optical data signal transmitted between the devices and the external An optical bus member that suppresses unnecessary radiation is manufactured, and by using this optical bus member, a bus system is constructed in which the operating frequency can be increased, the capacity is increased, and the processing capacity of the system is improved by high-speed transmission.
【００４４】また、本発明にかかる光バス装置によれ
ば、マイクロプロセッサやメモリ等のディバイスが実装
された配線基板上に直接実装されて、各ディバイス間で
データ信号を光学的に伝送する。光バス装置によれば、
一対の若しくは複数の光信号入出力ユニットが光バス部
材の主面に組み合わされることで、任意の位置において
光データ信号の入出力を可能とする。光バス装置によれ
ば、各導光部材がセパレータ部材によって対向間隔と遮
光状態とを保持されることで、各ディバイス間に伝送さ
れる光データ信号のクロストークや外部への不要輻射を
抑制する対応が不要であり、動作周波数が上げられて大
容量化、高速伝送化によるシステムの処理能力を向上さ
せたバスシステムを構築する。Further, according to the optical bus device of the present invention, a data signal is optically transmitted between the devices by being directly mounted on a wiring board on which devices such as a microprocessor and a memory are mounted. According to the optical bus device,
By combining a pair or a plurality of optical signal input / output units with the main surface of the optical bus member, it is possible to input and output optical data signals at an arbitrary position. According to the optical bus device, since each light guide member is held at the facing interval and the light-shielded state by the separator member, crosstalk and unnecessary radiation to the outside of the optical data signal transmitted between the devices are suppressed. A bus system that does not need to be implemented, has an increased operating frequency, and has a large capacity and a high-speed transmission to improve the processing capacity of the system.
【図１】本発明にかかる光バス装置を備えた配線基板装
置の要部斜視図である。FIG. 1 is a perspective view of a main part of a wiring board device provided with an optical bus device according to the present invention.
【図２】同光バス装置に用いられる光バス部材の一部切
欠き斜視図である。FIG. 2 is a partially cutaway perspective view of an optical bus member used in the optical bus device.
【図３】同光バス装置の要部縦断面図である。FIG. 3 is a longitudinal sectional view of a main part of the optical bus device.
【図４】光バス部材の端面構造の詳細を説明する要部断
面図である。FIG. 4 is a sectional view of an essential part for explaining details of an end face structure of the optical bus member.
【図５】同光バス部材の他の端面構造を説明する要部斜
視図である。FIG. 5 is a perspective view of a main part explaining another end face structure of the optical bus member.
【図６】同光バス部材の他の端面構造を説明する要部断
面斜視図である。FIG. 6 is a cross-sectional perspective view of a main part explaining another end surface structure of the optical bus member.
【図７】光バス装置の製造工程図である。FIG. 7 is a manufacturing process diagram of the optical bus device.
光バス装置、２ 光バス部材、３ セパレータ部材、４
導光部材、５ 光信号入出力ユニット、６ ホルダ部
材、７ 発光素子、８ 受光素子、９ 配線基板装置、
１０ 配線基板、１３ 組込溝、１４ 隔壁、１５，１
６ 光信号入出力部、１７，１８ 端面、１９ 嵌合凹
部、２１，２２ 素子取付孔、２４ ブリュースタ面、
２７ 無反射膜、３０ 反射膜、３１ 第１の樹脂材、
３２ セパレータ原反、３５ 第２の樹脂材、３６ 光
バス原反、３８ 光バス中間体、３９ 圧延ローラ、４
０ ヒータ、４２ カッタOptical bus device, 2 Optical bus member, 3 Separator member, 4
Light guide member, 5 optical signal input / output unit, 6 holder member, 7 light emitting element, 8 light receiving element, 9 wiring board device,
Reference Signs List 10 wiring board, 13 mounting groove, 14 partition, 15, 1
6 optical signal input / output unit, 17, 18 end face, 19 fitting concave part, 21, 22 element mounting hole, 24 Brewster face,
27 anti-reflection film, 30 reflection film, 31 first resin material,
32 separator raw material, 35 second resin material, 36 optical bus raw material, 38 optical bus intermediate, 39 rolling roller, 4
0 heater, 42 cutters
Claims (15)
成形される複数の導光部と、上記第１の屈折率と異にす
る第２の屈折率を有する樹脂材によって上記導光部の第
１の主面を露呈させるとともに少なくともこの第１の主
面と直交する両側に成形されて上記各導光部の間隔を保
持するセパレータ部とからなる光バス原反を成形する光
バス原反成形工程と、 上記光バス原反成形工程によって成形された上記光バス
原反に加熱圧延加工を施こして所定幅の長尺な光バス中
間体を形成する光バス中間体形成工程と、 上記光バス中間体に形成された上記導光部の第１の主面
に長さ方向に対して所定の間隔を以って少なくとも２つ
の光信号入出力部を形成する光信号入出力部形成工程
と、 上記光バス中間体を所定の長さに切断する切断工程とを
経て、配線基板上に実装されてディバイス間のデータ信
号等の光伝送路を構成する光バス部材を製造することを
特徴とする光バス部材の製造方法。1. A light guide comprising a plurality of light guide portions formed of a light guide resin material having a first refractive index and a resin material having a second refractive index different from the first refractive index. An optical bus for exposing a first main surface of a portion and a separator portion formed at least on both sides orthogonal to the first main surface to maintain an interval between the light guide portions; An optical bus intermediate forming step of subjecting the optical bus raw formed by the optical bus raw forming step to a hot rolling process to form a long optical bus intermediate having a predetermined width, An optical signal input / output section forming at least two optical signal input / output sections at a predetermined interval in a length direction on a first main surface of the light guide section formed on the optical bus intermediate; Through a forming step and a cutting step of cutting the optical bus intermediate into a predetermined length, A method for manufacturing an optical bus member, comprising manufacturing an optical bus member mounted on a wiring board and constituting an optical transmission path for data signals between devices and the like.
部の切断端面を無反射端面とする端面処理工程を施すこ
とを特徴とする請求項１に記載の光バス部材の製造方
法。2. The method of manufacturing an optical bus member according to claim 1, wherein an end face processing step of setting the cut end face of the light guide section to a non-reflective end face is performed as a post-step of the cutting step.
るセパレータ原反を成形するセパレータ原反成形工程
と、 上記セパレータ原反の各組込溝内に上記導光樹脂材料を
充填して第１の主面が露呈された複数の上記導光部をイ
ンサート成形する導光部材成形工程とからなることを特
徴とする請求項１に記載の光バス部材の製造方法。3. The optical bus raw material forming step includes: forming a raw separator material having a plurality of built-in grooves, each of which is separated by a partition wall; 2. A light guide member forming step of insert-molding a plurality of the light guide portions having a first main surface exposed by filling the light guide resin material into a groove. A method for manufacturing an optical bus member.
金属粉を混入した樹脂材料によってセパレータ原反を成
形することを特徴とする請求項３に記載の光バス部材の
製造方法。4. In the step of forming the separator web,
4. The method for manufacturing an optical bus member according to claim 3, wherein the raw separator is formed of a resin material mixed with metal powder.
カーボンブラック等の黒色粉を混入した樹脂材料によっ
てセパレータ原反を成形することを特徴とする請求項３
に記載の光バス部材の製造方法。5. In the step of forming a raw separator film,
4. The separator raw material is formed from a resin material mixed with black powder such as carbon black.
3. The method for manufacturing an optical bus member according to claim 1.
部の導光樹脂材料と、上記セパレータ部の樹脂材とを成
形金型に充填するダブル成型法が用いら、 上記導光部と上記セパレータ部とが交互に形成された上
記光バス原反を成形することを特徴とする請求項１に記
載の光バス部材の製造方法。6. The light guide material forming step includes a double molding method in which a light guide resin material of the light guide portion and a resin material of the separator portion are filled in a molding die. The method for manufacturing an optical bus member according to claim 1, wherein the optical bus material in which the portions and the separator portions are alternately formed is formed.
レータ部材を成形するセパレータ部材成形工程と、 上記第１の屈折率と異にする第２の屈折率を有する導光
樹脂材により、第１の主面に長さ方向に対して所定の間
隔を以って離間された少なくとも２つの光信号入出力部
が形成されるとともに上記セパレータ部材によって間隔
を保持されかつ両側面を遮光された複数の導光部材を成
形する導光部材形工程と、 上記導光部材の端面を無反射端面として形成する端面処
理工程とを経て、配線基板上に実装されてディバイス間
のデータ信号等の光伝送路を構成する光バス部材を製造
することを特徴とする光バス部材の製造方法。7. A separator member forming step of forming a separator member from a resin material having a first refractive index, and a light guide resin material having a second refractive index different from the first refractive index. At least two optical signal input / output portions are formed on the main surface of the first optical member at predetermined intervals in the length direction, and the plurality of optical signal input / output portions are spaced from each other by the separator member and both sides are shielded from light. Through a light guide member forming step of molding the light guide member, and an end face processing step of forming an end face of the light guide member as a non-reflection end face, for optical transmission of a data signal or the like between devices mounted on a wiring board. A method for manufacturing an optical bus member, comprising manufacturing an optical bus member constituting a road.
上記各導光部材が充填される複数の組込溝を有し、これ
ら組込溝を区割りする各隔壁が上記各導光部材の間隔を
保持するとともに両側面を遮光する一体のセパレータ部
材が成形されることを特徴とする請求項７に記載の光バ
ス部材の製造方法。8. In the separator member forming step,
Each of the light guide members has a plurality of built-in grooves to be filled, and each partition partitioning the built-in grooves holds an interval between the light guide members and forms an integral separator member that shields both side surfaces from light. The method for manufacturing an optical bus member according to claim 7, wherein the method is performed.
金属粉を混入した樹脂材料によってセパレータ部材を成
形することを特徴とする請求項７に記載の光バス部材の
製造方法。9. In the separator member forming step,
The method for manufacturing an optical bus member according to claim 7, wherein the separator member is formed of a resin material mixed with metal powder.
て、カーボンブラック等の黒色粉を混入した樹脂材料に
よってセパレータ部材を成形することを特徴とする請求
項７に記載の光バス部材の製造方法。10. The method for manufacturing an optical bus member according to claim 7, wherein in the raw separator forming step, the separator member is formed of a resin material mixed with black powder such as carbon black.
材成形工程との間に、上記セパレータ部材の各組込溝の
内壁に反射層処理を施すことを特徴とする請求項７に記
載の光バス部材の製造方法。11. An optical bus according to claim 7, wherein between the separator member forming step and the light guide member forming step, a reflection layer treatment is performed on an inner wall of each of the built-in grooves of the separator member. Manufacturing method of the member.
形されるとともに外周面が非露光特性を有しかつ第１の
主面に長さ方向に離間して少なくとも２つの光信号入出
力部が形成された複数の導光部材と、上記第１の導光樹
脂材と屈折率を異にする樹脂材によって成形されて上記
第１の主面と直交する両側面間にそれぞれ介在すること
により上記導光部材間を遮光しかつ相互の間隔を保持す
るセパレータ部材とからなる光バス部材と、 ホルダ部材と、このホルダ部材に保持された光−電気変
換素子とを備えてなる光信号入出力ユニットとから構成
され、 上記光信号入出力ユニットが上記光バス部材に対して、
上記ホルダ部材を上記導光部材の第１の主面に跨がらせ
て組み合わされることにより、上記光−電気変換素子が
上記光信号入出力部に対向されることを特徴とする光バ
ス装置。12. A long-axis body formed of a first light-guiding resin material, an outer peripheral surface of which has a non-exposure characteristic, and is separated from the first main surface in a length direction by at least two optical signals. A plurality of light guide members having output portions formed thereon, and a resin material having a refractive index different from that of the first light guide resin material are interposed between both side surfaces orthogonal to the first main surface. An optical signal comprising: an optical bus member comprising a separator member which shields the light guide members from each other and maintains a distance between the light guide members; a holder member; and an optical-electrical conversion element held by the holder member. An optical signal input / output unit for the optical bus member.
An optical bus device, wherein the optical member is opposed to the optical signal input / output unit by combining the holder member so as to straddle the first main surface of the light guide member.
に形成されていることを特徴とする請求項１２に記載の
光バス装置。13. The optical bus device according to claim 12, wherein both end faces of the light guide member are formed as non-reflection end faces.
なくとも上記第１の主面と対向する底面に反射処理が施
されていることを特徴とする請求項１３に記載の光バス
装置。14. The optical bus device according to claim 13, wherein each of the light guide members is subjected to a reflection treatment on at least a bottom surface facing the first main surface exposed to the outside. .
材に形成された複数の組込溝内にそれぞれ充填されると
ともに各組込溝を区割りする各隔壁によって互いの間隔
が保持されてなり、 上記第１の主面を除く他の外周面が上記各組込溝の内壁
面及び底面壁に形成した反射層に密着されることを特徴
とする請求項１３に記載の光バス装置。15. The light guide members are respectively filled in a plurality of built-in grooves formed in the separator member, and are spaced from each other by partition walls that divide the built-in grooves. 14. The optical bus device according to claim 13, wherein an outer peripheral surface other than the first main surface is in close contact with a reflective layer formed on an inner wall surface and a bottom wall of each of the built-in grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000287659A JP4288841B2 (en) | 2000-09-21 | 2000-09-21 | Optical bus member manufacturing method and optical bus device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000287659A JP4288841B2 (en) | 2000-09-21 | 2000-09-21 | Optical bus member manufacturing method and optical bus device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002098851A true JP2002098851A (en) | 2002-04-05 |
| JP4288841B2 JP4288841B2 (en) | 2009-07-01 |
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ID=18771375
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000287659A Expired - Fee Related JP4288841B2 (en) | 2000-09-21 | 2000-09-21 | Optical bus member manufacturing method and optical bus device |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7228018B2 (en) | 2002-10-01 | 2007-06-05 | Seiko Epson Corporation | Optical interconnection circuit, manufacturing method thereof, electro-optical device and electronic equipment |
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Also Published As
| Publication number | Publication date |
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| JP4288841B2 (en) | 2009-07-01 |
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