JP6834692B2 - 光デバイスと回路基板との接続構造、及びこれを用いた光伝送装置 - Google Patents
光デバイスと回路基板との接続構造、及びこれを用いた光伝送装置 Download PDFInfo
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Description
本発明の他の態様によると、前記凹部は少なくとも2つ備えられている。
本発明の他の態様によると、前記柱状部材は、前記凹部を通って前記フレキシブル配線板の板面の上部へ延在し、当該板面からの前記柱状部材の突出し長さは1mm以上である。
本発明の他の態様によると、前記柱状部材は、前記回路基板の基板面の上方で折れ曲がり、当該基板面に沿って延在する部分を有し、前記フレキシブル配線板の前記一のエッジを含む部分が、前記基板面に沿って延在する部分と前記基板面との間に挟持されるように配され、前記基板面に沿って延在する部分と当該基板面との間に、前記接地パターンから前記柱状部材の側面にせり上がるハンダが形成されている。
本発明の他の態様によると、前記凹部は、平面視が半円形状であり、前記柱状金属は、前記回路基板に設けられたビア又はスルーホールに挿入された断面が円形のピンである。
本発明の他の態様は、光伝送装置であり、当該光伝送装置は、フレキシブル配線板を備える光デバイスである光変調器と、当該光変調器を駆動する回路が構成された回路基板と、を備え、前記フレキシブル配線板と前記回路基板とが上記いずれか一項に記載の接続構造により接続されている。
本光変調器102は、光変調素子202と、光変調素子202を収容する筺体204と、上述のFPC108と、光源106からの光を光変調素子202に入射するための光ファイバ208と、光変調素子202から出力される光を筺体204の外部へ導く光ファイバ210と、を備える。
Claims (6)
- 光デバイスと回路基板との接続構造であって、
前記光デバイスは、当該光デバイスに高周波信号を入力するための電極が接続された導電パターンを備えるフレキシブル配線板を備え、
前記フレキシブル配線板は、
一のエッジに、前記回路基板上の導体パターンと接続される接続用パッドが配列されており、
前記接続用パッドは、少なくとも一つの接地用パッドと、当該接地用パッドを両側方から挟む少なくとも二つの信号用パッドと、を含み、
前記フレキシブル配線板の前記一のエッジのうち前記接地用パッドが形成された部分に、当該エッジに開口部を有する少なくとも一つの凹部を備え、
前記回路基板は、
当該回路基板の面上の、前記接地用パッドが接続される前記導体パターンに、当該導体パターンから前記回路基板の基板面の上方へ延在する金属から成る柱状部材が設けられており、
前記凹部が前記柱状部材に嵌まり込んだ状態において前記導体パターンと前記接続用パッドとが、他の部材を介することなくハンダにより直接固定され、
前記柱状部材と前記フレキシブル配線板に形成された接地パターンとの間に、前記接地パターンから前記柱状部材の側面にせり上がるハンダが形成されている、
接続構造。 - 少なくとも2つの前記凹部を備える、
請求項1に記載の接続構造。 - 前記柱状部材は、前記凹部を通って前記フレキシブル配線板の板面の上部へ延在し、
当該板面からの前記柱状部材の突出し長さが1mm以上である、
請求項1又は2に記載の接続構造。 - 前記柱状部材は、前記回路基板の基板面の上方で折れ曲がり、当該基板面に沿って延在する部分を有し、
前記フレキシブル配線板の前記一のエッジを含む部分が、前記基板面に沿って延在する部分と前記基板面との間に挟持されるように配され、
前記基板面に沿って延在する部分と当該基板面との間に、前記接地パターンから前記柱状部材の側面にせり上がるハンダが形成されている、
請求項1又は2に記載の接続構造。 - 前記凹部は、平面視が半円形状であり、
前記柱状部材は、前記回路基板に設けられたビア又はスルーホールに挿入された断面が円形のピンである、
請求項1ないし4のいずれか一項に記載の接続構造。 - フレキシブル配線板を備える光デバイスである光変調器と、
当該光変調器を駆動する回路が構成された回路基板と、
を備え、
前記フレキシブル配線板と前記回路基板とが請求項1ないし5のいずれか一項に記載の接続構造により接続されている、
光伝送装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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JP2017067208A JP6834692B2 (ja) | 2017-03-30 | 2017-03-30 | 光デバイスと回路基板との接続構造、及びこれを用いた光伝送装置 |
CN201810120809.6A CN108696319B (zh) | 2017-03-30 | 2018-02-05 | 光器件与电路基板之间的连接结构及使用其的光传送装置 |
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