JP2019071416A - 高い反射減衰量を備えるtoパッケージ - Google Patents
高い反射減衰量を備えるtoパッケージ Download PDFInfo
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Abstract
Description
本発明は、オプトエレクトロニクス素子用のTOパッケージに関する。特に、本発明は、データ伝送のための受信側レーザーダイオードまたは送信側レーザーダイオード用のTOパッケージに関する。さらに本発明は、TOパッケージを製造する方法に関する。
オプトエレクトロニクス素子用のTO(Transistor−Outline)パッケージが公知である。この種のパッケージは、送信側または受信側のレーザーダイオードに対して、特にデータ信号の伝送の領域において使用される。
これに対して、本発明の課題は、良好なインピーダンス特性を備えたTOパッケージを提供することであり、ここでは上述した、従来技術の欠点が、少なくとも低減されている。
本発明の課題は既に、請求項1記載のTOパッケージならびにこのTOパッケージを製造するための方法によって解決される。
図1は、本発明のTOパッケージ1の台座2の上面の平面図を示している。完全なTOパッケージ1は、この台座2の上に載置されている、ウィンドウを備えたキャップを含んでいてよい(図示されていない)。
Claims (15)
- オプトエレクトロニクス素子用の台座を備え、
前記台座は、封止用コンパウンド、特にガラスから成る封止用コンパウンド内に埋設された接続ピンとして形成された少なくとも1つの電気的なフィードスルーを有しており、
前記台座は、好ましくは下面に凹部を有し、前記凹部内で前記接続ピンの少なくとも1つは、前記フィードスルーの1つにおいて、前記台座の前記下面から引き出されている、
ことを特徴とするTOパッケージ。 - 2つの、特に厳密に2つのコンタクトピンが、厳密に1つの凹部において、前記下面から引き出されている、請求項1記載のTOパッケージ。
- 前記凹部は、中空空間を形成する、または前記封止用コンパウンドの誘電率よりも低い誘電率を有する材料によって充填されている、請求項1または2記載のTOパッケージ。
- 前記凹部は、横断面において、実質的に円形または長孔の形状で形成されている、請求項1から3までのいずれか1項記載のTOパッケージ。
- 前記凹部は、1〜5mm、好ましくは1.2〜2.75mmの長さlcを有しており、かつ0.3〜3mm、好ましくは0.7〜1.8mmの幅dcを有しており、または0.3〜3mm、好ましくは0.7〜1.8mmの直径を有しており、かつ/または0.1〜1.5mm、好ましくは0.4〜0.8mmの深さを有しており、かつ/または
前記フィードスルーは、0.7〜1.4mmの幅または直径dgおよび/または1.45〜2.35mmの長さlgを有しており、かつ/または
1つのフィードスルー内に配置されている2つの接続ピンは、0.5〜0.95mmの間隔pを有しており、かつ/または
前記フィードスルーにおける少なくとも1つの接続ピンの直径は、0.2〜0.5mmであり、かつ/または
前記凹部は、前記フィードスルーの1.2〜5倍、好ましくは1.5〜2倍の幅/直径を有している、請求項1から4までのいずれか1項記載のTOパッケージ。 - 前記凹部は、前記台座の高さの20〜50%、好ましくは35〜45%を、少なくとも、前記凹部に接している領域において占めている、請求項1から5までのいずれか1項記載のTOパッケージ。
- 前記凹部内に配置された導体路区間は、前記電気的なフィードスルー内に配置されている導体路区間と比べて1.2〜4倍、好ましくは1.6〜2.7倍高いインピーダンスを有している、請求項1から6までのいずれか1項記載のTOパッケージ。
- TOパッケージにオプトエレクトロニクス素子が実装されており、かつTOパッケージは、導体路に接続されており、前記導体路の接続点と前記オプトエレクトロニクス素子の接続点との間に延在している信号経路のインピーダンスは、10〜150Ωであり、好ましくは40〜60Ωである、または20〜30Ωである、または90〜110Ωである、請求項1から7までのいずれか1項記載のTOパッケージ。
- 前記接続ピンは、プリント回路基板、特にフレキシブルプリント回路基板に接続されており、
プリント回路基板の少なくとも1つの接続点と接続ピンは、ほぼ前記台座の前記下面の高さに位置している、請求項1から8までのいずれか1項記載のTOパッケージ。 - 前記凹部は、前記電気的なフィードスルーの直径の1.0〜4.0倍、好ましくは1.0〜3.0倍、特に有利には1.2〜2.5倍の大きさの幅または直径を有している、請求項1から9までのいずれか1項記載のTOパッケージ。
- 前記凹部は、前記電気的なフィードスルー内に配置されている、前記接続ピンの区間の直径の1.5〜5.0倍、好ましくは2.0〜3.0倍の大きさの幅または直径を有している、請求項1から10までのいずれか1項記載のTOパッケージ。
- 前記台座は、単層であり、特にワンピースに形成されている、請求項1から11までのいずれか1項記載のTOパッケージ。
- 前記パッケージの信号経路の反射減衰量は、10〜20GHzの範囲において平坦部を形成し、前記平坦部内で、前記反射減衰量は、10〜35dBであり、好ましくは15〜20dBであり、かつ/または
10〜20GHzの範囲において、前記パッケージの信号経路の前記反射減衰量は、±2.5dBの間の範囲内にある、請求項1から12までのいずれか1項記載のTOパッケージ。 - 前記TOパッケージの前記台座を打ち抜き加工し、前記凹部をエンボス加工する、請求項1から13までのいずれか1項記載のTOパッケージを製造する方法。
- 前記凹部を、打ち抜き時にエンボス加工する、請求項14記載の方法。
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