JP2019115038A - データ送受信装置、これを含む半導体パッケージ、及びデータ送受信方法 - Google Patents
データ送受信装置、これを含む半導体パッケージ、及びデータ送受信方法 Download PDFInfo
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Abstract
Description
200、200a データ送信部
210 ストローブドライバー
220a、220b、220n データドライバー
300、300a バス
310 ストローブ転送ライン
320a、320b、320n データ転送ライン
400、400a データ受信部
410 ストローブバッファ
420a、420b、420n 感知増幅器(センスアンプ)
422 プリチャージ回路
424 センシング回路
426 スイッチング回路
500、500a 基準信号供給部
510 基準ドライバー
520 基準転送ライン
530 基準信号発生器
600、700、800 半導体パッケージ
610、710、810 基板
630、730、830 半導体チップ
632、732、832 データ送信部
634、734、834 データ受信部
640、740 TSV(シリコン貫通ビア)
Claims (20)
- 第1乃至第N(Nは、自然数)データ信号を提供する第1乃至第Nデータドライバーと、ストローブ信号を提供するストローブドライバーと、を含むデータ送信部と、
前記ストローブ信号に基づいて制御信号を発生するストローブバッファと、前記制御信号、基準信号、及び前記第1乃至第Nデータ信号に基づいてNビットのデータをセンシングする第1乃至第N感知増幅器と、を含むデータ受信部と、
前記ストローブドライバー及び前記ストローブバッファを連結するストローブTSVと、前記第1乃至第Nデータドライバー及び前記第1乃至第N感知増幅器を連結する第1乃至第NデータTSVと、を含むバスと、
前記基準信号を提供し、データ転送時に前記第1乃至第Nデータ信号より放電速度が遅いように前記基準信号を制御する基準信号供給部と、
を含むデータ送受信装置。 - 前記基準信号供給部は、
前記データ送信部に含まれ、前記第1乃至第Nデータドライバーより低い駆動能力を有する基準ドライバー、
を含むことを特徴とする、請求項1に記載のデータ送受信装置。 - 前記基準信号供給部は、
前記バスに含まれ、前記基準ドライバー及び前記第1乃至第N感知増幅器を連結する基準TSV、
をさらに含むことを特徴とする、請求項2に記載のデータ送受信装置。 - 前記第1乃至第Nデータ信号を転送する以前に、プリチャージ区間で、前記第1乃至第NデータTSV及び前記基準TSVは同一なプリチャージレベルにプリチャージされ、
前記第1乃至第Nデータ信号の転送が始まると、デベロープ区間で、前記第1乃至第NデータTSVの各々は、転送しようとする論理レベルに従って、前記プリチャージレベルを維持するか、または第1放電速度で放電され、前記基準TSVは前記第1放電速度より遅い第2放電速度で放電され、
前記第1乃至第Nデータ信号の転送が完了した以後に、センシング区間で、前記第1乃至第NデータTSVと前記基準TSVとのレベル差に基づいて前記Nビットのデータをセンシングすることを特徴とする、請求項3に記載のデータ送受信装置。 - 前記デベロープ区間で前記第1乃至第NデータTSVのうち、少なくとも一部が前記第1放電速度で放電された以後に、前記センシング区間の開始時点で前記第1乃至第NデータTSVのうちの少なくとも一部は前記プリチャージレベルより低い第1レベルを有し、
前記デベロープ区間で前記基準TSVが前記第2放電速度で放電された以後に、前記センシング区間の開始時点で前記基準TSVは前記プリチャージレベルより低く、前記第1レベルより高い第2レベルを有することを特徴とする、請求項4に記載のデータ送受信装置。 - 前記基準ドライバーに含まれるトランジスタは、前記第1乃至第Nデータドライバーに含まれるトランジスタとサイズが異なることを特徴とする、請求項2に記載のデータ送受信装置。
- 前記基準信号供給部は、
前記データ受信部に含まれ、前記基準信号を発生する基準信号発生器を含むことを特徴とする、請求項1に記載のデータ送受信装置。 - 前記基準信号発生器は、
前記基準信号を提供する基準ノードと接地電圧との間に並列接続される第1キャパシタ及び第1抵抗と、
プリチャージ電圧と前記基準ノードとの間に連結されて、プリチャージ区間で前記基準ノードをプリチャージさせる第1スイッチと、
前記基準ノードと前記第1抵抗との間に連結されて、デベロープ区間で前記基準ノードを前記第1乃至第NデータTSVの第1放電速度より遅い第2放電速度で放電させる第2スイッチと、を含むことを特徴とする、請求項7に記載のデータ送受信装置。 - 前記第1乃至第Nデータドライバーの各々に対応する抵抗値及び前記第1乃至第NデータTSVの各々に対応するキャパシタ値に基づいて、前記第2放電速度が前記第1放電速度より遅いように前記第1抵抗の抵抗値及び前記第1キャパシタのキャパシタ値が決定されることを特徴とする、請求項8に記載のデータ送受信装置。
- 前記第1感知増幅器は、
前記第1データTSVと連結されて前記第1データ信号を受信する第1入力端子と、
前記基準信号を受信する第2入力端子と、
プリチャージ区間でプリチャージ制御信号に基づいて前記第1入力端子及び前記第2入力端子をプリチャージさせるプリチャージ回路と、
センシング区間でセンシング制御信号に基づいて前記第1入力端子と前記第2入力端子とのレベル差をセンシングして前記Nビットのデータの第1ビットをセンシングするセンシング回路と、を含むことを特徴とする、請求項1に記載のデータ送受信装置。 - 前記制御信号は前記プリチャージ制御信号及び前記センシング制御信号を含み、
前記ストローブバッファは、前記ストローブ信号に基づいて前記プリチャージ制御信号及び前記センシング制御信号を発生することを特徴とする、請求項10に記載のデータ送受信装置。 - 前記ストローブバッファは、
前記ストローブ信号に基づいて、前記プリチャージ区間、前記センシング区間、及び前記プリチャージ区間と前記センシング区間との間のデベロープ区間の長さを調節することを特徴とする、請求項10に記載のデータ送受信装置。 - 第1乃至第N(Nは、自然数)データ信号を転送する以前に、プリチャージ区間で、前記第1乃至第Nデータ信号を提供する第1乃至第Nデータ転送ライン及び基準信号を提供する基準ノードを同一なプリチャージレベルにプリチャージさせるステップと、
前記第1乃至第Nデータ信号の転送が始まると、デベロープ区間で、前記第1乃至第Nデータ転送ラインの各々を、転送しようとする論理レベルに従って、前記プリチャージレベルに維持するか、または第1放電速度で放電させるステップと、
前記デベロープ区間で、前記基準ノードを前記第1放電速度より遅い第2放電速度で放電させるステップと、
前記第1乃至第Nデータ信号の転送が完了した以後に、センシング区間で、前記第1乃至第Nデータ転送ラインと前記基準ノードとのレベル差に基づいてNビットのデータの各ビットの論理レベルをセンシングして、前記Nビットのデータを受信するステップと、
を含むデータ送受信方法。 - 前記第1乃至第Nデータ転送ラインは、半導体基板を貫通して形成される第1乃至第NデータTSVを含むことを特徴とする、請求項13に記載のデータ送受信方法。
- 前記デベロープ区間で前記基準ノードを前記第2放電速度で放電させるステップは、
前記第1乃至第Nデータ信号を提供する第1乃至第Nデータドライバーより低い駆動能力を有する基準ドライバーを用いて、前記基準ノードを前記第2放電速度で放電させるステップを含むことを特徴とする、請求項13に記載のデータ送受信方法。 - 前記デベロープ区間で前記基準ノードを前記第2放電速度で放電させるステップは、
前記基準ノードと接地電圧との間に並列接続される第1キャパシタ及び第1抵抗を含む基準信号発生器を用いて前記基準ノードを前記第2放電速度で放電させるステップを含み、
前記第1乃至第Nデータ信号を提供する第1乃至第Nデータドライバーの各々に対応する抵抗値及び前記第1乃至第Nデータ転送ラインの各々に対応するキャパシタ値に基づいて、前記第2放電速度が前記第1放電速度より遅いように前記第1抵抗の抵抗値及び前記第1キャパシタのキャパシタ値が決定されることを特徴とする、請求項13に記載のデータ送受信方法。 - 基板と、
前記基板上に設けられ、第1乃至第N(Nは、自然数)データ信号を提供する第1乃至第Nデータドライバーと、ストローブ信号を提供するストローブドライバーと、を備えるデータ送信部、を含む第1半導体チップと、
前記基板上に設けられ、前記ストローブ信号に基づいて制御信号を発生するストローブバッファと、前記制御信号、基準信号、及び前記第1乃至第Nデータ信号に基づいてNビットのデータをセンシングする第1乃至第N感知増幅器と、を備えるデータ受信部、を含む第2半導体チップと、
前記第1半導体チップ及び前記第2半導体チップの間に形成され、前記ストローブドライバー及び前記ストローブバッファを連結するストローブ転送ラインと、前記第1乃至第Nデータドライバー及び前記第1乃至第N感知増幅器を連結する第1乃至第Nデータ転送ラインと、を含むバスと、
前記基準信号を提供し、データ転送時に前記第1乃至第Nデータ信号より放電速度が遅いように前記基準信号を制御する基準信号供給部と、
を含む半導体パッケージ。 - 前記第1半導体チップは前記第2半導体チップ上に配置され、
前記ストローブ転送ラインは、前記第1半導体チップが形成される第1半導体基板及び前記第2半導体チップが形成される第2半導体基板のうち、少なくとも1つを貫通して形成されるストローブTSVを含み、
前記第1乃至第Nデータ転送ラインは、前記第1半導体基板及び前記第2半導体基板のうち、少なくとも1つを貫通して形成される第1乃至第NデータTSVを含むことを特徴とする、請求項17に記載の半導体パッケージ。 - 前記第2半導体チップは、外部装置と直接的に通信し、
前記第1半導体チップは、前記第2半導体チップを通じて前記外部装置と通信することを特徴とする、請求項18に記載の半導体パッケージ。 - 前記第1半導体チップ及び前記第2半導体チップは同一平面上に配置されることを特徴とする、請求項17に記載の半導体パッケージ。
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